Heating, Cooling, And Plumbing Repair Services In Menomonee Falls, Wisconsin

Heating, Cooling, and Plumbing Repair Services in Menomonee Falls, Wisconsin

Your Local Heating and Cooling Experts since 1929

Our team of professionals are available to provide superior heating, HVAC, and air conditioning services for homes and commercial properties in Menomonee Falls, Wisconsin. Our number one priority is customer satisfaction, and we go above and beyond to ensure you receive the best service possible.

With our team of Nate-certified technicians and friendly office staff, we are dedicated to delivering exceptional results. We understand the importance of a comfortable home or workplace, and that is why we are committed to providing reliable heating and cooling solutions all year round.

For HVAC services in Menomonee Falls, look no further than The Thielmann Group. Contact us online or call (262) 299-6197 to get started.

Menomonee Falls Heating and Air Conditioning Company

Looking for reliable heating and cooling services in Menomonee Falls? Look no further than our team! With a strong reputation since 1929, our expert staff ensures top-notch equipment installation and repair. We take pride in offering the best heating products, installation, and services in Waukesha County.

We offer various types of heating and HVAC options, including:

Our factory-trained and NATE-certified professionals are ready to get the job done right. Rest assured, we’ve got you covered with prompt furnace repair services in case of any heating problems. Our NATE-certified specialists are available 24/7 to service and repair all makes and models. Stay warm during harsh Wisconsin winters – reach out to us for all your heating or furnace repair needs in Menomonee Falls, WI.

Thielmann - New Berlin - Install Truck 24

Air Conditioner Repair and Installation Services

Looking for a new air conditioning system? Look no further! We have the perfect solution to keep you cool and suit your budget. Our experienced team will ensure a flawless installation, perfectly sized to your space. Our technicians are factory trained and NATE-certified, equipped with years of knowledge to install your new central air or ductless system with superior workmanship. Stay cool with confidence!

We work on all types of cooling systems, including:

  • Air conditioners: We can work on all models of air conditioning systems for residential and commercial properties.
  • Heat pumps: We can repair, replace, or maintain energy-efficient heat pumps that deliver warm air inside and outside the home.
  • Ductless mini-splits: We can service ductless HVAC units that provide total climate control for single rooms.

Duct Cleaning

The ductwork in your HVAC system plays a vital role, acting as the lungs of your home. Every bit of heated or cooled air flows through it, ensuring comfort and well-being. At The Thielmann Group we take pride in ensuring clean and healthy indoor environments for homes and businesses.

From humidity control and air purification to duct cleaning and more, we offer solutions to improve your indoor air quality. The ductwork in your HVAC system plays a vital role, acting as the lungs of your home. Every bit of heated or cooled air flows through it, ensuring comfort and well-being.

  • Air purifiers
  • Humidifiers
  • Dehumidifiers

Air Conditioning and HVAC Services in Menomonee Falls, Wisconsin

Why Choose The Thielmann Group

Since 1929, our team has been the go-to choice for top-quality residential and commercial HVAC services in Menomonee Falls and beyond. Our NATE-certified technicians can service all brands, provide 24/7 emergency care, and more. Rest assured, we have you covered for all your HVAC needs! Plus, we offer upfront pricing, financing options, special deals, and a job well done.

Contact us online or call (262) 299-6197 to schedule the HVAC services you need.

Read Reviews by Our Customers

Recent Jobs and Reviews in Menomonee Falls, WI

Menomonee Falls, WI at a glance

Thielmann Heating, Cooling & Plumbing has completed 20 jobs in Menomonee Falls, WI between March 2026 and May 2026.

The most recent job was on May 4, 2026.

Thielmann Heating, Cooling & Plumbing has completed 292 jobs in Menomonee Falls, WI in the last 12 months.

Job Locations and Reviews

Completed AC spring start-up service with system diagnostics and temperature verification. Supply air temperature measured at 53.3°F and return air at 69.0°F, confirming proper system operation and adequate temperature differential for cooling mode. All equipment functioning within normal parameters.
Completed AC spring start-up service with system diagnostics and temperature verification. Supply air temperature measured at 53.3°F and return air at 69.0°F, confirming proper system operation and adequate temperature differential for cooling mode. All equipment functioning within normal parameters.
Nick K.
Nick K. Checked in
Completed AC spring start-up service with system diagnostics and temperature verification. Supply air temperature measured at 53.3°F and return air at 69.0°F, confirming proper system operation and adequate temperature differential for cooling mode. All equipment functioning within normal parameters.
Menomonee Falls, WI 53051
Menomonee Falls, WI - Performed diagnostic inspection and operational checkout of recently installed battery backup sump pump system in coordination with JMI technician. Verified proper installation of backup pump components, PVC discharge piping, electrical connections, and battery backup functionality within existing sump pit. All system components confirmed to be operating within normal parameters.
Kyle L.
Kyle L. Checked in
Performed diagnostic inspection and operational checkout of recently installed battery backup sump pump system in coordination with JMI technician. Verified proper installation of backup pump components, PVC discharge piping, electrical connections, and battery backup functionality within existing sump pit. All system components confirmed to be operating within normal parameters.
Menomonee Falls, WI 53051
Completed scheduled heating system maintenance visit as part of recurring membership agreement. Performed comprehensive inspection of HVAC equipment, including examination of valve cores and system components. Documented equipment condition with photos showing heating unit with copper-colored heat exchanger element and associated ductwork infrastructure.
Completed scheduled heating system maintenance visit as part of recurring membership agreement. Performed comprehensive inspection of HVAC equipment, including examination of valve cores and system components. Documented equipment condition with photos showing heating unit with copper-colored heat exchanger element and associated ductwork infrastructure.
Makinze C.
Makinze C. Checked in
Completed scheduled heating system maintenance visit as part of recurring membership agreement. Performed comprehensive inspection of HVAC equipment, including examination of valve cores and system components. Documented equipment condition with photos showing heating unit with copper-colored heat exchanger element and associated ductwork infrastructure.
Menomonee Falls, WI 53051
Completed comprehensive HVAC tune-up and system diagnostics on residential gas furnace unit. Performed detailed inspection of all internal components including blower motor assembly, gas valve, burner assembly, and control board. Utilized Testo 510 II diagnostic meter to measure and verify system pressures and temperatures, confirming optimal operating parameters. All electrical connections, wiring harnesses, and safety controls were inspected and found to be secure and functioning properly. System tested and verified to be operating within manufacturer specifications.
Completed comprehensive HVAC tune-up and system diagnostics on residential gas furnace unit. Performed detailed inspection of all internal components including blower motor assembly, gas valve, burner assembly, and control board. Utilized Testo 510 II diagnostic meter to measure and verify system pressures and temperatures, confirming optimal operating parameters. All electrical connections, wiring harnesses, and safety controls were inspected and found to be secure and functioning properly. System tested and verified to be operating within manufacturer specifications.
Nick K.
Nick K. Checked in
Completed comprehensive HVAC tune-up and system diagnostics on residential gas furnace unit. Performed detailed inspection of all internal components including blower motor assembly, gas valve, burner assembly, and control board. Utilized Testo 510 II diagnostic meter to measure and verify system pressures and temperatures, confirming optimal operating parameters. All electrical connections, wiring harnesses, and safety controls were inspected and found to be secure and functioning properly. System tested and verified to be operating within manufacturer specifications.
MENOMONEE FALLS, WI 53051
# HVAC Install - Complete System

Successfully completed full HVAC system installation in residential basement utility room. Installed new high-efficiency furnace unit with proper electrical connections and internal wiring configuration. Mounted dual white PVC intake and exhaust vent pipes vertically from furnace top with secure black rubber collars and mounting brackets to ensure proper combustion air supply and flue gas venting. Integrated condensate pump system with visible shut-off valve for proper drainage management. Connected all electrical components including control board, colored wire connections, and copper terminations per manufacturer specifications. Installed metallic ductwork plenum system with proper transitions for optimal airflow distribution throughout residence. Verified all manufacturer rating plates and informational labels properly affixed to equipment. Ensured installation meets current building codes and safety standards with clean, professional finish on pain
# HVAC Install - Complete System

Successfully completed full HVAC system installation in residential basement utility room. Installed new high-efficiency furnace unit with proper electrical connections and internal wiring configuration. Mounted dual white PVC intake and exhaust vent pipes vertically from furnace top with secure black rubber collars and mounting brackets to ensure proper combustion air supply and flue gas venting. Integrated condensate pump system with visible shut-off valve for proper drainage management. Connected all electrical components including control board, colored wire connections, and copper terminations per manufacturer specifications. Installed metallic ductwork plenum system with proper transitions for optimal airflow distribution throughout residence. Verified all manufacturer rating plates and informational labels properly affixed to equipment. Ensured installation meets current building codes and safety standards with clean, professional finish on pain
Branden B.
Branden B. Checked in
# HVAC Install - Complete System Successfully completed full HVAC system installation in residential basement utility room. Installed new high-efficiency furnace unit with proper electrical connections and internal wiring configuration. Mounted dual white PVC intake and exhaust vent pipes vertically from furnace top with secure black rubber collars and mounting brackets to ensure proper combustion air supply and flue gas venting. Integrated condensate pump system with visible shut-off valve for proper drainage management. Connected all electrical components including control board, colored wire connections, and copper terminations per manufacturer specifications. Installed metallic ductwork plenum system with proper transitions for optimal airflow distribution throughout residence. Verified all manufacturer rating plates and informational labels properly affixed to equipment. Ensured installation meets current building codes and safety standards with clean, professional finish on pain
Menomonee Falls, WI 53051
Completed HVAC system installation and startup in residential mechanical room. Installed Goodman furnace/air handler unit with proper PVC condensate drainage lines, metallic supply ductwork, and secondary air handling equipment. Verified all electrical connections, tested system operation, confirmed proper airflow through insulated ductwork penetrations, and ensured all equipment met manufacturer specifications for safe and efficient operation.
Completed HVAC system installation and startup in residential mechanical room. Installed Goodman furnace/air handler unit with proper PVC condensate drainage lines, metallic supply ductwork, and secondary air handling equipment. Verified all electrical connections, tested system operation, confirmed proper airflow through insulated ductwork penetrations, and ensured all equipment met manufacturer specifications for safe and efficient operation.
Jacob A.
Jacob A. Checked in
Completed HVAC system installation and startup in residential mechanical room. Installed Goodman furnace/air handler unit with proper PVC condensate drainage lines, metallic supply ductwork, and secondary air handling equipment. Verified all electrical connections, tested system operation, confirmed proper airflow through insulated ductwork penetrations, and ensured all equipment met manufacturer specifications for safe and efficient operation.
Menomonee Falls, WI 53051
Completed preventative maintenance tune-up on Lennox outdoor condensing unit. Utilized manifold gauge set to check refrigerant pressures and verify system operating within manufacturer specifications. Unit found in good working condition with proper refrigerant charge and all components functioning normally.
Completed preventative maintenance tune-up on Lennox outdoor condensing unit. Utilized manifold gauge set to check refrigerant pressures and verify system operating within manufacturer specifications. Unit found in good working condition with proper refrigerant charge and all components functioning normally.
Nicholas H.
Nicholas H. Checked in
Completed preventative maintenance tune-up on Lennox outdoor condensing unit. Utilized manifold gauge set to check refrigerant pressures and verify system operating within manufacturer specifications. Unit found in good working condition with proper refrigerant charge and all components functioning normally.
Menomonee Falls, WI 53051
Performed comprehensive inspection and maintenance of residential sump pump system. Verified proper operation of pump mechanism, checked all PVC discharge piping including Schedule 40 connections and couplings for secure fit and proper drainage flow. Confirmed electrical connections were secure and functioning correctly, inspected basin for debris accumulation and water level operation. All components found to be in working order with adequate discharge capacity for basement water management needs.
Performed comprehensive inspection and maintenance of residential sump pump system. Verified proper operation of pump mechanism, checked all PVC discharge piping including Schedule 40 connections and couplings for secure fit and proper drainage flow. Confirmed electrical connections were secure and functioning correctly, inspected basin for debris accumulation and water level operation. All components found to be in working order with adequate discharge capacity for basement water management needs.
Gabriel S.
Gabriel S. Checked in
Performed comprehensive inspection and maintenance of residential sump pump system. Verified proper operation of pump mechanism, checked all PVC discharge piping including Schedule 40 connections and couplings for secure fit and proper drainage flow. Confirmed electrical connections were secure and functioning correctly, inspected basin for debris accumulation and water level operation. All components found to be in working order with adequate discharge capacity for basement water management needs.
