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New Berlin






Menomonee Falls


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New Berlin




Menomonee Falls




Top Quality Air Conditioner & Furnace Repair & Installation in Milwaukee, New Berlin, Hartford, Burlington, and Menomonee Falls


Just as it’s important to check the oil in your car on a semi-annual basis, it’s always a great idea to have your furnace cleaned. A dirty filter can cause your air conditioner to not work properly.


Thielmann & Son Heating and Cooling provides the very best in furnace and air conditioner repair and installation (HVAC) heating and cooling services in the Milwaukee, Waukesha, New Berlin, West Allis, Wauwatosa, Hartford, Menomonee Falls, Burlington, and Muskego areas.


As a certified Premiere Lennox Dealer and an Authorized Bryant Dealer, you’ll be able to rest easy knowing that the services provided by Thielmann are top quality. To schedule a maintenance check for your furnace, boiler, or air conditioner, contact Thielmann & Son Heating and Cooling today.


Milwaukee Furnace and Air Conditioner (HVAC) Repair and Installation Services Include:

  • Preventative Maintenance Agreements
  • Gas Furnace Installation
  • Oil Furnace Installation
  • Gas Furnace Repair, Service & Maintenance
  • Oil Furnace Repair, Service & Maintenance
  • Garage and Unit Heater Installation
  • Air Conditioning Installation
  • Air Conditioning Repair, Service & Maintenance
  • Heat Pump Installation
  • Heat Pump Repair, Service & Maintenance
  • Oil to Gas Conversions
  • Geothermal Heating and Cooling Systems
  • Boilers Installation
  • Boiler Repair, Service & Maintenance
  • Radiant Floor Heat
  • Hydronics
  • Zoning Systems
  • Custom Sheet Metal Fabrication and Installation
  • Indoor Air Quality
  • Humidifiers
  • Dehumidifiers
  • ERV’s
  • HRV’s
  • Duct Cleaning
  • Commercial- New Construction
  • Commercial- Roof Top Replacement
  • Commercial- Build-outs and Remodels
  • Residential- New Construction
  • Residential- Remodeling
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This was without question the greatest group of men working together to make my house comfortable. They put in a heating and air conditioning system. They worked so hard from the minute they got there until the job was completed. They were personable, professional and very patient. I am not a mechanical kind of person, and each of them took the time to answer questions I had throughout the day. They knew exactly what they were doing and made sure everything was done down to last minute detail. I could not recommend this team any higher or thank them any louder for what they did. Nancy and Brandy in the office were so easy to work with and made this set up so easy and painless. Brad and Tom kept things flowing from start to finish beginning with the estimate and finishing with the install. Ryan, Jorge, Darryl and Tyler were simply the best bunch of guys you would ever invite into your home. I can't tell you this is how every HVAC operation works, but this is a model to be emulated. A simple thank you is not enough, but it is all I have to offer. So Thank you one and guys rock.
J. Scott Gibson


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