Reliable Home Services In Franklin | Thielmann Heating And Cooling

Reliable Home Services in Franklin

At Thielmann Heating, Cooling, and Plumbing, we understand that your home is more than just a building; it’s where comfort, safety, and peace of mind come together. For over 90 years, we’ve proudly provided homeowners in Southeastern Wisconsin with reliable and innovative solutions tailored to their unique needs. From advanced heating systems to modern plumbing upgrades, we’re here to ensure your Franklin home runs efficiently all year long. Call us today at (262) 299-6197 and see why so many have turned to Thielmann’s home service solutions. 

Valuable Franklin Heating Solutions

Thielmann - Slinger - Install 18

Winters in Franklin are no match for our advanced heating services. Whether you need a new installation or expert maintenance, we have you covered with a wide range of reliable options:

  1. Heat Pumps: Embrace year-round comfort with versatile heat pump systems that provide both heating and cooling. These systems are an excellent choice for Franklin homeowners looking to reduce energy costs while maintaining a consistent indoor climate. Whether you need a new installation or a repair, our team ensures optimal performance tailored to your home’s needs.
  2. Boiler Services: Boilers are a popular choice for homes in Franklin due to their durability and efficiency. We offer comprehensive boiler services, including installations, repairs, and maintenance, ensuring your system operates safely and effectively for years to come.
  3. Furnace Maintenance and Replacement: Regular furnace maintenance is key to preventing breakdowns and extending the life of your system. If it’s time for an upgrade, our high-efficiency furnaces deliver powerful heating while reducing energy costs.
  4. Emergency Heating Repairs: A sudden heating issue can disrupt your life, especially during a Wisconsin winter. Our team is available to provide fast, effective repairs, restoring warmth to your home without delay.

Plumbing Services for Every Need

A dependable plumbing system is essential for a smooth-running household. At Thielmann Heating, Cooling, and Plumbing, we offer a comprehensive range of plumbing services to keep everything flowing smoothly and efficiently:

  • Tankless Water Heaters: Experience the luxury of endless hot water while saving energy with a tankless water heater. These compact and efficient systems are perfect for homes aiming to maximize utility and performance without taking up too much space.
  • Water Line Services: Leaks or aging water lines can cause significant issues over time. Using advanced detection tools, we locate and address problems quickly, ensuring uninterrupted water flow and preventing costly damage.
  • Modern Fixture Installations: Upgrade your bathroom or kitchen with state-of-the-art fixtures, including energy-efficient faucets, elegant sinks, and high-performance showerheads. Our installations are designed to enhance both style and functionality.
  • Sump Pump Solutions: Safeguard your basement from potential flooding with reliable sump pump services. From installations to routine maintenance, we ensure your pump is prepared to handle heavy rains and protect your home.

Efficient Cooling Services in Franklin

Thielmann - New Berlin - Install Truck 18

As the temperatures rise, having a dependable cooling system gives you the peace of mind you deserve. At Thielmann, we offer a comprehensive range of cooling solutions in Franklin designed to keep your home cool, comfortable, and efficient:

  • Central Air Conditioning: Upgrade to high-performance AC systems that deliver consistent cooling while lowering energy usage. Our technicians carefully assess your home’s size and layout to recommend the perfect system for your needs.
  • Zoned Cooling Solutions: Customize the temperature in different areas of your home with zoned cooling systems. These solutions improve comfort and energy efficiency by allowing you to cool specific rooms rather than the entire house.
  • Seasonal Maintenance: Regular maintenance is crucial for keeping your AC system running smoothly. Our tune-ups include inspections, cleaning, and adjustments to identify and address potential issues before they escalate.
  • Smart Thermostat Installation: Gain better control over your cooling system with smart thermostats. These devices allow you to adjust temperatures remotely, create schedules, and monitor energy usage, ensuring optimal comfort and efficiency.

