
Serving Janesville, WI and surrounding areas
Approved
In business since 2005
Free estimates
Warranties offered
"They were fast and efficient. Great job! And very nice people, too!"





+4


Serving Janesville, WI and surrounding areas
Approved
In business since 2005
Free estimates
Warranties offered
"They were fast and efficient. Great job! And very nice people, too!"





+4

Serving Janesville, WI and surrounding areas
In business since 1949
Free estimates
Emergency services offered
"Harker Heating And Cooling is the best HVAC contractor we have ever worked with in 40 years. Their web site proudly says they are an “honest company with Midwestern values.” That is absolutely true. Their representative provided in-depth advice, answered our questions. and returned our messages. Their techs were knowledgeable, professional, careful, and friendly. They were on time, on call, and on budget. The service they provided for us over the years could not be better. So when the time finally came to replace our old furnace and A/C we selected them. Unfortunately, they encountered many unexpected problems installing our new equipment. Many more than they had anticipated for the job. But their representative pledged to address every one of them no matter how hard it was for them or how much of their time it took. And that is exactly what they did. No quibbling and no questions. They got the job done right. If you want an honest family contractor who stands behind what they do, and lives by those Midwestern values, then this is the company to hire. You will be glad you did. Doug and Margie King Mount Horeb, Wisconsin"



Serving Janesville, WI and surrounding areas
In business since 1989
Free estimates
Emergency services offered
"Drain was cleaned and good to go in just a few minutes."

Serving Janesville, WI and surrounding areas
In business since 2020
Free estimates
Credit card accepted
"Shows up on time and is very efficient"
Serving Janesville, WI and surrounding areas
In business since 2025
Free estimates
Credit card accepted
We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumers needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.
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