Reviews of local pros in Plainfield, Indiana

Brett, our technician, was great. He was prompt, very friendly, efficient and knowledgeable. We highly recommend William’s Comfort Air!

On time. Personable. found a fan;t on the resistive heat controller and it will be replaced in 3 days time. Excellent.

E received a new furnace and air conditioner on 12/19/25. The installers did a great job of putting in the units and cleaning up after they were done.

Their level of service is what all companies should strive for. We had prior notification of our technician, a very accurate call ahead, and a professional atmosphere from start to finish. The technician, Abraham, did exactly what he told me prior to starting. There were no blind charges or pressure added. I would definitely recommend Williams Comfort Air.

Williams has always provided excellent service at a reasonable price. We use them for heating, A/C and plumbing services. We are long time customers.

Our technician was efficient and professional. He answered all questions from my wife and I in language we could understand. I would welcome him back into our home for service or repair anytime.

Service techs are all very professional, courteous and knowledgeable. They document everything in photos and data showing exactly what they discovered and provided solutions as needed. It feels like this company really cares.

I couldn’t have been more pleased with the service that was provided.
Martin was spectacular! He was extremely professional, very knowledgeable, and provided all the information I needed, while taking the time to educate me and answer all of my questions.
Martin exceeded my expectations by a country mile… Thank you!!!

Great service as always. Texted me approximately what time he'd be here. Was courteous and friendly asking often if I had any questions or concerns. Very thorough.

David Hut has serviced my geothermal systems for 15 years. He is professional, knowledgeable, and expedient in his work. We wait for an appointment spot specifically with him!

Chris Perez was my technician from Williams Comfort Air. He was very knowledgeable, friendly and helpful. He did a great job and in a timely manner! It was a maintenance visit under warranty. No charge.

I used WCA several times in the distant past when living in a different area, prior to building a new house and had very good luck. I have (3) Geo systems, and WCA did not install them.

Five years later; I had problems with my GEO systems and I resorted to the company that installed them to repair them. They were unresponsive. I was mistakenly under the impression that WCA did not work on GEO Thermal systems, so I contacted 3 companies other then WCA to work on them. None were very competent, none had a large stable of techs with true GEO Thermal experience, and the last not only tried to fix it with 4 visits, but also charged me several thousands of dollars and could not repair the system.

Looking for a solution and knowing I had very good luck with WCA in the past, I contacted WCA to inquire on their ability to work on GEO Thermal systems and found they do have that capability, explained my problem, requested they send a seasoned GEO tech, and they were very responsive. They sent Craig to do an initial review in short order, and he carefully listen to the history of attempts to repair, and within less than an hour he diagnosed the issue, ordered the parts on a Thursday, and scheduled a repair for the following Monday. That Monday he showed up with an additional tech (David) and they double checked everything and found that there was actually more issues than previously thought, showed me how the prior company did not do the work correctly and explained the process that would be required going forward. Long story short, they finally fixed the system, which was a complex set of issues, and the system now works flawlessly. Upon questioning them further, I found that WCA has a very deep team of techs. I regret not having called them sooner. As a result, I have signed up for there maintenance plan and can highly recommend WCA.

Mike P. came to do our annual heat check up with WCA, and he was awesome! He set us up to be ready for winter and provided some options for additional improvements for our HVAC unit. He was timely, polite, and professional. Will definitely be using WCA (and Mike P.) again for our HVAC needs.

I'm never disappointed when I use wm.comfort air for my heating & ac service,employees are always fast,friendly,efficient & professional i love this company,they also are a give back to community company, so that's a extra plus,thanks for the excellent service!!

We received our winter maintenance today from Abraham. He was polite and arrived on time. Explained how our system was performing, William's always does a great job. We are on their maintenance plan.

We use the company for your heating and cooling maintenance needs. The service they provide with seasonal checkups have been done very timely and are very professional. All techs have been great and all appointments are set up and tracked well.

The communication before and after the appointment was very good. Our tech - DaWaun - was professional and personal. He explained everything in sufficient detail, and was extremely patient with questions.

Jason did our HVAC service today and did a phenomenal job. Very personable and worked in a efficient and timely manner. He is very knowledgeable about his job. Would definitely recommend and will use again.

We had Kenny as our technician tune up our HVAC unit and we couldn’t be more happy with the experience! Kenny was 20 minutes early for our service window tuned up both our AC and heating. The equipment is in great shape because of service we’ve had year over year from Williams. We highly recommend Williams!
Tod

The communication on their arrival time and what was to be done was excellent. The technician was very informative and explained everything that he was doing. I would highly recommend this company to my neighbors.

Mark Burkart with Williams Comfort Air came out to do a simple scheduled maintenance on the heating system. He's was prompt, polite, knowledgeable, and a great guy to talk to as well. I'd love to have him back out to do the maintenance again sometime.