​​​​​"wE'RE NOT COMFORTABLE Until YOU ARE"

​heating, air conditioning, Geothermal & Indoor air Quality Contractor Meeting the  needs with OVER 40 years

​Wisconsin Cities Served

Janesville, WI   

Elkhorn, WI 
Delavan, WI 
Whitewater, WI 
Fort Atkinson, WI 
Milton, WI 
Edgerton, WI 
Macfarland, WI 
Madison, WI 
Evansville, WI 
Orfordville, WI 
Darien, WI
Beloit, WI

Lake Geneva, WI
Mukwonago, WI
East Troy, WI
Lake Mills, WI
Brodhead, WI
Monroe, WI
Deerfield, WI
Oregon, WI

Evansville, WI 
Albany, WI
Juda, WI 
New Glarus, WI
Jefferson, WI
Johnson Creek, WI
Stoughton, WI
Cambridge, WI
Walworth, WI​

Illinois Cities Served

Durand, IL
Harvard, IL
Poplar Grove, IL
Capron, IL
Shirland, IL

South Beloit, IL
Capron, IL
Rockton, IL
Roscoe, IL

About Our Company

Don-Martin Heating, Cooling & Geothermal is a family owned and operated business for over 15 years with over 45 years of combined experience.  We've worked hard to  make sure that our technicians know the most up-to-date information about all of your heating and cooling needs. Keeping you cool and warm is our goal because, we're not comfortable till you are! 

​​​​​​Services

​​​​​DON-MARTIN HEATING, COOLING & GEOTHERMAL  

​​Wisconsin Counties Served 
Rock County, Wisconsin
Walworth County, Wisconsin
Dane County, Wisconsin
Jefferson County, Wisconsin
Green County, 

Heating and Cooling Units
We have worked with everything that's out there. So, rest assured that we have the knowledge for new installation and service even the toughest units. 

Geothermal 

Radiant Heating

​​Boilers
Indoor Air Quality Products
With you and your loved ones in mind, we offer products to help with your home's air quality.