Franklin Air Quality Specialists

Breathe easier with Thielmann’s advanced indoor air quality solutions. We provide tailored services to ensure the air inside your home is clean, refreshing, and safe for your family:

  • Air Filtration Systems: Remove allergens, dust, and airborne pollutants with high-performance air filters. These systems are particularly beneficial for households with pets or allergy sufferers.
  • Dehumidifiers and Humidifiers: Achieve the perfect balance of humidity in your home. Our dehumidifiers prevent mold and mildew during humid months, while our humidifiers combat dry air in winter, improving comfort and health.
  • Ventilation Upgrades: Proper ventilation is key to maintaining fresh air circulation throughout your home. We provide advanced solutions that reduce indoor pollutants and enhance overall air quality.
  • UV Light Purification: Eliminate harmful bacteria and viruses with UV purification systems. These devices work seamlessly with your HVAC system to create a safer living environment for your family.

Schedule Your Service in Franklin Today

Looking to improve your home’s comfort, energy efficiency, and safety? Contact Thielmann Heating, Cooling, and Plumbing today by calling (262) 299-6197 to arrange a service or consultation. Our experienced team is honored to provide Franklin homeowners with personalized solutions that exceed expectations.

Recent Jobs and Reviews in Franklin, WI

Job Locations and Reviews

Completed routine cooling season tune-up and system inspection as part of recurring family membership service. Performed comprehensive diagnostics using digital testing equipment and manifold gauges to verify refrigerant pressures, temperatures, and overall system performance, recording 76.6°F at outdoor unit. Inspected indoor air handler unit in basement, checked all connections, verified proper insulation on refrigerant lines, and confirmed equipment labels and safety information were intact and legible. All systems operating within normal parameters with no issues identified.
Completed routine cooling season tune-up and system inspection as part of recurring family membership service. Performed comprehensive diagnostics using digital testing equipment and manifold gauges to verify refrigerant pressures, temperatures, and overall system performance, recording 76.6°F at outdoor unit. Inspected indoor air handler unit in basement, checked all connections, verified proper insulation on refrigerant lines, and confirmed equipment labels and safety information were intact and legible. All systems operating within normal parameters with no issues identified.
Adriel H.
Adriel H. Checked in
Completed routine cooling season tune-up and system inspection as part of recurring family membership service. Performed comprehensive diagnostics using digital testing equipment and manifold gauges to verify refrigerant pressures, temperatures, and overall system performance, recording 76.6°F at outdoor unit. Inspected indoor air handler unit in basement, checked all connections, verified proper insulation on refrigerant lines, and confirmed equipment labels and safety information were intact and legible. All systems operating within normal parameters with no issues identified.
Franklin, WI 53132
Completed preventive maintenance tune-up on two HVAC systems. Inspected electrical components, contactors, and capacitors on outdoor condensing unit; verified proper wiring connections and cleaned debris from unit base. Performed system inspection on Lennox furnace in basement, checked all safety labels and operational specifications, and confirmed proper clearances around equipment.
Completed preventive maintenance tune-up on two HVAC systems. Inspected electrical components, contactors, and capacitors on outdoor condensing unit; verified proper wiring connections and cleaned debris from unit base. Performed system inspection on Lennox furnace in basement, checked all safety labels and operational specifications, and confirmed proper clearances around equipment.
Ron B.
Ron B. Checked in
Completed preventive maintenance tune-up on two HVAC systems. Inspected electrical components, contactors, and capacitors on outdoor condensing unit; verified proper wiring connections and cleaned debris from unit base. Performed system inspection on Lennox furnace in basement, checked all safety labels and operational specifications, and confirmed proper clearances around equipment.
FRANKLIN, WI 53132
Completed comprehensive furnace and air conditioning tune-up service on residential HVAC system. Performed thorough inspection of both heating and cooling components, including blower motor assembly, refrigerant lines, and copper tubing connections. All mechanical components were evaluated for proper operation and system efficiency was verified within manufacturer specifications.
Completed comprehensive furnace and air conditioning tune-up service on residential HVAC system. Performed thorough inspection of both heating and cooling components, including blower motor assembly, refrigerant lines, and copper tubing connections. All mechanical components were evaluated for proper operation and system efficiency was verified within manufacturer specifications.
Carlos R.
Carlos R. Checked in
Completed comprehensive furnace and air conditioning tune-up service on residential HVAC system. Performed thorough inspection of both heating and cooling components, including blower motor assembly, refrigerant lines, and copper tubing connections. All mechanical components were evaluated for proper operation and system efficiency was verified within manufacturer specifications.
Franklin, WI 53132
Completed comprehensive tune-up on furnace and air conditioning system. During inspection, discovered minor water accumulation on furnace unit and documented issue with photographs for customer records. Performed standard maintenance procedures including refrigerant pressure testing using manifold gauges on outdoor condensing unit, verified all mechanical connections and gas valve components, and inspected PVC condensate drain line and mounting hardware. All systems operational following service.
Completed comprehensive tune-up on furnace and air conditioning system. During inspection, discovered minor water accumulation on furnace unit and documented issue with photographs for customer records. Performed standard maintenance procedures including refrigerant pressure testing using manifold gauges on outdoor condensing unit, verified all mechanical connections and gas valve components, and inspected PVC condensate drain line and mounting hardware. All systems operational following service.
Adriel H.
Adriel H. Checked in
Completed comprehensive tune-up on furnace and air conditioning system. During inspection, discovered minor water accumulation on furnace unit and documented issue with photographs for customer records. Performed standard maintenance procedures including refrigerant pressure testing using manifold gauges on outdoor condensing unit, verified all mechanical connections and gas valve components, and inspected PVC condensate drain line and mounting hardware. All systems operational following service.
Franklin, WI 53132
Responded to service call for deteriorated air return vent. Upon inspection, found existing air return vent completely disintegrated and non-functional. Removed damaged vent assembly and installed new return air grille with proper mounting hardware and gasket seal to ensure adequate airflow and system performance. Verified secure installation and proper sealing to prevent air leakage.
Responded to service call for deteriorated air return vent. Upon inspection, found existing air return vent completely disintegrated and non-functional. Removed damaged vent assembly and installed new return air grille with proper mounting hardware and gasket seal to ensure adequate airflow and system performance. Verified secure installation and proper sealing to prevent air leakage.
Adriel H.
Adriel H. Checked in
Responded to service call for deteriorated air return vent. Upon inspection, found existing air return vent completely disintegrated and non-functional. Removed damaged vent assembly and installed new return air grille with proper mounting hardware and gasket seal to ensure adequate airflow and system performance. Verified secure installation and proper sealing to prevent air leakage.
Franklin, WI 53132
Franklin, WI - Completed preventative maintenance tune-up on residential air conditioning system. Performed comprehensive inspection of air handler unit, verified proper operation of all mechanical components, checked refrigerant lines and condensate drain system for proper function and secure mounting. All equipment found operating within normal parameters with no issues identified.
Adriel H.
Adriel H. Checked in
Completed preventative maintenance tune-up on residential air conditioning system. Performed comprehensive inspection of air handler unit, verified proper operation of all mechanical components, checked refrigerant lines and condensate drain system for proper function and secure mounting. All equipment found operating within normal parameters with no issues identified.
Franklin, WI 53132
Completed comprehensive tune-up service on both furnace and air conditioning systems as requested. Performed standard maintenance procedures including inspection of outdoor condenser unit, verification of refrigerant pressures using manifold gauges, and confirmed proper thermostat operation displaying 68° room temperature. All systems tested and operating within normal parameters.
Completed comprehensive tune-up service on both furnace and air conditioning systems as requested. Performed standard maintenance procedures including inspection of outdoor condenser unit, verification of refrigerant pressures using manifold gauges, and confirmed proper thermostat operation displaying 68° room temperature. All systems tested and operating within normal parameters.
Ron B.
Ron B. Checked in
Completed comprehensive tune-up service on both furnace and air conditioning systems as requested. Performed standard maintenance procedures including inspection of outdoor condenser unit, verification of refrigerant pressures using manifold gauges, and confirmed proper thermostat operation displaying 68° room temperature. All systems tested and operating within normal parameters.
Franklin, WI 53132
Conducted comprehensive HVAC system evaluation for non-functional air conditioning unit and existing furnace installation. Assessed current equipment condition, including dark gray furnace unit with associated PVC venting and ductwork configuration in unfinished basement mechanical room, as well as attic-mounted duct system components. Documented existing system specifications, reviewed equipment age and efficiency ratings, and provided replacement estimate options for complete HVAC system upgrade to restore cooling functionality and optimize heating performance.
