Heating, Air Conditioning, And Plumbing Repair Services In West Bend, Wisconsin

Heating, Air Conditioning, and Plumbing Repair Services in West Bend, Wisconsin

Your Local Heating and Cooling Experts since 1929

Thielmann - Brookfield - House 4

The weather in West Bend can pose a challenge to maintaining home comfort. Whether the temperatures get extremely high or low, it’s important to ensure that your HVAC system can handle it.

Our team of professionals are available to help you with all your HVAC repair needs in the local West Bend, Wisconsin area. With over 90 years of experience, we can ensure that your systems are working efficiently so that you can enjoy comfortable temperatures in your home or business.

For HVAC and air quality services in West Bend, look no further than The Thielmann Group. Contact us online or call (262) 299-6197 to get started.

Heating Services

Looking for reliable heating solutions in West Bend? Look no further than The Thielmann Group. With our expert team and top-notch services, we guarantee the highest standards in equipment sizing and installation. Our heating products, including energy-efficient and quiet Lennox furnaces, ensure your peace of mind.

Our licensed technicians offer trustworthy HVAC and furnace repair services in West Bend, Wisconsin and will restore your heat promptly. We understand the urgency of “no heat” situations during harsh Wisconsin winters.

Our NATE-certified specialists are available 24/7 for emergencies, capable of servicing and repairing all makes and models. Contact us for all your heating or furnace repair needs in West Bend.

West Bend, Wisconsin Air Conditioning and HVAC Repair Services

Air Conditioner Repair and Installations

If you need a new air conditioning system for your home or business, we have the perfect solution to keep you cool and fit your budget. Our experienced team will ensure a flawless air conditioning installation and the system will be 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.

We work on all types of cooling systems, including:

  • Air conditionersWe can work on all models of air conditioning systems for residential and commercial properties.
  • Heat pumpsWe 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.

We proudly offer top-notch Lennox, Daikin, Carrier, Bryant and Mitsubishi air conditioning products, known for their industry-leading performance and energy efficiency. With these systems, you will stay comfortable during hot Southeastern Wisconsin summers while saving on energy bills.

Our technicians also offer air conditioning repair services and can work with you to replace damaged parts in your old system. Give us a call for all your air conditioning needs in West Bend.

Indoor Air Quality

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 HVAC repair solutions to improve your indoor air quality. Trust us to create a fresh and comfortable atmosphere for you and your loved ones.

  • Air purifiers
  • Humidifiers
  • Dehumidifiers

West Bend, Wisconsin Air Conditioning and HVAC Repair Services

West Bend, WI Plumbing Services You Can Rely On

When plumbing issues disrupt your day, Thielmann Heating, Cooling, and Plumbing provides dependable plumbing services in West Bend, WI. Our licensed plumbers handle everything from small repairs to full system replacements with precision and care. You get honest recommendations, upfront pricing, and quality results every time.

We repair leaky pipes, clogged drains, and fixtures that don’t want to work as they should, working to quickly prevent any further damage. If your water heater fails, our team can repair or replace it with an energy-efficient model that fits your home’s needs. We also install sump pumps and water treatment systems to keep your water clean and your basement dry.

Homeowners across West Bend trust Thielmann for reliable plumbing services that keep their homes running smoothly. We combine decades of experience with modern tools to ensure every job meets local codes and high standards of craftsmanship. Whether you need maintenance, emergency service, or a full upgrade, we’re ready to help.

Common plumbing services in West Bend include:

If your home in West Bend needs plumbing service, don’t wait until a small leak becomes a major problem. Call Thielmann Heating, Cooling, and Plumbing for fast, dependable help. Our technicians are available for routine maintenance and 24/7 emergency service to restore comfort and peace of mind.

