By David Klingman on September 8, 2026 Verified by Google

We've been using the services of ThermAll Since moving to Yakima over three years ago; they have consistently been courteous, timely, and professional through all of our A/C, heating and electrical projects.

Today, Alex and Cheyenne not only came out to help me plan an additional outlet For the garage but had the open time and completed the work in under an hour and I was able to have this desired project completed.

By JOHN WILLIAMS on August 21, 2026 Verified by Google

I am SO glad I chose Thermall to design and install my new ductless AC/Heat system. My system consists of 2 Daiken low temp, 36K BTU compressors, running a total of 6 ductless heads for my 2700Sq' home.
The installation by James, electrical by Alex, and of course Lena was top notch.
James found brown gutter that matches my house painting, so NO obnoxious white gutter anywhere.
The compressors are set up side by side so they are NOT as noticeable if they'd been end to end.
The Daiken compressors AND head units are pleasantly very efficient and surprisingly quiet.
One of the absolute best features is that I can control each of the 6 head units separately, from an APP on my phone. YAY!!!
And their warranty was by far the best out of the 3 quotes I got.
It is refreshing to have company pay such attention to detail during every step of this process. They were not happy until I was happy.
And I am VERY happy.
Thank you Thermall 👍👍

By anthony murrietta on July 6, 2026 Verified by Google

Cheyenne was prompt, diagnose the issue and gave us an estimate for a repair rather quickly. Unfortunately, with the system, being an older one, I may be prudent to replace the system. She scheduled the person to come out and give us that estimate for us immediately. Cheyenne was fantastic.

By Lisa on May 27, 2026 Verified by Google

What a fantastic people! Thermall installed a new furnace for my elderly family member, who had chosen Thermall for the best package (price + friendliness) after getting a few bids. The new furnace worked great, except there was a humming noise coming from it. They happily returned at no charge and spent a good amount of time diagnosing and fixing the problem. Everyone we came in contact with was very courteous and competent, even when we called them back for help post-payment. Highly recommend!

By Kevin Crye on May 11, 2026 Verified by Google

This company is a joke. I had them look at my HVAC system that was installed approx. 3 years ago and stopped working. This is in a vacant house that was on the market. First things first, they did not look into warranty work which in the end was all covered at no cost to me. They started throwing darts a the system to see if that would fix it. They worked on it for several weeks and said it needed electrical boards at a cost of $1600 for me, still not working. Then it needed a new blower motor at a cost of $2300 for me. This time they said it worked. When I went to check on the system there wasn't even power to the thermostat that controls the unit. Luckily I stopped by to double check. This time they said it needed more electrical boards at a cost of $1600 to me. This is when I decided to get a second opinion. The first thing Tom From Grant Mechanical did was look into the warranty. He immediately found the system is still under warranty. He then discovered that the parts I was charged for were not the correct parts and would not work together anyway. He gave me all the manufactures information and photos to prove it. Tom installed the new system and now it works perfectly. I have put in several calls to Thermall and I get excuses each time. They won't call me back. They will not back their work. Do not use this company.