Conducted comprehensive HVAC system evaluation for non-functional air conditioning unit and existing furnace installation. Assessed current equipment condition, including dark gray furnace unit with associated PVC venting and ductwork configuration in unfinished basement mechanical room, as well as attic-mounted duct system components. Documented existing system specifications, reviewed equipment age and efficiency ratings, and provided replacement estimate options for complete HVAC system upgrade to restore cooling functionality and optimize heating performance.
Dave V.
Dave V. Checked in
Conducted comprehensive HVAC system evaluation for non-functional air conditioning unit and existing furnace installation. Assessed current equipment condition, including dark gray furnace unit with associated PVC venting and ductwork configuration in unfinished basement mechanical room, as well as attic-mounted duct system components. Documented existing system specifications, reviewed equipment age and efficiency ratings, and provided replacement estimate options for complete HVAC system upgrade to restore cooling functionality and optimize heating performance.
Franklin, WI 53132
Completed warranty replacement of secondary heat exchanger on residential HVAC unit. Disassembled existing unit, removed failed heat exchanger showing significant corrosion and buildup, and installed new replacement component. Reassembled unit, tested all connections and controls, and verified proper system operation before completing service call.
Completed warranty replacement of secondary heat exchanger on residential HVAC unit. Disassembled existing unit, removed failed heat exchanger showing significant corrosion and buildup, and installed new replacement component. Reassembled unit, tested all connections and controls, and verified proper system operation before completing service call.
Ron B.
Ron B. Checked in
Completed warranty replacement of secondary heat exchanger on residential HVAC unit. Disassembled existing unit, removed failed heat exchanger showing significant corrosion and buildup, and installed new replacement component. Reassembled unit, tested all connections and controls, and verified proper system operation before completing service call.
FRANKLIN, WI 53132
Completed full HVAC system installation including new Lennox air conditioning condenser unit and evaporator coil. Equipment was picked up from Lennox supply house and installed on concrete pad with proper leveling. Connected refrigerant lines, completed electrical wiring, performed system startup, and charged unit to manufacturer specifications using manifold gauges. System tested and operating within normal parameters.
Completed full HVAC system installation including new Lennox air conditioning condenser unit and evaporator coil. Equipment was picked up from Lennox supply house and installed on concrete pad with proper leveling. Connected refrigerant lines, completed electrical wiring, performed system startup, and charged unit to manufacturer specifications using manifold gauges. System tested and operating within normal parameters.
CJ K.
CJ K. Checked in
Completed full HVAC system installation including new Lennox air conditioning condenser unit and evaporator coil. Equipment was picked up from Lennox supply house and installed on concrete pad with proper leveling. Connected refrigerant lines, completed electrical wiring, performed system startup, and charged unit to manufacturer specifications using manifold gauges. System tested and operating within normal parameters.
Franklin, WI 53132
Responded to no cooling complaint on residential HVAC system over 10 years old. Upon inspection, identified refrigerant leak at brass flare fitting connection, evidenced by visible corrosion and wear on component. Replaced defective fitting, pressure tested system, recharged refrigerant to manufacturer specifications, and verified proper cooling operation before departure.
Responded to no cooling complaint on residential HVAC system over 10 years old. Upon inspection, identified refrigerant leak at brass flare fitting connection, evidenced by visible corrosion and wear on component. Replaced defective fitting, pressure tested system, recharged refrigerant to manufacturer specifications, and verified proper cooling operation before departure.
Makinze C.
Makinze C. Checked in
Responded to no cooling complaint on residential HVAC system over 10 years old. Upon inspection, identified refrigerant leak at brass flare fitting connection, evidenced by visible corrosion and wear on component. Replaced defective fitting, pressure tested system, recharged refrigerant to manufacturer specifications, and verified proper cooling operation before departure.
FRANKLIN, WI 53132
Responded to emergency service call for newly installed AC system experiencing issues. Evaluated electrical panel and ductwork installation in basement area. Refunded and replaced defective capacitor on new HVAC equipment to restore proper system operation.
Responded to emergency service call for newly installed AC system experiencing issues. Evaluated electrical panel and ductwork installation in basement area. Refunded and replaced defective capacitor on new HVAC equipment to restore proper system operation.
Jason G.
Jason G. Checked in
