​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​

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

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

Receive incentives for each individual improvement, or make multiple upgrades at once and increase your incentives. When you consider heating and cooling accounts for nearly half of the average home’s energy usage, it’s easy to see how the right mix of improvements can deliver sizable savings. 

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

Looking to take steps toward lower energy bills and a more comfortable home? You’re on the right path. With Heating and Cooling Improvements from the Home Performance Program, you have a menu of energy-saving options to choose from, including a new furnace, boiler, smart thermostat or water heater. 

Illinois Cities Served

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

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

​​​Incentives

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