Why Choose The Thielmann Group

Since 1929, our team has been the go-to choice for top-quality residential and commercial HVAC services in West Bend and beyond. Our NATE-certified technicians can service all brands, install Lennox-brand units, provide 24/7 emergency care, and more. Rest assured, we have you covered for all your HVAC needs! Plus, we offer upfront pricing, financing optionsspecial 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 West Bend, WI

Job Locations and Reviews

# HVAC Estimate - Mini Split

Conducted comprehensive site assessment for mini-split heat pump system installation in residential property. Evaluated two primary zones including dining/living area and master bedroom for optimal indoor unit placement and capacity requirements. Assessed existing electrical infrastructure, determined exterior wall penetration locations for refrigerant line sets, and identified suitable outdoor condenser placement. Provided detailed equipment specifications and installation scope for multi-zone ductless HVAC solution to replace existing baseboard heating system.
# HVAC Estimate - Mini Split

Conducted comprehensive site assessment for mini-split heat pump system installation in residential property. Evaluated two primary zones including dining/living area and master bedroom for optimal indoor unit placement and capacity requirements. Assessed existing electrical infrastructure, determined exterior wall penetration locations for refrigerant line sets, and identified suitable outdoor condenser placement. Provided detailed equipment specifications and installation scope for multi-zone ductless HVAC solution to replace existing baseboard heating system.
Steven S.
Steven S. Checked in
# HVAC Estimate - Mini Split Conducted comprehensive site assessment for mini-split heat pump system installation in residential property. Evaluated two primary zones including dining/living area and master bedroom for optimal indoor unit placement and capacity requirements. Assessed existing electrical infrastructure, determined exterior wall penetration locations for refrigerant line sets, and identified suitable outdoor condenser placement. Provided detailed equipment specifications and installation scope for multi-zone ductless HVAC solution to replace existing baseboard heating system.
West Bend, WI 53095
Completed HVAC estimate for system replacement in residential basement utility area. Assessed existing Rheem water heater installation with associated copper piping, electrical connections via junction box and flexible metallic conduit, and dual black vent pipes extending to ceiling. Evaluated secondary white HVAC unit with multiple copper pipe connections showing age-related oxidation, blue valve control point, flexible metallic ventilation duct, and associated wiring systems mounted on concrete block walls. Documented current equipment configuration, plumbing connections, electrical service, and venting arrangements to provide comprehensive replacement specifications and equipment sizing recommendations for complete system upgrade.
Completed HVAC estimate for system replacement in residential basement utility area. Assessed existing Rheem water heater installation with associated copper piping, electrical connections via junction box and flexible metallic conduit, and dual black vent pipes extending to ceiling. Evaluated secondary white HVAC unit with multiple copper pipe connections showing age-related oxidation, blue valve control point, flexible metallic ventilation duct, and associated wiring systems mounted on concrete block walls. Documented current equipment configuration, plumbing connections, electrical service, and venting arrangements to provide comprehensive replacement specifications and equipment sizing recommendations for complete system upgrade.
Jason G.
Jason G. Checked in
Completed HVAC estimate for system replacement in residential basement utility area. Assessed existing Rheem water heater installation with associated copper piping, electrical connections via junction box and flexible metallic conduit, and dual black vent pipes extending to ceiling. Evaluated secondary white HVAC unit with multiple copper pipe connections showing age-related oxidation, blue valve control point, flexible metallic ventilation duct, and associated wiring systems mounted on concrete block walls. Documented current equipment configuration, plumbing connections, electrical service, and venting arrangements to provide comprehensive replacement specifications and equipment sizing recommendations for complete system upgrade.
West Bend, WI 53090
# Furnace Inspection and System Assessment

Performed comprehensive inspection of residential gas furnace system. Removed front access panel to evaluate internal components and operational status. Inspected burner assembly and confirmed proper flame characteristics with visible blue flame pattern indicating complete combustion. Examined gas valve assembly and verified all electrical connections including red, white, green, and black wire terminations were secure and properly seated.

Assessed blower motor assembly housing and internal cabinet components for proper operation and mechanical integrity. Inspected control boards and electronic components throughout the unit, including circuit boards with associated wiring harnesses. Verified all safety labels and specification tags remained legible and properly affixed to respective components.