Responded to emergency service call for newly installed AC system experiencing issues. Evaluated electrical panel and ductwork installation in basement area. Refunded and replaced defective capacitor on new HVAC equipment to restore proper system operation.
Franklin, WI 53132
Responded to no cooling call with unit running continuously and indoor temperature at 76-78°F. Performed diagnostic testing using digital multimeter on HVAC system components and measured supply air temperature at 58°F at the register, indicating insufficient cooling capacity. Inspected electrical connections, capacitor, and compressor wiring during troubleshooting process to identify cause of inadequate system performance.
Responded to no cooling call with unit running continuously and indoor temperature at 76-78°F. Performed diagnostic testing using digital multimeter on HVAC system components and measured supply air temperature at 58°F at the register, indicating insufficient cooling capacity. Inspected electrical connections, capacitor, and compressor wiring during troubleshooting process to identify cause of inadequate system performance.
Makinze C.
Makinze C. Checked in
Responded to no cooling call with unit running continuously and indoor temperature at 76-78°F. Performed diagnostic testing using digital multimeter on HVAC system components and measured supply air temperature at 58°F at the register, indicating insufficient cooling capacity. Inspected electrical connections, capacitor, and compressor wiring during troubleshooting process to identify cause of inadequate system performance.
Franklin, WI 53132
Completed prepaid furnace tune-up and air conditioning tune-up for returning seasonal resident. Performed comprehensive heating and cooling system maintenance as part of recurring membership service, including electrical testing and temperature diagnostics on both units. All systems tested and verified operational with meter readings documented at supply ductwork showing 105.4°F heating output.
Completed prepaid furnace tune-up and air conditioning tune-up for returning seasonal resident. Performed comprehensive heating and cooling system maintenance as part of recurring membership service, including electrical testing and temperature diagnostics on both units. All systems tested and verified operational with meter readings documented at supply ductwork showing 105.4°F heating output.
Carlos R.
Carlos R. Checked in
Completed prepaid furnace tune-up and air conditioning tune-up for returning seasonal resident. Performed comprehensive heating and cooling system maintenance as part of recurring membership service, including electrical testing and temperature diagnostics on both units. All systems tested and verified operational with meter readings documented at supply ductwork showing 105.4°F heating output.
Franklin, WI 53132
Completed routine heating maintenance visit as part of recurring membership agreement. Inspected outdoor condensing unit, verified proper operation, and documented system temperatures with readings showing 474°F at heat source. Unit operating within normal parameters with no immediate repairs required.
Completed routine heating maintenance visit as part of recurring membership agreement. Inspected outdoor condensing unit, verified proper operation, and documented system temperatures with readings showing 474°F at heat source. Unit operating within normal parameters with no immediate repairs required.
Carlos R.
Carlos R. Checked in
Completed routine heating maintenance visit as part of recurring membership agreement. Inspected outdoor condensing unit, verified proper operation, and documented system temperatures with readings showing 474°F at heat source. Unit operating within normal parameters with no immediate repairs required.
Franklin, WI 53132
Completed installation of new air conditioning system with evaporator coil in residential basement utility area. System includes new air handler unit positioned vertically with proper clearances for maintenance access, connected to existing ductwork via flexible aluminum ducting with appropriate elbow configurations. All refrigerant lines, electrical connections, and condensate drainage installed to manufacturer specifications and local code requirements.
Completed installation of new air conditioning system with evaporator coil in residential basement utility area. System includes new air handler unit positioned vertically with proper clearances for maintenance access, connected to existing ductwork via flexible aluminum ducting with appropriate elbow configurations. All refrigerant lines, electrical connections, and condensate drainage installed to manufacturer specifications and local code requirements.
Juan C.
Juan C. Checked in
Completed installation of new air conditioning system with evaporator coil in residential basement utility area. System includes new air handler unit positioned vertically with proper clearances for maintenance access, connected to existing ductwork via flexible aluminum ducting with appropriate elbow configurations. All refrigerant lines, electrical connections, and condensate drainage installed to manufacturer specifications and local code requirements.
FRANKLIN, WI 53132
Conducted on-site evaluation for air conditioning system replacement at residential property. Assessed existing Lennox HVAC equipment located in basement mechanical room, including furnace/air handler unit and associated ductwork components. Documented current system configuration, equipment specifications, and installation conditions through photographic documentation to provide comprehensive replacement estimate for non-operational cooling system.
