Harker Heating & Cooling. Heating. Cooling. You.
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HVAC Services

Madison’s leading heating and cooling contractor

HVAC Problems? Harker is here.

Harker Heating & Cooling is proud to be Dane County’s leading HVAC services provider. For more than 65 years, Harker’s heating and cooling technicians have been faced with nearly every furnace, boiler, A/C unit or water heater breakdown imaginable. When your home heating and cooling systems are on the fritz, you need to call an HVAC contractor with experience.

With our wide range of heating, cooling, indoor air quality, water heater, and fireplace repair and replacement offerings, Harker is here to help you find the best solution for improving the comfort in your home. We invite you to review our service areas to learn more about our HVAC options or visit our showroom to see our vast heating and cooling solutions for yourself. So, come on in! Our team of friendly HVAC specialists will right there to answer any of your questions and guide you through the selection process.

Don’t wait when you have heating and cooling problems on your hand. Call the experienced HVAC contractors at Harker.

Emergency HVAC Services

Dealing with an HVAC emergency? Call (608) 480-6786.  Harker’s specialists are available 24/7 to assist you with all of your heating and cooling needs.


Is your furnace running but blowing out cold air? Is it cycling more frequently? Have you noticed an increase in your heating bills over the past few months? These are all warning signs of an impending furnace ...
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Can your air conditioner keep up with the heat of summer? If your A/C unit is showing signs of wear — such strange noises, condensation, and poor airflow — it may be time to consider repairing or replacing ...
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Indoor Air Quality

Did you know that people spend nearly 90% of their time indoors? When it comes to your family’s well being, your home should be a worry-free zone. Yet, contaminants such as pet dander, dust, chemical fumes, pollen, ...
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Water Heaters

In the deep freeze of winter, waking up and climbing into a cold shower can throw off your family’s whole day. Don’t suffer — call the hot water heater experts at Harker. If you ...
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Water Heaters & Softeners

Dread that early morning cold shower? Harker can help. With licensed plumbers on staff we can make sure your home's hot water system is running properly. Having trouble getting a good lather? Hard water is water that contains an excessive ...
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Contact us today for service or a quote!