Evaluated thermostat and humidifier control wiring marked on interior panel. Noted normal dust accumulation consistent with equipment in regular se
# Furnace Inspection and System Assessment

Performed comprehensive inspection of residential gas furnace system. Removed front access panel to evaluate internal components and operational status. Inspected burner assembly and confirmed proper flame characteristics with visible blue flame pattern indicating complete combustion. Examined gas valve assembly and verified all electrical connections including red, white, green, and black wire terminations were secure and properly seated.

Assessed blower motor assembly housing and internal cabinet components for proper operation and mechanical integrity. Inspected control boards and electronic components throughout the unit, including circuit boards with associated wiring harnesses. Verified all safety labels and specification tags remained legible and properly affixed to respective components.

Evaluated thermostat and humidifier control wiring marked on interior panel. Noted normal dust accumulation consistent with equipment in regular se
Nick K.
Nick K. Checked in
# Furnace Inspection and System Assessment Performed comprehensive inspection of residential gas furnace system. Removed front access panel to evaluate internal components and operational status. Inspected burner assembly and confirmed proper flame characteristics with visible blue flame pattern indicating complete combustion. Examined gas valve assembly and verified all electrical connections including red, white, green, and black wire terminations were secure and properly seated. Assessed blower motor assembly housing and internal cabinet components for proper operation and mechanical integrity. Inspected control boards and electronic components throughout the unit, including circuit boards with associated wiring harnesses. Verified all safety labels and specification tags remained legible and properly affixed to respective components. Evaluated thermostat and humidifier control wiring marked on interior panel. Noted normal dust accumulation consistent with equipment in regular se
West Bend, WI 53095
Completed comprehensive HVAC system evaluation for equipment replacement estimate at residential property. Assessment included existing Rheem furnace installation in basement utility area with connected air handler and filter housing, plus exterior air conditioning unit positioned in side yard corner showing signs of weathering and requiring attention to surrounding clearance area. Documented current system configuration, equipment specifications, and installation conditions to provide accurate replacement recommendations for complete heating and cooling system upgrade.
Completed comprehensive HVAC system evaluation for equipment replacement estimate at residential property. Assessment included existing Rheem furnace installation in basement utility area with connected air handler and filter housing, plus exterior air conditioning unit positioned in side yard corner showing signs of weathering and requiring attention to surrounding clearance area. Documented current system configuration, equipment specifications, and installation conditions to provide accurate replacement recommendations for complete heating and cooling system upgrade.
Jason G.
Jason G. Checked in
Completed comprehensive HVAC system evaluation for equipment replacement estimate at residential property. Assessment included existing Rheem furnace installation in basement utility area with connected air handler and filter housing, plus exterior air conditioning unit positioned in side yard corner showing signs of weathering and requiring attention to surrounding clearance area. Documented current system configuration, equipment specifications, and installation conditions to provide accurate replacement recommendations for complete heating and cooling system upgrade.
West Bend, WI 53090
# HVAC Estimate - Replacement Summary

Conducted comprehensive assessment of existing HVAC system and water heater in basement utility room for replacement estimate. Evaluated current gray cylindrical water heater unit with copper piping connections, noting moisture staining on concrete floor and signs of age. Inspected existing air handler unit with metal ductwork and black flexible ducting, along with reflective insulated ductwork running along ceiling joists. Documented equipment specifications, spatial constraints, existing infrastructure connections, and utility room configuration to provide accurate replacement recommendations for both water heating and HVAC systems.
# HVAC Estimate - Replacement Summary