Menomonee Falls, WI 53051
Performed warranty inspection on Carrier furnace system. Accessed internal components to verify proper operation of blower motor assembly, pressure switch, and electrical connections. All components found to be functioning within manufacturer specifications with no deficiencies noted at time of service.
Performed warranty inspection on Carrier furnace system. Accessed internal components to verify proper operation of blower motor assembly, pressure switch, and electrical connections. All components found to be functioning within manufacturer specifications with no deficiencies noted at time of service.
Donovan S.
Donovan S. Checked in
Performed warranty inspection on Carrier furnace system. Accessed internal components to verify proper operation of blower motor assembly, pressure switch, and electrical connections. All components found to be functioning within manufacturer specifications with no deficiencies noted at time of service.
Menomonee Falls, WI 53051
Completed HVAC estimate for furnace and air handler replacement in residential utility space. Assessed existing gray metal furnace unit with visible service history and documentation, along with overhead air handler installation featuring condensate management system. Evaluated current plumbing connections including copper lines with shutoff valves, PVC drainage configuration, and electrical infrastructure to provide comprehensive replacement recommendations for updated high-efficiency equipment.
Completed HVAC estimate for furnace and air handler replacement in residential utility space. Assessed existing gray metal furnace unit with visible service history and documentation, along with overhead air handler installation featuring condensate management system. Evaluated current plumbing connections including copper lines with shutoff valves, PVC drainage configuration, and electrical infrastructure to provide comprehensive replacement recommendations for updated high-efficiency equipment.
Steven S.
Steven S. Checked in
Completed HVAC estimate for furnace and air handler replacement in residential utility space. Assessed existing gray metal furnace unit with visible service history and documentation, along with overhead air handler installation featuring condensate management system. Evaluated current plumbing connections including copper lines with shutoff valves, PVC drainage configuration, and electrical infrastructure to provide comprehensive replacement recommendations for updated high-efficiency equipment.
MENOMONEE FALLS, WI 53051
Menomonee Falls, WI - Completed scheduled preventive maintenance inspection on residential gas furnace system. Performed comprehensive system evaluation including inspection of blower motor assembly, electrical connections, condensate drain lines, and PVC venting configuration. All components found operating within normal parameters, access panel secured, and system returned to service.
Nicholas H.
Nicholas H. Checked in
Completed scheduled preventive maintenance inspection on residential gas furnace system. Performed comprehensive system evaluation including inspection of blower motor assembly, electrical connections, condensate drain lines, and PVC venting configuration. All components found operating within normal parameters, access panel secured, and system returned to service.
Menomonee Falls, WI 53051
Menomonee Falls, WI - Conducted comprehensive assessment of existing sump pump system located in below-grade concrete basin. Inspected submersible pump unit, discharge piping configuration with PVC components, check valve assembly, and electrical connections including terminal posts and wiring. Documented current operational status and environmental conditions of installation including basin integrity, water levels, and overall system functionality to provide detailed estimate for potential replacement or repair recommendations.
Kyle L.
Kyle L. Checked in
Conducted comprehensive assessment of existing sump pump system located in below-grade concrete basin. Inspected submersible pump unit, discharge piping configuration with PVC components, check valve assembly, and electrical connections including terminal posts and wiring. Documented current operational status and environmental conditions of installation including basin integrity, water levels, and overall system functionality to provide detailed estimate for potential replacement or repair recommendations.
Menomonee Falls, WI 53051
Performed routine inspection and maintenance on residential furnace system. Documented interior ductwork connections and metal plenum assembly, verifying proper seam integrity and structural soundness of HVAC components. All accessible areas of the heating system were visually inspected and found to be in satisfactory operating condition.
Performed routine inspection and maintenance on residential furnace system. Documented interior ductwork connections and metal plenum assembly, verifying proper seam integrity and structural soundness of HVAC components. All accessible areas of the heating system were visually inspected and found to be in satisfactory operating condition.
Nick K.
Nick K. Checked in
Performed routine inspection and maintenance on residential furnace system. Documented interior ductwork connections and metal plenum assembly, verifying proper seam integrity and structural soundness of HVAC components. All accessible areas of the heating system were visually inspected and found to be in satisfactory operating condition.
Menomonee Falls, WI 53051
# Plumbing Service - Faucet

