The Harker Heating and Cooling service department is dedicated to providing prompt and professional service for your heating, cooling, air quality or geothermal needs. Contact us for repairs on your furnace, air conditioning unit or other indoor air quality products.

Call For Service
During business hours: 608-255-6902
Mon-Thurs 7:30-4:30, Fri 7:30-4:00

After hours: 608-259-2588

  • 24 hour service
  • professional and highly trained service technicians
  • licensed, bonded, and insured technicians

Information Request / Quote Request

  • Please provide your address, city, and zip code. We provide service for Dane County.

  • * Due to the complex nature of most mechanical issues, it is usually best we contact you by phone to answer your questions. Your information will not be used for any outside marketing.
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Why Enroll in Our Goldstar Program?

A Service Agreement provides you with routine maintenance of your equipment which yields the lowest overall operating costs while giving the customer the highest probability of year-round comfort. Your “Service Agreement” will:

Save Money
Proper maintenance of furnaces and air conditioners lowers operating costs. Also, look at the service and new equipment savings.

Cleaning your system twice a year not only prevents break downs, but can also catch major problems before they happen.

Money Management
No fear of having an expensive repair on your furnace or air conditioner when you least expect it. Annual payments are predictable.

Peace of Mind
Sleep well knowing that your furnace & air conditioner are in the hands of certified professionals, at your service 24/7.

Call Today
During business hours: 608-255-6902
Mon-Thurs 7:30-4:30, Fri 7:30-4:00

Save $399 or more on a new air conditioner!