Conducted comprehensive assessment of existing HVAC system and water heater in basement utility room for replacement estimate. Evaluated current gray cylindrical water heater unit with copper piping connections, noting moisture staining on concrete floor and signs of age. Inspected existing air handler unit with metal ductwork and black flexible ducting, along with reflective insulated ductwork running along ceiling joists. Documented equipment specifications, spatial constraints, existing infrastructure connections, and utility room configuration to provide accurate replacement recommendations for both water heating and HVAC systems.
Jason G.
Jason G. Checked in
# HVAC Estimate - Replacement Summary Conducted comprehensive assessment of existing HVAC system and water heater in basement utility room for replacement estimate. Evaluated current gray cylindrical water heater unit with copper piping connections, noting moisture staining on concrete floor and signs of age. Inspected existing air handler unit with metal ductwork and black flexible ducting, along with reflective insulated ductwork running along ceiling joists. Documented equipment specifications, spatial constraints, existing infrastructure connections, and utility room configuration to provide accurate replacement recommendations for both water heating and HVAC systems.
West Bend, WI 53090
Conducted assessment of bathroom shower/tub enclosure featuring ceramic tile walls and brass fixtures. Evaluated existing shower head, faucet handle, and water spout for potential replacement. Documented condition of plumbing connections between wall and fixtures for future reference.
Conducted assessment of bathroom shower/tub enclosure featuring ceramic tile walls and brass fixtures. Evaluated existing shower head, faucet handle, and water spout for potential replacement. Documented condition of plumbing connections between wall and fixtures for future reference.
Kyle L.
Kyle L. Checked in
Conducted assessment of bathroom shower/tub enclosure featuring ceramic tile walls and brass fixtures. Evaluated existing shower head, faucet handle, and water spout for potential replacement. Documented condition of plumbing connections between wall and fixtures for future reference.
West Bend, WI 53095
Successfully installed new furnace with proper pressure testing completed. Conducted differential pressure measurements using Klein Tools ET180 manometer, confirming readings of 16.6 InH₂O and 14.4 InH₂O, which fall within manufacturer specifications. System is now operational with all connections properly sealed and tested.
Successfully installed new furnace with proper pressure testing completed. Conducted differential pressure measurements using Klein Tools ET180 manometer, confirming readings of 16.6 InH₂O and 14.4 InH₂O, which fall within manufacturer specifications. System is now operational with all connections properly sealed and tested.
Hayden L.
Hayden L. Checked in
Successfully installed new furnace with proper pressure testing completed. Conducted differential pressure measurements using Klein Tools ET180 manometer, confirming readings of 16.6 InH₂O and 14.4 InH₂O, which fall within manufacturer specifications. System is now operational with all connections properly sealed and tested.
West Bend, WI 53090
West Bend, WI - Inspected existing water treatment system setup and provided estimate for installation of a new water softener unit. Evaluated current plumbing configuration including drain access and connection points to yellow insulated and blue water lines. Recommended appropriate water softener system based on household needs and existing utility room layout.
Kyle L.
Kyle L. Checked in
Inspected existing water treatment system setup and provided estimate for installation of a new water softener unit. Evaluated current plumbing configuration including drain access and connection points to yellow insulated and blue water lines. Recommended appropriate water softener system based on household needs and existing utility room layout.
West Bend, WI 53090
Installed new copper water supply lines with shut-off valves in renovation area. Used flexible stainless steel connectors to prepare for fixture installation. All connections secured and tested for proper function.
Installed new copper water supply lines with shut-off valves in renovation area. Used flexible stainless steel connectors to prepare for fixture installation. All connections secured and tested for proper function.
Kyle L.
Kyle L. Checked in
Installed new copper water supply lines with shut-off valves in renovation area. Used flexible stainless steel connectors to prepare for fixture installation. All connections secured and tested for proper function.
West Bend, WI 53095
Inspected water heater system and documented significant copper heating element deterioration. Element exhibited advanced corrosion with extensive reddish-brown oxidation throughout, particularly severe at the U-bend section. Photographic documentation was taken to show condition of component requiring replacement due to compromised integrity.
Inspected water heater system and documented significant copper heating element deterioration. Element exhibited advanced corrosion with extensive reddish-brown oxidation throughout, particularly severe at the U-bend section. Photographic documentation was taken to show condition of component requiring replacement due to compromised integrity.