Installed new kitchen sink faucet assembly with pull-out spray head and brushed metal finish in double-basin sink configuration. Connected dishwasher drain hose to proper drainage point and verified all plumbing connections for leaks and proper water flow.
# Plumbing Service - Faucet

Installed new kitchen sink faucet assembly with pull-out spray head and brushed metal finish in double-basin sink configuration. Connected dishwasher drain hose to proper drainage point and verified all plumbing connections for leaks and proper water flow.
Kyle L.
Kyle L. Checked in
# Plumbing Service - Faucet Installed new kitchen sink faucet assembly with pull-out spray head and brushed metal finish in double-basin sink configuration. Connected dishwasher drain hose to proper drainage point and verified all plumbing connections for leaks and proper water flow.
Menomonee Falls, WI 53051
Completed HVAC system assessment in basement mechanical room for equipment replacement estimate. Documented existing furnace/air handler unit, water heater, ductwork configuration, PVC ventilation system, and copper piping layout to provide comprehensive replacement options for aging heating and cooling equipment.
Completed HVAC system assessment in basement mechanical room for equipment replacement estimate. Documented existing furnace/air handler unit, water heater, ductwork configuration, PVC ventilation system, and copper piping layout to provide comprehensive replacement options for aging heating and cooling equipment.
Jason G.
Jason G. Checked in
Completed HVAC system assessment in basement mechanical room for equipment replacement estimate. Documented existing furnace/air handler unit, water heater, ductwork configuration, PVC ventilation system, and copper piping layout to provide comprehensive replacement options for aging heating and cooling equipment.
Menomonee Falls, WI 53051
Completed comprehensive duct cleaning service for residential HVAC system in basement mechanical room. Cleaned and sanitized all accessible ductwork including main supply trunk lines, return air ducts, and branch runs connected to gray furnace unit and associated air handling equipment. Removed accumulated dust, debris, and contaminants from PVC ductwork system using specialized rotary brush equipment and high-powered vacuum with HEPA filtration to improve indoor air quality and system efficiency.
Completed comprehensive duct cleaning service for residential HVAC system in basement mechanical room. Cleaned and sanitized all accessible ductwork including main supply trunk lines, return air ducts, and branch runs connected to gray furnace unit and associated air handling equipment. Removed accumulated dust, debris, and contaminants from PVC ductwork system using specialized rotary brush equipment and high-powered vacuum with HEPA filtration to improve indoor air quality and system efficiency.
Rudy L.
Rudy L. Checked in
Completed comprehensive duct cleaning service for residential HVAC system in basement mechanical room. Cleaned and sanitized all accessible ductwork including main supply trunk lines, return air ducts, and branch runs connected to gray furnace unit and associated air handling equipment. Removed accumulated dust, debris, and contaminants from PVC ductwork system using specialized rotary brush equipment and high-powered vacuum with HEPA filtration to improve indoor air quality and system efficiency.
Menomonee Falls, WI 53051
Installed complete water treatment system in basement utility area, including water softener with programmable control valve and brine tank for salt storage. Connected system to existing copper plumbing infrastructure with proper shutoff valves, ensuring integration with water heater and utility sink. Tested all connections for proper operation and verified system settings for optimal water conditioning performance.
Installed complete water treatment system in basement utility area, including water softener with programmable control valve and brine tank for salt storage. Connected system to existing copper plumbing infrastructure with proper shutoff valves, ensuring integration with water heater and utility sink. Tested all connections for proper operation and verified system settings for optimal water conditioning performance.
Kyle L.
Kyle L. Checked in
Installed complete water treatment system in basement utility area, including water softener with programmable control valve and brine tank for salt storage. Connected system to existing copper plumbing infrastructure with proper shutoff valves, ensuring integration with water heater and utility sink. Tested all connections for proper operation and verified system settings for optimal water conditioning performance.
Menomonee Falls, WI 53051
Replaced failed blower motor assembly on HVAC system. Removed heavily soiled evaporator coil showing significant dust and debris accumulation that was restricting airflow and reducing system efficiency. Installed new motor, verified proper operation, and restored unit to normal function.
Replaced failed blower motor assembly on HVAC system. Removed heavily soiled evaporator coil showing significant dust and debris accumulation that was restricting airflow and reducing system efficiency. Installed new motor, verified proper operation, and restored unit to normal function.
Nick K.
Nick K. Checked in
Replaced failed blower motor assembly on HVAC system. Removed heavily soiled evaporator coil showing significant dust and debris accumulation that was restricting airflow and reducing system efficiency. Installed new motor, verified proper operation, and restored unit to normal function.
Menomonee Falls, WI 53051
# Plumbing Service Completed

