Furnace, AC, & Plumbing Services In Milwaukee, WI

Professional HVAC Repair & Plumbing Services in Milwaukee, WI

Thielmann - Milwaukee - Art Museum 14

When it comes to keeping your home comfortable year-round in Milwaukee, Wisconsin, having reliable heating, air conditioning, and HVAC systems should not be overlooked. If you are looking for quality home services, you are in good company.

Our team of contractors offers industry-leading air conditioning, heating, and HVAC repair services in Milwaukee and will work with you to ensure your home stays cozy all year long. Trust the Thielmann Group to get the job done right. Contact our professionals at (262) 299-6197 to book an appointment and receive assistance with a defective HVAC system.

Air Conditioning Repair Services

Our air conditioning repair services are designed to address any issues such as strange noises and insufficient cooling. If you experience rising energy bills, unusual odors, loud noises, or hot air blowing out of your unit, contact our professionals for support.

Air Conditioner Replacement and Installation Services

A malfunctioning air conditioner is the last thing you want to deal with during a hot and humid summer in Milwaukee.. Our team helps you select the right unit for your home’s size and cooling needs.

Air conditioners are not meant to last forever. You might need an air conditioner replacement service if your unit is experiencing frequent breakdowns, blowing uneven air, or is over 10 years old. If you notice any of these problems, consider contacting us for reliable AC replacement services.

Sometimes, repairs aren’t sufficient. If your air conditioner is beyond repair or you are looking to upgrade to a more energy-efficient model, the Thielmann Group offers replacement and installation services to suit your needs.

Ductless Mini-Split Services

From warm summer days to cold winter nights, there is no temperature a ductless mini-split HVAC system can’t handle. For homes without ductwork or those seeking more flexible cooling options, ductless mini-split systems are a great solution. Our professionals provide installation, repair, and maintenance services for ductless mini-split systems in Milwaukee and Southeastern Wisconsin.

Furnace Repair and Tune-Up Services

Going through a winter in Wisconsin without a functioning furnace is like wearing sandals in the snow—it’s not smart. Luckily, our team offers a variety of HVAC services for local residents in Milwaukee including furnace repair options.

We will make sure your heating system functions properly when you need it most. From minor repairs to major maintenance, there is nothing our technicians can’t handle. Contact us if your furnace is not producing heat, leaking fluids, making strange noises, or short cycling.

Furnace Installation and Replacement Services

If it’s time to replace your old furnace or install a new one, our team offers expert furnace installation services tailored to your heating needs.

Our professionals will guide you through the selection process, ensuring you choose a furnace that meets your efficiency and comfort requirements, and handle the installation with precision and care.

Milwaukee, Wisconsin HVAC Repair Services

Heat Pump System Installation and Maintenance Services

Did you know a heat pump system heats and cools your home? This heating and cooling versatility makes heat pumps a popular choice for residents in the local Milwaukee area.

Heat pumps offer year-round comfort, consistent temperature control, and improved energy efficiency for homeowners in Southeastern Wisconsin. Plus, they are much better for the environment.

Boiler Installation and Repair Services

As energy costs continue to rise, many homeowners are turning to energy-efficient boilers. Boilers are designed to heat water which is then dispersed as steam through your radiators.

Whether your old system is aging itself out or you need maintenance, our team of technicians have you covered with comprehensive boiler repair services. Get in touch with us if you notice common boiler problems like foul odors, strange noises, a yellow pilot light, or insufficient heat.

Ductwork and Indoor Air Quality Services

Old ductwork can impact your indoor air quality, especially if it develops cracks or gaps. Unfortunately, ductwork problems happen, and when they do, our team is available to provide you with superior air duct repair services to restore air circulation in your house.

Signs like uneven cooling, rising energy bills, loud noises, and the presence of mold all warrant a call to our technicians. Our team offers trustworthy ductwork and HVAC services for homeowners in Milwaukee, Wisconsin and will work with you to restore airflow throughout your system.

Expert Plumbing Services in Milwaukee, WI

Plumbing problems often occur without warning, interrupting your routine and leaving you in a messy situation. When moments like this happen, you need a team of experts who respond fast and fix the problem the right way the first time. Thielmann Heating, Cooling, and Plumbing has a team of Milwaukee plumbers who are trained to handle any problem your home throws your way with professional, quality workmanship. From clogged drains to broken water heaters, our licensed plumbers handle every job with precision and care.

We are able to handle a wide array of plumbing problems in homes both old and new. Our team uses proven repair methods and high-quality parts to ensure every fix lasts. Whether you need a new fixture installed, pipes replaced, or a sump pump serviced, we make the process simple and stress-free. If your water heater struggles to deliver consistent hot water, we can install or repair both standard and tankless units to match your household needs.

