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Fast, reliable HVAC system service

Contact Us Today  (608) 478-8991

Contact Us Today (608) 478-8991

With 24/7 HVAC technician services available in Madison, WI, Harker Heating and Cooling is ready to install, maintain and repair your home’s heating and cooling systems.

Need 24/7 emergency HVAC repair?

Service quote

Over 70 years of
home heating & cooling experience

Harker Heating & Cooling Inc. has provided high-quality heating and cooling services to residents of Dane County since 1949. Our dedicated staff of HVAC specialists is available to handle any emergency, installation or repair 24/7, 365 days a year. Count on Harker to get the job done right.

An HVAC service
contractor with
values and integrity

We believe everybody should feel comfortable in their home. In Wisconsin where the weather can swing from one extreme to another, you want to be able to rely on your HVAC systems to function at optimal levels. When it comes to repairing or replacing your furnace, air conditioner, fireplace, or water heater, you can rest assured that Harker’s team of HVAC contractors will provide an honest assessment of the problem, and provide you with the most affordable solution.

Furnace and A/C unit
breakdowns are frustrating

That’s why we make it fast and easy to request an in-home estimate. Once you request a service, our team will arrive ready to perform repairs or replacements on-time and on-schedule. Don’t waste your time with dodgy HVAC contractors. Trust our reliable, efficient HVAC experts to get the job done.

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HVAC Blog

Lake House Climate Control
Cooling

Mastering Lake House Climate Control

Get the most out of your summer getaway with expert Lake House Climate Control tips. Learn how to maintain your HVAC system, improve indoor air quality, and boost energy efficiency for a comfortable, worry-free vacation.

Read More »
HVAC System Maintenance
Cooling

HVAC System Maintenance

Maintaining your HVAC system is essential to ensuring its efficiency, extending its lifespan, and preventing costly repairs. For homeowners in Wisconsin, where the weather can swing from frigid winters to hot, humid summers, HVAC system maintenance is vital for year-round comfort.

Read More »

What Our Happy Customers Are Saying

John Vaudreuil
11 hours ago
Our furnace problem popped up on a weekend, so we used Harker's online system and easily scheduled a Monday morning service call. It worked perfectly - we got a text with Roger Swenson's photo when he was about 45 minutes out, and Roger arrived on time. He was exceptional, and a great representative for a great company. He clearly explained every step; explained our options; and got us all up and running quickly. As always in our work with Harker Heating, the service was great, and Roger was highly skilled, and easy to work with.
Dan Rosati
4 days ago
The work completed by Lee and the customer service provided by Nate is match by none. They are a pleasure to work with. I have been a Harker customer for 22years, and their excellence to detail and customer satisfaction is phenomenal
Bill Cannady
1 week ago
Please have this technician referenced as preferred for all future visits. Exceptional knowledge and professionalism.
Gitau Muigai
1 week ago
I had an issue with my central heating system. The assigned tech, Adrian, was very professional and pleasant. He quickly diagnosed the problem and had it fixed.
Nancy Hilton
1 week ago
Very pleased, technicians were knowledgeable and professional, arrived exactly on time and explained everything clearly.
Gary Loeffler
2 weeks ago
Internal components of 5 year old furnace needed to be replaced. Parts were replaced under warranty. Lee Sowers did an excellent job, was very thorough and professional. Harker is a little expensive but always does quality work.
Cathy Pearson
2 weeks ago
I really appreciate the quick service, as well as their honesty. They didn’t push products or services beyond what was needed. I am a long term customer of Harker, and I will continue to support them!
Ross DePaola
2 weeks ago
Terrance was very professional, diagnosed then replaced the control valve for baseboard hot water heater. He had all the parts & tools on the truck. Tidied up after the work. Would recommend!
Mindy Bellis
2 weeks ago
Angie C
2 weeks ago
Great service!! I highly recommend