Responded to service call for copper pipe system inspection and maintenance. Upon arrival, evaluated horizontal copper supply line installation showing signs of oxidation and corrosion with characteristic greenish patina formation on exterior surfaces. Examined brass circulation pump assembly mounted at pipe terminus with integrated valve components and verified operational status of unit.

Inspected pipe mounting brackets and wall anchoring system to ensure secure attachment to structural supports. Noted presence of expanding foam insulation material around pipe joints and connection points, applied to prevent heat loss and reduce condensation. Verified integrity of all brass fittings and compression joints along horizontal run.

Assessed condition of copper piping showing age-related discoloration and mineral deposit accumulation. Confirmed proper installation technique with appropriate support spacing and clearance from wall surface. Documented existing
# Plumbing Service Completed

Responded to service call for copper pipe system inspection and maintenance. Upon arrival, evaluated horizontal copper supply line installation showing signs of oxidation and corrosion with characteristic greenish patina formation on exterior surfaces. Examined brass circulation pump assembly mounted at pipe terminus with integrated valve components and verified operational status of unit.

Inspected pipe mounting brackets and wall anchoring system to ensure secure attachment to structural supports. Noted presence of expanding foam insulation material around pipe joints and connection points, applied to prevent heat loss and reduce condensation. Verified integrity of all brass fittings and compression joints along horizontal run.

Assessed condition of copper piping showing age-related discoloration and mineral deposit accumulation. Confirmed proper installation technique with appropriate support spacing and clearance from wall surface. Documented existing
Gabriel S.
Gabriel S. Checked in
# Plumbing Service Completed Responded to service call for copper pipe system inspection and maintenance. Upon arrival, evaluated horizontal copper supply line installation showing signs of oxidation and corrosion with characteristic greenish patina formation on exterior surfaces. Examined brass circulation pump assembly mounted at pipe terminus with integrated valve components and verified operational status of unit. Inspected pipe mounting brackets and wall anchoring system to ensure secure attachment to structural supports. Noted presence of expanding foam insulation material around pipe joints and connection points, applied to prevent heat loss and reduce condensation. Verified integrity of all brass fittings and compression joints along horizontal run. Assessed condition of copper piping showing age-related discoloration and mineral deposit accumulation. Confirmed proper installation technique with appropriate support spacing and clearance from wall surface. Documented existing
MENOMONEE FALLS, WI 53051
Menomonee Falls, WI - Responded to service call for furnace system requiring repair. Upon inspection, accessed internal components by removing furnace cabinet door to diagnose reported heating issue. Performed comprehensive evaluation of gas valve assembly, electrical connections, control board, and blower motor operation. Completed necessary repairs to restore proper system function, verified all safety controls, and confirmed unit returned to normal operating parameters before closing cabinet and concluding service.
Nick K.
Nick K. Checked in
Responded to service call for furnace system requiring repair. Upon inspection, accessed internal components by removing furnace cabinet door to diagnose reported heating issue. Performed comprehensive evaluation of gas valve assembly, electrical connections, control board, and blower motor operation. Completed necessary repairs to restore proper system function, verified all safety controls, and confirmed unit returned to normal operating parameters before closing cabinet and concluding service.
Menomonee Falls, WI 53051

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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.

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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.