Milwaukee homeowners count on us for:

  • Water heater repairs, replacements, and maintenance to keep your showers hot and steady.
  • Fast drain cleaning and clog removal to keep your plumbing flowing freely.
  • Fixture installation and repair for sinks, faucets, and toilets that work the way they should.
  • Leak detection and pipe replacement to stop water waste and protect your home.
  • Sump pump installation and maintenance to prevent basement flooding.
  • Garbage disposal repair and installation to make kitchen cleanup simple.
  • Water softener and filtration system installation for cleaner, fresher water in every tap.

We offer regular plumbing inspections to find small leaks or corrosion early before they cause expensive water damage. Keeping your plumbing in good shape helps lower costs, reduce waste, and extend the life of your system. Thielmann Heating, Cooling, and Plumbing proudly serves Milwaukee with honest recommendations, clear pricing, and dependable service that keeps your home running right. Call us today at (262) 299-6197 to book your plumbing appointment.

Milwaukee, Wisconsin HVAC Repair Services

Enjoy the Local Attractions in Milwaukee and Worry Less About Heating and Air Conditioning Issues

One of the advantages of working with our team of professionals is having more time to explore the local Milwaukee, Wisconsin area. Our team will fix your broken furnace or HVAC system to ensure you are able to enjoy your weekend with friends or family in Milwaukee. The city boasts an array of fun attractions for visitors and residents.

Take a stroll along the Milwaukee Riverwalk, where you can enjoy views of the city skyline. Between the shops and restaurants, you can check out the Milwaukee Art Museum and the famous Harley-Davidson Museum.

For a taste of the rich brewing heritage in Milwaukee, don’t miss a visit to Best Place at the Historic Pabst Brewery, where you can take a guided tour and sample some of Wisconsin’s classic brews. Sports enthusiasts can also catch a game at the iconic Fiserv Forum or check out the American Family Field.

Whatever you choose to do, you can come home to comfort thanks to our team. Our crew will work hard to keep your house safe and comfortable throughout the summer or winter seasons.

Milwaukee, Wisconsin HVAC Repair Services

Book a Heating or Cooling Appointment With Our Team in Milwaukee

Milwaukee is one of America’s greatest cities, and we are proud to have been servicing its residents for nearly 100 years. Whether you require a brand-new air conditioner or assistance diagnosing a furnace issue, we’re here to assist you.

Call our team of HVAC contractors at (262) 299-6197 to schedule a service today and get peace of mind knowing your heating and air conditioning systems are in good hands.

