​​​​​"We’re Not Comfortable Until You Are"

Heating, Air Conditioning, Geothermal & Indoor Air Quality Contractor With Over 40 Years of Experience

Contact Us

Superior Products & Superior HVAC Service

Don-Martin Heating, Cooling & Geothermal in Janesville, WI has been serving our residential and light commercial customers across Southern Wisconsin, including the following counties:

  • Rock County, WI
  • Walworth County, WI
  • Dane County, WI
  • Jefferson County, WI
  • Green County, WI

We’ve been in business since 1999 and have over 40 years of heating and air conditioning experience. There’s not a problem we haven’t been able to diagnose successfully and repair. That’s due to experience and a constant commitment to staying up on the latest advances in our industry. You can always expect a friendly face, smart diagnostics, and a repair that will last.

Whether it’s heating or cooling, repair or new installation, our dedication to detail is the reason we are here and still going strong. If you suspect any issues with your heating or cooling system, call your friends at Don-Martin right away for help.

Geothermal HVAC

We install geothermal heat pumps that are very high in efficiency. These systems use heat transfers between the air and the ground and can provide both heating and cooling to homes and light commercial buildings. Many customers love the money they can save over the years and even more people love the fact that geothermal is better for the environment. Give us a call today to learn more about these amazing systems.

We make your life more comfortable. Give us a call at 608.758.9882 to get started.

Share by: