100.0% would refer friends and family to us

5 stars Customer since 2007

Tonas came and checked out my furnace for winter and, also, came back to clean my furnace ducts. He is fantastic. He is a very personable guy. He is, also, a very knowledgeable technician. I have allergies and he gave me tips on helping my allergies.

5 stars Customer since 2007

Tanis worked very efficiently. He explained what he was doing in very clear manner.

The furnace area was clean and neat when he was finished. I asked him some

questions about the older furnace at our cabin. He answered as well as he could.

Now I know there are few things I should ask the serviceman about the heat



5 stars Customer since 2007

Great service.

5 stars Customer since 2007

Always have good, professional service

5 stars Customer since 2015

Dave was prompt and got the repair job done s requested.

4 stars Customer since 2007

They provided fast, efficient, and reasonable service when we needed them. I would recommend D.R. Kohlman for both cooling & heating service because they know what they're doing and they do it right the first time.

5 stars Customer since 2007

Excellent and timely service at fair prices..................................../Jim Schenk

5 stars Customer since 2007


5 stars Customer since 2014

the serviceman was very proficient and found the problem. Everything is back in order and works fine.

5 stars Verified customer

The work of cleaning and inspecting my central air was done quickly and professionally.