Read Reviews by Our Customers

Recent Jobs and Reviews in Milwaukee, WI

Job Locations and Reviews

Performed sump pump inspection and assessment in basement utility area. Evaluated existing blue submersible sump pump installed in below-grade concrete pit with brick-lined walls. Verified pump positioning and operational setup within basin. Documented electrical connections and power supply routing, including pump cord configuration. Assessed basement moisture conditions, noting rust staining on concrete floor indicating previous water intrusion or ongoing moisture issues. Confirmed proper drainage pipe assembly consisting of white PVC discharge piping with multiple elbow joints forming vertical wall-mounted configuration for water evacuation. System appears functional with appropriate components in place for groundwater management and basement flood prevention.
Performed sump pump inspection and assessment in basement utility area. Evaluated existing blue submersible sump pump installed in below-grade concrete pit with brick-lined walls. Verified pump positioning and operational setup within basin. Documented electrical connections and power supply routing, including pump cord configuration. Assessed basement moisture conditions, noting rust staining on concrete floor indicating previous water intrusion or ongoing moisture issues. Confirmed proper drainage pipe assembly consisting of white PVC discharge piping with multiple elbow joints forming vertical wall-mounted configuration for water evacuation. System appears functional with appropriate components in place for groundwater management and basement flood prevention.
Dan E.
Dan E. Checked in
Performed sump pump inspection and assessment in basement utility area. Evaluated existing blue submersible sump pump installed in below-grade concrete pit with brick-lined walls. Verified pump positioning and operational setup within basin. Documented electrical connections and power supply routing, including pump cord configuration. Assessed basement moisture conditions, noting rust staining on concrete floor indicating previous water intrusion or ongoing moisture issues. Confirmed proper drainage pipe assembly consisting of white PVC discharge piping with multiple elbow joints forming vertical wall-mounted configuration for water evacuation. System appears functional with appropriate components in place for groundwater management and basement flood prevention.
Milwaukee, WI 53219
Conducted comprehensive assessment of existing HVAC system and water heater located in basement mechanical room for equipment replacement estimate. Evaluated aging furnace or air handler unit with visible rust staining on metal ductwork and casings, indicating advanced wear and potential compromised system integrity. Documented current system configuration including existing ductwork layout, white insulated refrigerant lines, cylindrical humidifier or air cleaner attachment, and overall mechanical room accessibility for replacement equipment installation. Assessed utility room dimensions and clearances to determine appropriate replacement unit sizing and installation requirements. Provided detailed replacement recommendations and equipment specifications for new HVAC system installation.
Conducted comprehensive assessment of existing HVAC system and water heater located in basement mechanical room for equipment replacement estimate. Evaluated aging furnace or air handler unit with visible rust staining on metal ductwork and casings, indicating advanced wear and potential compromised system integrity. Documented current system configuration including existing ductwork layout, white insulated refrigerant lines, cylindrical humidifier or air cleaner attachment, and overall mechanical room accessibility for replacement equipment installation. Assessed utility room dimensions and clearances to determine appropriate replacement unit sizing and installation requirements. Provided detailed replacement recommendations and equipment specifications for new HVAC system installation.
Dave V.
Dave V. Checked in
Conducted comprehensive assessment of existing HVAC system and water heater located in basement mechanical room for equipment replacement estimate. Evaluated aging furnace or air handler unit with visible rust staining on metal ductwork and casings, indicating advanced wear and potential compromised system integrity. Documented current system configuration including existing ductwork layout, white insulated refrigerant lines, cylindrical humidifier or air cleaner attachment, and overall mechanical room accessibility for replacement equipment installation. Assessed utility room dimensions and clearances to determine appropriate replacement unit sizing and installation requirements. Provided detailed replacement recommendations and equipment specifications for new HVAC system installation.
Milwaukee, WI 53207
Completed installation and system start-up of outdoor HVAC unit with associated electrical disconnect, refrigerant line set, and junction box assembly. Performed refrigerant charging procedures, pressure testing, and verified all electrical connections and conduit installations were properly secured to manufacturer specifications.
Completed installation and system start-up of outdoor HVAC unit with associated electrical disconnect, refrigerant line set, and junction box assembly. Performed refrigerant charging procedures, pressure testing, and verified all electrical connections and conduit installations were properly secured to manufacturer specifications.
Todd H.
Todd H. Checked in
Completed installation and system start-up of outdoor HVAC unit with associated electrical disconnect, refrigerant line set, and junction box assembly. Performed refrigerant charging procedures, pressure testing, and verified all electrical connections and conduit installations were properly secured to manufacturer specifications.
Milwaukee, WI 53219
Completed furnace installation with full system commissioning and pressure testing. Used digital manometer to verify gas pressure readings, measuring manifold pressure at 794 units initially and confirming final operating pressure at 116.5 units to ensure proper gas valve operation and burner performance within manufacturer specifications. All pressure readings documented and system verified for safe, efficient operation.
Completed furnace installation with full system commissioning and pressure testing. Used digital manometer to verify gas pressure readings, measuring manifold pressure at 794 units initially and confirming final operating pressure at 116.5 units to ensure proper gas valve operation and burner performance within manufacturer specifications. All pressure readings documented and system verified for safe, efficient operation.
CJ K.
CJ K. Checked in
Completed furnace installation with full system commissioning and pressure testing. Used digital manometer to verify gas pressure readings, measuring manifold pressure at 794 units initially and confirming final operating pressure at 116.5 units to ensure proper gas valve operation and burner performance within manufacturer specifications. All pressure readings documented and system verified for safe, efficient operation.
MILWAUKEE, WI 53215
Completed comprehensive HVAC system replacement estimate for residential property with aging outdoor condensing unit and existing electrical infrastructure. Assessed current light green/turquoise condenser unit positioned on concrete pad against exterior wall, evaluated electrical panel configuration including Square D and Techni-Center breaker boxes mounted in utility area, and documented existing electrical capacity and conduit routing to determine replacement system requirements and installation specifications.