Hayden L.
Hayden L. Checked in
Inspected water heater system and documented significant copper heating element deterioration. Element exhibited advanced corrosion with extensive reddish-brown oxidation throughout, particularly severe at the U-bend section. Photographic documentation was taken to show condition of component requiring replacement due to compromised integrity.
West Bend, WI 53090
Performed assessment of aging Carrier natural gas HVAC system showing significant wear and dirt accumulation. Documented drain area and surrounding floor condition with visible cleaning tools in place. Recommended complete system replacement based on equipment age, visible deterioration, and operational specifications noted on manufacturer information plate.
Performed assessment of aging Carrier natural gas HVAC system showing significant wear and dirt accumulation. Documented drain area and surrounding floor condition with visible cleaning tools in place. Recommended complete system replacement based on equipment age, visible deterioration, and operational specifications noted on manufacturer information plate.
Bryan P.
Bryan P. Checked in
Performed assessment of aging Carrier natural gas HVAC system showing significant wear and dirt accumulation. Documented drain area and surrounding floor condition with visible cleaning tools in place. Recommended complete system replacement based on equipment age, visible deterioration, and operational specifications noted on manufacturer information plate.
West Bend, WI 53090
Conducted inspection of an aging water heater installation with significant copper pipe oxidation and mineral buildup at connection points. Documented existing plumbing configuration including copper/PVC pipe integration, valve assembly with prominent red handle, and pressure regulator system. Noted several areas requiring attention including corrosion at pipe junctions, deteriorating insulation, and potential flow restriction due to mineral deposits.
Conducted inspection of an aging water heater installation with significant copper pipe oxidation and mineral buildup at connection points. Documented existing plumbing configuration including copper/PVC pipe integration, valve assembly with prominent red handle, and pressure regulator system. Noted several areas requiring attention including corrosion at pipe junctions, deteriorating insulation, and potential flow restriction due to mineral deposits.
Kyle L.
Kyle L. Checked in
Conducted inspection of an aging water heater installation with significant copper pipe oxidation and mineral buildup at connection points. Documented existing plumbing configuration including copper/PVC pipe integration, valve assembly with prominent red handle, and pressure regulator system. Noted several areas requiring attention including corrosion at pipe junctions, deteriorating insulation, and potential flow restriction due to mineral deposits.
West Bend, WI 53090
Responded to no-heat call for Bryant Plus 90 furnace (10+ years old). Removed front panel to access internal components, inspected control board, wiring, motor, and gas connections. Diagnosed failed ignition module, replaced component and verified proper system operation with multiple heating cycles.
Responded to no-heat call for Bryant Plus 90 furnace (10+ years old). Removed front panel to access internal components, inspected control board, wiring, motor, and gas connections. Diagnosed failed ignition module, replaced component and verified proper system operation with multiple heating cycles.
Nicholas H.
Nicholas H. Checked in
Responded to no-heat call for Bryant Plus 90 furnace (10+ years old). Removed front panel to access internal components, inspected control board, wiring, motor, and gas connections. Diagnosed failed ignition module, replaced component and verified proper system operation with multiple heating cycles.
West Bend, WI 53090
Conducted inspection of existing water heater system in basement utility area. Documented current installation which includes water heater tank with top connections, adjacent water treatment/filtration system, and associated plumbing infrastructure including copper pipes, PVC lines, and metal ducting. System evaluation completed for potential replacement of aging unit with more efficient model.
Conducted inspection of existing water heater system in basement utility area. Documented current installation which includes water heater tank with top connections, adjacent water treatment/filtration system, and associated plumbing infrastructure including copper pipes, PVC lines, and metal ducting. System evaluation completed for potential replacement of aging unit with more efficient model.
Jason G.
Jason G. Checked in
Conducted inspection of existing water heater system in basement utility area. Documented current installation which includes water heater tank with top connections, adjacent water treatment/filtration system, and associated plumbing infrastructure including copper pipes, PVC lines, and metal ducting. System evaluation completed for potential replacement of aging unit with more efficient model.
WEST BEND, WI 53090