Conducted on-site evaluation for air conditioning system replacement at residential property. Assessed existing Lennox HVAC equipment located in basement mechanical room, including furnace/air handler unit and associated ductwork components. Documented current system configuration, equipment specifications, and installation conditions through photographic documentation to provide comprehensive replacement estimate for non-operational cooling system.
Jason G.
Jason G. Checked in
Conducted on-site evaluation for air conditioning system replacement at residential property. Assessed existing Lennox HVAC equipment located in basement mechanical room, including furnace/air handler unit and associated ductwork components. Documented current system configuration, equipment specifications, and installation conditions through photographic documentation to provide comprehensive replacement estimate for non-operational cooling system.
FRANKLIN, WI 53132
Completed scheduled cooling system maintenance visit as part of prepaid membership program. Performed comprehensive AC tune-up on residential split system, including pressure and temperature diagnostics using manifold gauge set at outdoor condenser unit. Inspected Carrier furnace and indoor air handler components, verified proper operation of all system controls, and documented equipment condition with photographic records. All systems operating within manufacturer specifications.
Completed scheduled cooling system maintenance visit as part of prepaid membership program. Performed comprehensive AC tune-up on residential split system, including pressure and temperature diagnostics using manifold gauge set at outdoor condenser unit. Inspected Carrier furnace and indoor air handler components, verified proper operation of all system controls, and documented equipment condition with photographic records. All systems operating within manufacturer specifications.
Adriel H.
Adriel H. Checked in
Completed scheduled cooling system maintenance visit as part of prepaid membership program. Performed comprehensive AC tune-up on residential split system, including pressure and temperature diagnostics using manifold gauge set at outdoor condenser unit. Inspected Carrier furnace and indoor air handler components, verified proper operation of all system controls, and documented equipment condition with photographic records. All systems operating within manufacturer specifications.
FRANKLIN, WI 53132
Responded to no cooling complaint on Armstrong Air unit. Upon arrival, found system short cycling and unable to maintain setpoint temperature. Inspected outdoor condensing unit and found equipment in good physical condition with no visible damage. Replaced dirty air filters with new filters to restore proper airflow through the system, which was contributing to the cooling issue and premature system shutdown due to restricted airflow and potential safety limit activation.
Responded to no cooling complaint on Armstrong Air unit. Upon arrival, found system short cycling and unable to maintain setpoint temperature. Inspected outdoor condensing unit and found equipment in good physical condition with no visible damage. Replaced dirty air filters with new filters to restore proper airflow through the system, which was contributing to the cooling issue and premature system shutdown due to restricted airflow and potential safety limit activation.
Carlos R.
Carlos R. Checked in
Responded to no cooling complaint on Armstrong Air unit. Upon arrival, found system short cycling and unable to maintain setpoint temperature. Inspected outdoor condensing unit and found equipment in good physical condition with no visible damage. Replaced dirty air filters with new filters to restore proper airflow through the system, which was contributing to the cooling issue and premature system shutdown due to restricted airflow and potential safety limit activation.
FRANKLIN, WI 53132
Responded to no cooling complaint on air conditioning system installed approximately one year prior. Upon arrival, confirmed indoor fan operation but compressor not engaging. Connected manifold gauge set to service ports and performed system diagnostics. Verified proper line pressures and determined cooling function failure, identifying cause and provided customer with repair options for restoring full system operation.
Responded to no cooling complaint on air conditioning system installed approximately one year prior. Upon arrival, confirmed indoor fan operation but compressor not engaging. Connected manifold gauge set to service ports and performed system diagnostics. Verified proper line pressures and determined cooling function failure, identifying cause and provided customer with repair options for restoring full system operation.
Adriel H.
Adriel H. Checked in
Responded to no cooling complaint on air conditioning system installed approximately one year prior. Upon arrival, confirmed indoor fan operation but compressor not engaging. Connected manifold gauge set to service ports and performed system diagnostics. Verified proper line pressures and determined cooling function failure, identifying cause and provided customer with repair options for restoring full system operation.
Franklin, WI 53132
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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.