Completed comprehensive HVAC system replacement estimate for residential property with aging outdoor condensing unit and existing electrical infrastructure. Assessed current light green/turquoise condenser unit positioned on concrete pad against exterior wall, evaluated electrical panel configuration including Square D and Techni-Center breaker boxes mounted in utility area, and documented existing electrical capacity and conduit routing to determine replacement system requirements and installation specifications.
Dave V.
Dave V. Checked in
Completed comprehensive HVAC system replacement estimate for residential property with aging outdoor condensing unit and existing electrical infrastructure. Assessed current light green/turquoise condenser unit positioned on concrete pad against exterior wall, evaluated electrical panel configuration including Square D and Techni-Center breaker boxes mounted in utility area, and documented existing electrical capacity and conduit routing to determine replacement system requirements and installation specifications.
Milwaukee, WI 53213
Conducted comprehensive assessment of basement mechanical room boiler system and associated HVAC components. Documented existing equipment configuration including wall-mounted heating units, copper and PVC piping networks, control boxes, expansion tank, and ventilation ductwork. Evaluated system layout, pipe connections with black valve handles, and overall mechanical infrastructure to provide accurate estimate for boiler replacement or upgrade requirements.
Conducted comprehensive assessment of basement mechanical room boiler system and associated HVAC components. Documented existing equipment configuration including wall-mounted heating units, copper and PVC piping networks, control boxes, expansion tank, and ventilation ductwork. Evaluated system layout, pipe connections with black valve handles, and overall mechanical infrastructure to provide accurate estimate for boiler replacement or upgrade requirements.
Dave V.
Dave V. Checked in
Conducted comprehensive assessment of basement mechanical room boiler system and associated HVAC components. Documented existing equipment configuration including wall-mounted heating units, copper and PVC piping networks, control boxes, expansion tank, and ventilation ductwork. Evaluated system layout, pipe connections with black valve handles, and overall mechanical infrastructure to provide accurate estimate for boiler replacement or upgrade requirements.
Milwaukee, WI 53219
Milwaukee, WI - Completed comprehensive tune-up and safety inspection on gas furnace system, including thorough examination of blower motor assembly, gas valve manifold, and all electrical connections. All components were found to be operating within normal parameters, with wiring harnesses secure and properly routed throughout the unit. System tested and confirmed to be functioning efficiently with no issues identified.
Adriel H.
Adriel H. Checked in
Completed comprehensive tune-up and safety inspection on gas furnace system, including thorough examination of blower motor assembly, gas valve manifold, and all electrical connections. All components were found to be operating within normal parameters, with wiring harnesses secure and properly routed throughout the unit. System tested and confirmed to be functioning efficiently with no issues identified.
Milwaukee, WI 53207
Conducted comprehensive assessment of existing HVAC system for complete replacement estimate. Evaluated outdoor condensing unit positioned on exterior foundation, noting current configuration with electrical disconnect, meter, and associated conduit routing on building exterior. Inspected basement mechanical room containing existing Carrier furnace and ductwork infrastructure, including horizontal trunk line and branch distribution system. Identified location requirements for additional return air register to improve system airflow and balance. Documented equipment specifications, electrical service capacity, condensate drainage pathways, and existing duct layout to determine replacement system requirements and installation scope.
Conducted comprehensive assessment of existing HVAC system for complete replacement estimate. Evaluated outdoor condensing unit positioned on exterior foundation, noting current configuration with electrical disconnect, meter, and associated conduit routing on building exterior. Inspected basement mechanical room containing existing Carrier furnace and ductwork infrastructure, including horizontal trunk line and branch distribution system. Identified location requirements for additional return air register to improve system airflow and balance. Documented equipment specifications, electrical service capacity, condensate drainage pathways, and existing duct layout to determine replacement system requirements and installation scope.
Dave V.
Dave V. Checked in
Conducted comprehensive assessment of existing HVAC system for complete replacement estimate. Evaluated outdoor condensing unit positioned on exterior foundation, noting current configuration with electrical disconnect, meter, and associated conduit routing on building exterior. Inspected basement mechanical room containing existing Carrier furnace and ductwork infrastructure, including horizontal trunk line and branch distribution system. Identified location requirements for additional return air register to improve system airflow and balance. Documented equipment specifications, electrical service capacity, condensate drainage pathways, and existing duct layout to determine replacement system requirements and installation scope.
Milwaukee, WI 53207
Performed diagnostic inspection and electrical testing on residential furnace system. Using digital multimeter, measured and verified proper voltage readings across gas valve assembly and motor components, confirming electrical functionality at 5486 ohms resistance. Inspected blower motor assembly, fan blade, and associated wiring connections including control wiring harnesses. All components showed normal operational wear with minor dust accumulation on blower assembly, which is typical for seasonal equipment usage.
Performed diagnostic inspection and electrical testing on residential furnace system. Using digital multimeter, measured and verified proper voltage readings across gas valve assembly and motor components, confirming electrical functionality at 5486 ohms resistance. Inspected blower motor assembly, fan blade, and associated wiring connections including control wiring harnesses. All components showed normal operational wear with minor dust accumulation on blower assembly, which is typical for seasonal equipment usage.
Makinze C.
Makinze C. Checked in
Performed diagnostic inspection and electrical testing on residential furnace system. Using digital multimeter, measured and verified proper voltage readings across gas valve assembly and motor components, confirming electrical functionality at 5486 ohms resistance. Inspected blower motor assembly, fan blade, and associated wiring connections including control wiring harnesses. All components showed normal operational wear with minor dust accumulation on blower assembly, which is typical for seasonal equipment usage.
Milwaukee, WI 53215
# HVAC Service - No Heat Call