Conducted assessment of existing AC condenser unit installed on brick base platform. Documented debris accumulation around unit and on fan grill. Measured brick paver displacement to evaluate foundation stability for new unit installation.
Conducted assessment of existing AC condenser unit installed on brick base platform. Documented debris accumulation around unit and on fan grill. Measured brick paver displacement to evaluate foundation stability for new unit installation.
Jason G.
Jason G. Checked in
Conducted assessment of existing AC condenser unit installed on brick base platform. Documented debris accumulation around unit and on fan grill. Measured brick paver displacement to evaluate foundation stability for new unit installation.
West Bend, WI 53095
Performed routine maintenance on Lennox furnace system located in utility room. Inspected PVC venting pipes, drain lines, and connection to ductwork, confirming proper installation and function. Visual examination revealed system to be in good working condition with no immediate concerns.
Performed routine maintenance on Lennox furnace system located in utility room. Inspected PVC venting pipes, drain lines, and connection to ductwork, confirming proper installation and function. Visual examination revealed system to be in good working condition with no immediate concerns.
Donovan S.
Donovan S. Checked in
Performed routine maintenance on Lennox furnace system located in utility room. Inspected PVC venting pipes, drain lines, and connection to ductwork, confirming proper installation and function. Visual examination revealed system to be in good working condition with no immediate concerns.
West Bend, WI 53090
WEST BEND, WI - Replaced corroded evaporator coil access panel and cleaned oxidized refrigerant connections. Inspected system for proper operation after panel replacement and verified secure mounting of all components.
Donovan S.
Donovan S. Checked in
Replaced corroded evaporator coil access panel and cleaned oxidized refrigerant connections. Inspected system for proper operation after panel replacement and verified secure mounting of all components.
WEST BEND, WI 53090
West Bend, WI - Performed comprehensive combustion analysis on heating system using Bacharach Fyrite INTECH analyzer. Diagnostic readings showed oxygen level at 5.5%, carbon monoxide at 73 ppm, and stack temperature at 114.5°F. Adjusted burner assembly to optimize combustion efficiency and ensure safe operation parameters.
Nicholas H.
Nicholas H. Checked in
Performed comprehensive combustion analysis on heating system using Bacharach Fyrite INTECH analyzer. Diagnostic readings showed oxygen level at 5.5%, carbon monoxide at 73 ppm, and stack temperature at 114.5°F. Adjusted burner assembly to optimize combustion efficiency and ensure safe operation parameters.
West Bend, WI 53090
Performed comprehensive tune-up on aging HVAC system, documenting extensive corrosion on condensate drain lines and significant rust formation on the evaporator coil housing. Inspected PVC drain piping connections and identified deteriorating insulation on refrigerant lines that requires attention during next scheduled maintenance.
Performed comprehensive tune-up on aging HVAC system, documenting extensive corrosion on condensate drain lines and significant rust formation on the evaporator coil housing. Inspected PVC drain piping connections and identified deteriorating insulation on refrigerant lines that requires attention during next scheduled maintenance.
Donovan S.
Donovan S. Checked in
Performed comprehensive tune-up on aging HVAC system, documenting extensive corrosion on condensate drain lines and significant rust formation on the evaporator coil housing. Inspected PVC drain piping connections and identified deteriorating insulation on refrigerant lines that requires attention during next scheduled maintenance.
WEST BEND, WI 53090
Performed comprehensive inspection and documentation of existing HVAC system in residential basement. System includes furnace unit with sheet metal housing connected to vertical PVC ventilation pipes, side-mounted humidifier, and rectangular metal ductwork running along ceiling joists. Photos captured both the main mechanical room setup and adjacent storage area with exposed infrastructure for complete system evaluation prior to replacement estimate.
Performed comprehensive inspection and documentation of existing HVAC system in residential basement. System includes furnace unit with sheet metal housing connected to vertical PVC ventilation pipes, side-mounted humidifier, and rectangular metal ductwork running along ceiling joists. Photos captured both the main mechanical room setup and adjacent storage area with exposed infrastructure for complete system evaluation prior to replacement estimate.
Jason G.
Jason G. Checked in
Performed comprehensive inspection and documentation of existing HVAC system in residential basement. System includes furnace unit with sheet metal housing connected to vertical PVC ventilation pipes, side-mounted humidifier, and rectangular metal ductwork running along ceiling joists. Photos captured both the main mechanical room setup and adjacent storage area with exposed infrastructure for complete system evaluation prior to replacement estimate.
WEST BEND, WI 53090

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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.