Responded to no heat call on furnace less than 10 years old. Upon inspection, discovered heavy dust and debris accumulation throughout the blower compartment and on critical components. Blower motor assembly showed significant dust buildup on housing and ventilation slots, which can restrict airflow and cause overheating protection to activate. Inspected gas valve assembly and verified all electrical connections were secure. Multiple wire terminals and connectors showed proper installation with no signs of loose connections or overheating. Confirmed all manufacturer labels and component identifiers were intact. Assessed motor mounting hardware and found bolt secure with no vibration issues. Cleaned accumulated dust from blower motor housing, ventilation slots, and surrounding metal surfaces to restore proper airflow and heat transfer. Verified gas valve connections and associated piping showed no signs of leaks or damage. Checked all color-coded wiring ha
# HVAC Service - No Heat Call

Responded to no heat call on furnace less than 10 years old. Upon inspection, discovered heavy dust and debris accumulation throughout the blower compartment and on critical components. Blower motor assembly showed significant dust buildup on housing and ventilation slots, which can restrict airflow and cause overheating protection to activate. Inspected gas valve assembly and verified all electrical connections were secure. Multiple wire terminals and connectors showed proper installation with no signs of loose connections or overheating. Confirmed all manufacturer labels and component identifiers were intact. Assessed motor mounting hardware and found bolt secure with no vibration issues. Cleaned accumulated dust from blower motor housing, ventilation slots, and surrounding metal surfaces to restore proper airflow and heat transfer. Verified gas valve connections and associated piping showed no signs of leaks or damage. Checked all color-coded wiring ha
Nick K.
Nick K. Checked in
# HVAC Service - No Heat Call Responded to no heat call on furnace less than 10 years old. Upon inspection, discovered heavy dust and debris accumulation throughout the blower compartment and on critical components. Blower motor assembly showed significant dust buildup on housing and ventilation slots, which can restrict airflow and cause overheating protection to activate. Inspected gas valve assembly and verified all electrical connections were secure. Multiple wire terminals and connectors showed proper installation with no signs of loose connections or overheating. Confirmed all manufacturer labels and component identifiers were intact. Assessed motor mounting hardware and found bolt secure with no vibration issues. Cleaned accumulated dust from blower motor housing, ventilation slots, and surrounding metal surfaces to restore proper airflow and heat transfer. Verified gas valve connections and associated piping showed no signs of leaks or damage. Checked all color-coded wiring ha
MILWAUKEE, WI 53225
# HVAC Install - A/C & Coil

Completed installation of new air conditioning system including outdoor condensing unit and indoor evaporator coil. Installed outdoor unit on textured concrete pad with proper leveling and positioning adjacent to building structure. Connected refrigerant lines between outdoor condenser and indoor coil using appropriate line sets with proper insulation. Established PVC condensate drainage system with multiple connection points and proper pitch for efficient water removal from evaporator coil. Integrated new coil assembly into existing ductwork infrastructure within mechanical space, ensuring proper airflow alignment with return air plenum and filter access. Performed vacuum and pressure testing of refrigerant system using digital manifold gauges to verify system integrity and absence of leaks. Charged system with manufacturer-specified refrigerant to proper levels based on line length and ambient conditions. Verified electrical connections at both indoor and
# HVAC Install - A/C & Coil

Completed installation of new air conditioning system including outdoor condensing unit and indoor evaporator coil. Installed outdoor unit on textured concrete pad with proper leveling and positioning adjacent to building structure. Connected refrigerant lines between outdoor condenser and indoor coil using appropriate line sets with proper insulation. Established PVC condensate drainage system with multiple connection points and proper pitch for efficient water removal from evaporator coil. Integrated new coil assembly into existing ductwork infrastructure within mechanical space, ensuring proper airflow alignment with return air plenum and filter access. Performed vacuum and pressure testing of refrigerant system using digital manifold gauges to verify system integrity and absence of leaks. Charged system with manufacturer-specified refrigerant to proper levels based on line length and ambient conditions. Verified electrical connections at both indoor and
Hayden L.
Hayden L. Checked in
# HVAC Install - A/C & Coil Completed installation of new air conditioning system including outdoor condensing unit and indoor evaporator coil. Installed outdoor unit on textured concrete pad with proper leveling and positioning adjacent to building structure. Connected refrigerant lines between outdoor condenser and indoor coil using appropriate line sets with proper insulation. Established PVC condensate drainage system with multiple connection points and proper pitch for efficient water removal from evaporator coil. Integrated new coil assembly into existing ductwork infrastructure within mechanical space, ensuring proper airflow alignment with return air plenum and filter access. Performed vacuum and pressure testing of refrigerant system using digital manifold gauges to verify system integrity and absence of leaks. Charged system with manufacturer-specified refrigerant to proper levels based on line length and ambient conditions. Verified electrical connections at both indoor and
Milwaukee, WI 53222
# HVAC Service Report

Responded to no heat call on residential heating system less than 10 years old. Upon arrival, performed diagnostic inspection of gas furnace components. Visual examination revealed significant dust and debris accumulation on gas valve assembly and blower motor housing, indicating lack of routine maintenance. 

Inspected gas valve control mechanism and associated electrical connections, noting all wiring connections intact with red, yellow, and ground wires properly secured. Examined blower motor assembly and found excessive dirt buildup on motor housing and surrounding components affecting system performance. Copper gas supply line showed normal oxidation consistent with age but remained structurally sound with no leaks detected.

Cleaned gas valve exterior and surrounding area to improve component accessibility and heat dissipation. Performed thorough cleaning of blower motor assembly, removing accumulated dust and debris from motor housing and mounting surfaces
# HVAC Service Report

Responded to no heat call on residential heating system less than 10 years old. Upon arrival, performed diagnostic inspection of gas furnace components. Visual examination revealed significant dust and debris accumulation on gas valve assembly and blower motor housing, indicating lack of routine maintenance. 

Inspected gas valve control mechanism and associated electrical connections, noting all wiring connections intact with red, yellow, and ground wires properly secured. Examined blower motor assembly and found excessive dirt buildup on motor housing and surrounding components affecting system performance. Copper gas supply line showed normal oxidation consistent with age but remained structurally sound with no leaks detected.

Cleaned gas valve exterior and surrounding area to improve component accessibility and heat dissipation. Performed thorough cleaning of blower motor assembly, removing accumulated dust and debris from motor housing and mounting surfaces
Carlos R.
Carlos R. Checked in
# HVAC Service Report Responded to no heat call on residential heating system less than 10 years old. Upon arrival, performed diagnostic inspection of gas furnace components. Visual examination revealed significant dust and debris accumulation on gas valve assembly and blower motor housing, indicating lack of routine maintenance. Inspected gas valve control mechanism and associated electrical connections, noting all wiring connections intact with red, yellow, and ground wires properly secured. Examined blower motor assembly and found excessive dirt buildup on motor housing and surrounding components affecting system performance. Copper gas supply line showed normal oxidation consistent with age but remained structurally sound with no leaks detected. Cleaned gas valve exterior and surrounding area to improve component accessibility and heat dissipation. Performed thorough cleaning of blower motor assembly, removing accumulated dust and debris from motor housing and mounting surfaces
Milwaukee, WI 53221
Completed comprehensive HVAC tune-up service including system diagnostics and performance verification. Performed electrical testing on control board circuitry using digital multimeter, confirming proper voltage readings at 203V and verifying all electronic components within manufacturer specifications. Verified thermostat operation and calibration, with unit maintaining setpoint at 75°F and displaying accurate temperature readings.
Completed comprehensive HVAC tune-up service including system diagnostics and performance verification. Performed electrical testing on control board circuitry using digital multimeter, confirming proper voltage readings at 203V and verifying all electronic components within manufacturer specifications. Verified thermostat operation and calibration, with unit maintaining setpoint at 75°F and displaying accurate temperature readings.
Makinze C.
Makinze C. Checked in
Completed comprehensive HVAC tune-up service including system diagnostics and performance verification. Performed electrical testing on control board circuitry using digital multimeter, confirming proper voltage readings at 203V and verifying all electronic components within manufacturer specifications. Verified thermostat operation and calibration, with unit maintaining setpoint at 75°F and displaying accurate temperature readings.
Milwaukee, WI 53216
Completed residential HVAC system replacement in basement utility area, installing new furnace unit with proper PVC venting configuration and sheet metal plenum integration. Existing equipment was removed and replaced with modern high-efficiency system, including proper ductwork connections and exhaust/intake venting routed through dual white PVC pipes to ensure safe combustion air management and code-compliant installation.
Completed residential HVAC system replacement in basement utility area, installing new furnace unit with proper PVC venting configuration and sheet metal plenum integration. Existing equipment was removed and replaced with modern high-efficiency system, including proper ductwork connections and exhaust/intake venting routed through dual white PVC pipes to ensure safe combustion air management and code-compliant installation.
Steven S.
Steven S. Checked in
Completed residential HVAC system replacement in basement utility area, installing new furnace unit with proper PVC venting configuration and sheet metal plenum integration. Existing equipment was removed and replaced with modern high-efficiency system, including proper ductwork connections and exhaust/intake venting routed through dual white PVC pipes to ensure safe combustion air management and code-compliant installation.
Milwaukee, WI 53222
# HVAC Service - Furnace

Performed routine furnace inspection and maintenance. Upon examination of the ductwork and internal components, identified accumulation of dirt, debris, and surface contamination on metal surfaces that required attention. Documented existing conditions through photographic evidence showing grime buildup and environmental deposits on accessible system components for maintenance records.
# HVAC Service - Furnace

Performed routine furnace inspection and maintenance. Upon examination of the ductwork and internal components, identified accumulation of dirt, debris, and surface contamination on metal surfaces that required attention. Documented existing conditions through photographic evidence showing grime buildup and environmental deposits on accessible system components for maintenance records.
Todd H.
Todd H. Checked in
# HVAC Service - Furnace Performed routine furnace inspection and maintenance. Upon examination of the ductwork and internal components, identified accumulation of dirt, debris, and surface contamination on metal surfaces that required attention. Documented existing conditions through photographic evidence showing grime buildup and environmental deposits on accessible system components for maintenance records.
Milwaukee, WI 53227
Completed HVAC system replacement in residential basement utility area. Installed new air handler unit with associated ductwork, condensate drainage system utilizing white PVC piping with proper fittings and elbows, and electrical connections including control box mounting. Configured flexible aluminum ductwork to floor register for proper air distribution throughout the residence.
Completed HVAC system replacement in residential basement utility area. Installed new air handler unit with associated ductwork, condensate drainage system utilizing white PVC piping with proper fittings and elbows, and electrical connections including control box mounting. Configured flexible aluminum ductwork to floor register for proper air distribution throughout the residence.
Rudy L.
Rudy L. Checked in
Completed HVAC system replacement in residential basement utility area. Installed new air handler unit with associated ductwork, condensate drainage system utilizing white PVC piping with proper fittings and elbows, and electrical connections including control box mounting. Configured flexible aluminum ductwork to floor register for proper air distribution throughout the residence.
Milwaukee, WI 53222
Milwaukee, WI - Completed scheduled HVAC maintenance inspection on gas furnace system. Performed visual inspection of internal components including blower motor assembly, control board, pressure switches, and electrical connections; verified all components were properly secured and wiring connections were intact. All safety devices and controls found to be in proper working condition with no immediate service needs identified at time of inspection.
Adriel H.
Adriel H. Checked in
Completed scheduled HVAC maintenance inspection on gas furnace system. Performed visual inspection of internal components including blower motor assembly, control board, pressure switches, and electrical connections; verified all components were properly secured and wiring connections were intact. All safety devices and controls found to be in proper working condition with no immediate service needs identified at time of inspection.
Milwaukee, WI 53221
# HVAC System Evaluation and Replacement Estimate

Conducted comprehensive assessment of existing residential HVAC system located in basement utility area. Evaluated current furnace/air handler unit with connected ductwork, including gray metal trunk lines showing dust accumulation and signs of age. Inspected Aprilaire humidifier unit mounted to furnace system and assessed its integration with existing equipment.

Examined water heater installation proximity to HVAC equipment to ensure adequate clearance requirements for replacement unit specifications. Documented existing PVC condensate drainage system, white PVC venting configuration, and black flexible ductwork connections. Assessed copper and brass piping connections at water heater and their potential impact on equipment access during replacement procedures.

Photographed existing equipment layout including Y-shaped ductwork connections extending to ceiling distribution system. Noted space constraints due to stored materials and p
# HVAC System Evaluation and Replacement Estimate

Conducted comprehensive assessment of existing residential HVAC system located in basement utility area. Evaluated current furnace/air handler unit with connected ductwork, including gray metal trunk lines showing dust accumulation and signs of age. Inspected Aprilaire humidifier unit mounted to furnace system and assessed its integration with existing equipment.

Examined water heater installation proximity to HVAC equipment to ensure adequate clearance requirements for replacement unit specifications. Documented existing PVC condensate drainage system, white PVC venting configuration, and black flexible ductwork connections. Assessed copper and brass piping connections at water heater and their potential impact on equipment access during replacement procedures.

Photographed existing equipment layout including Y-shaped ductwork connections extending to ceiling distribution system. Noted space constraints due to stored materials and p
Dave V.
Dave V. Checked in
# HVAC System Evaluation and Replacement Estimate Conducted comprehensive assessment of existing residential HVAC system located in basement utility area. Evaluated current furnace/air handler unit with connected ductwork, including gray metal trunk lines showing dust accumulation and signs of age. Inspected Aprilaire humidifier unit mounted to furnace system and assessed its integration with existing equipment. Examined water heater installation proximity to HVAC equipment to ensure adequate clearance requirements for replacement unit specifications. Documented existing PVC condensate drainage system, white PVC venting configuration, and black flexible ductwork connections. Assessed copper and brass piping connections at water heater and their potential impact on equipment access during replacement procedures. Photographed existing equipment layout including Y-shaped ductwork connections extending to ceiling distribution system. Noted space constraints due to stored materials and p
Milwaukee, WI 53221
# HVAC Tune-Up Completed

Performed comprehensive maintenance and diagnostic testing on residential HVAC system. Utilized Fieldpiece SC680 digital multimeter to measure electrical parameters throughout the unit, recording voltage reading of 26.9 volts at furnace control board and verifying proper electrical supply to heating components. Conducted amperage testing with clamp meter, measuring 154 amp reading at compressor motor to confirm proper current draw within manufacturer specifications.

Inspected all accessible mechanical components including compressor housing, refrigerant lines, and threaded pipe fittings for signs of wear or leakage. Verified all electrical connections were secure and functioning properly. Confirmed proper operation of heating and cooling systems with all readings within normal operating parameters. Unit tested and left in proper working condition.
# HVAC Tune-Up Completed

Performed comprehensive maintenance and diagnostic testing on residential HVAC system. Utilized Fieldpiece SC680 digital multimeter to measure electrical parameters throughout the unit, recording voltage reading of 26.9 volts at furnace control board and verifying proper electrical supply to heating components. Conducted amperage testing with clamp meter, measuring 154 amp reading at compressor motor to confirm proper current draw within manufacturer specifications.

Inspected all accessible mechanical components including compressor housing, refrigerant lines, and threaded pipe fittings for signs of wear or leakage. Verified all electrical connections were secure and functioning properly. Confirmed proper operation of heating and cooling systems with all readings within normal operating parameters. Unit tested and left in proper working condition.
Makinze C.
Makinze C. Checked in
# HVAC Tune-Up Completed Performed comprehensive maintenance and diagnostic testing on residential HVAC system. Utilized Fieldpiece SC680 digital multimeter to measure electrical parameters throughout the unit, recording voltage reading of 26.9 volts at furnace control board and verifying proper electrical supply to heating components. Conducted amperage testing with clamp meter, measuring 154 amp reading at compressor motor to confirm proper current draw within manufacturer specifications. Inspected all accessible mechanical components including compressor housing, refrigerant lines, and threaded pipe fittings for signs of wear or leakage. Verified all electrical connections were secure and functioning properly. Confirmed proper operation of heating and cooling systems with all readings within normal operating parameters. Unit tested and left in proper working condition.
Milwaukee, WI 53221
Conducted comprehensive HVAC system evaluation for indoor air quality estimate at residential property. Assessment included inspection of basement mechanical equipment featuring Rheem water heater and furnace unit with existing ductwork configuration, as well as exterior condensing unit with refrigerant line set and electrical disconnect. Documented current system layout and infrastructure to provide recommendations for IAQ enhancement solutions.
Conducted comprehensive HVAC system evaluation for indoor air quality estimate at residential property. Assessment included inspection of basement mechanical equipment featuring Rheem water heater and furnace unit with existing ductwork configuration, as well as exterior condensing unit with refrigerant line set and electrical disconnect. Documented current system layout and infrastructure to provide recommendations for IAQ enhancement solutions.
Michael Y.
Michael Y. Checked in
Conducted comprehensive HVAC system evaluation for indoor air quality estimate at residential property. Assessment included inspection of basement mechanical equipment featuring Rheem water heater and furnace unit with existing ductwork configuration, as well as exterior condensing unit with refrigerant line set and electrical disconnect. Documented current system layout and infrastructure to provide recommendations for IAQ enhancement solutions.
Milwaukee, WI 53227
Start Saving Today With

Membership Perks

Start Saving Today With

Membership Perks

What To Expect

Discover the Thielmann Heating, Cooling & Plumbing Difference

Fully Licensed & Insured

Our experts have the expertise and training to deliver the highest quality services every time.

Trusted Since 1929

We have served Southeastern Wisconsin for nearly a century, so we understand the needs of our community.

Financing Available

We offer various options from financing partners to help you meet your specific needs and budget.

5-Star Customer Service

Thielmann Heating, Cooling & Plumbing promises five-star customer service with every interaction.

Committed to Excellence

We complete jobs quickly without compromising our commitment to excellence.

Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every service we perform.

Fully Licensed & Insured

Our experts have the expertise and training to deliver the highest quality services every time.

Trusted Since 1929

We have served Southeastern Wisconsin for nearly a century, so we understand the needs of our community.

Financing Available

We offer various options from financing partners to help you meet your specific needs and budget.

5-Star Customer Service

Thielmann Heating, Cooling & Plumbing promises five-star customer service with every interaction.

Committed to Excellence

We complete jobs quickly without compromising our commitment to excellence.

Satisfaction Guarantee

Our team is dedicated to ensuring your 100% satisfaction with every service we perform.

Review Image
Our Reviews

See What Your Neighbors Are Saying

I liked my experience with them. The guys I spoke with prior to doing the work, the estimation phase , and the ones I spoke with after the work was completed had enough knowledge and suggestion to answer all my questions. I’m pleased with the job…

De'Angelo T.

De'Angelo T.

Excellent team from start to finish. They were all very respectful of our property, as they promptly and professionally went about their task of installing a new air conditioner system. The system works very well, so far. It is also much quieter than the previous 40+…

Jerry W.

Jerry W.

Thielmann did a tremendous job replacing our Carrier furnace. They worked with us to make sure we were able to get the right product and even worked with Carrier on the issues we were seeing on our old furnace as it was failing sooner than it…

J. K.

J. K.

I've been using Thielmann Group for all my heating and air conditioning since I built my house 23 years ago. They have been great in emergency service and regular maintenance service. On time and very friendly staff. Would, and have, recommend them to anyone!

Paul K.

Paul K.

I have used Thielmann for both installation of a new furnace + A/C recently, but also an install of a ductless mini-split unit six years ago. I fully trust their brands and recommendations. I can't say enough of about this company. Every single person from administrative…

Christin C.

Christin C.