HVAC reviews in Fishers, Indiana

Isaiah performed winter servicing on my home's furnace/heat pump and minisplit. I couldn't have asked for a better experience. He was exceedingly knowledgeable and conscientious in the work he performed, and he took the time to explain what had been done. I don't think I'd be able to ask for a better experience. But that's what I've come to expect from Williams Comfort Air. For both plumbing and heating, the techs I've dealt with have always been friendly and professional.

Mark B did an amazing job servicing our house today! He was very professional, kind, and very considerate since we have a newborn and dogs. Really grateful for his help today and very glad we chose Williams comfort air!

We needed to replace a malfunctioning electrical circuit breaker. The technician arrived ahead of his scheduled time and replaced the circuit breaker in less than 30 minutes.

We appreciated the company’s scheduling web site and the emails received ahead of the technician’s visit introducing him and providing his photo.

The only issue I had was with pricing. While the $98 fee for the initial visit and assessment, especially for an “emergency” visit seemed reasonable, the replacement fee ($160) for the circuit breaker seemed overpriced. Especially after I asked if more than one could be replaced at a lesser unit cost and the answer was $160 each regardless of number.

Overall though, the experience was positive, starting with the web site scheduling feature with an option to speak to a live person, followed by several emails confirming the appointment and introducing the technician, to the actual in person visit itself.

Enrique, our technician, did a great job. Very professional and explained the work he was doing. We've used Williams comfort air since we've lived here, about 8 years. Very pleased!

Matt Harris came to service the heat and did a great job. He was professional kind and respected our home.
He ran into a problem and quickly resolved it.
We appreciate him and the other others who have come to take care of our home our problems begin!

Well impressed with the quality of service and quick response by Williams Comfort Air team. I called them for a furnace malfunctioning on Wednesday, they came on Thursday, accurately diagnosed the issue and proposed a repair plan. After getting the spare part they came back on Friday, replaced the part and now the system is working properly.
The technician came within the proposed time windows and texted me well in advance to ensure someone would be at home at the moment of his arrival.
The technician was knowledgeable and proposed the best possible alternative.
Overall very satisfied with the service provided

We’ve used Williams for years, and have never been disappointed. Our technician, Daniel was incredibly knowledgeable, friendly, and prompt. Wish I could give him 10 stars!

My furnace completely stop running this week, and we have had zero temperature. I called Williams Comfort Air, and scheduled to have my furnace looked at , but because of the busy schedule my husband and I both have I missed my appointment. On my way to the house I called them back, and was told they would still try to get to me before the day end. I received a call and had a technician at my home within 45 minutes. My technician immediately began to work on the furnace, he gave me needed information about my repairs that was needed. Did not stick me with hidden fees or un needed repairs. So grateful to have my heat tonight. Thank God and Comfort Air.

I’m very impressed with this company. They sent me a text just before the technician arrived that included his photo. As a woman alone during many home repairs, I appreciated this immensely. The technician was quite knowledgeable, pleasant and extremely thorough. By far this “tune-up” was the most in-depth visit of this kind I’ve ever had. Mark took many photos of everything he evaluated and forwarded those to me with all the explanatory information as well. Mark was as professional and friendly as I could have hoped for. The $53 I paid for this service seems like such a valuable resource. We’ll definitely be certain to patronize Williams Comfort Air in future. Thanks!

Great experience with Williams comfort air. My furnace went out late at night (blown transformer) on a weekend. Williams responded quickly and Cody diagnosed and fixed my issue in very fast time. He also thoroughly discussed all options with me. Pleased with responsiveness, courtesy, and overall service!

Do to scheduling problems in the fall, I skipped the fall tuneup. So humidifier was not turned on properly.
Your tech took care of that problem and did the winter tuneup since it had already been paid for. That was a very favorable action on his part.
I will keep up my preventative mailntenace contract. But you should try to work hard to get available servicing dates closer to start of season. On Tuesday I’m scheduled the spring cooling checkup date and best I could get was June2. That’s well into the cooling season.

I had an appt. on Wed. between 2 & 4. He called before noon and wanted to come. I said no. However I would be home by 1 pm. He said that he would call back. He did not. I called repeatedly to check. I was told that staff was working until midnight. I highly doubted that as it was Christmas eve. No one called back. I asked for a manager to call me to discuss this. No one called. For a company that has a great reputation for customer service, this was not up to par. Someone came out 2 d later. He was kind and professional - the way I expected. However, I am still not over the first bad experiece. Communication would have gone a long way. I questioned whether Christmas eve afternoon was possible. I was told not a problem. This is the 2nd time in 2 years something similar has happened. I am NOT happy.

Overall very happy with the Tech you sent. However, I asked specifically for Roger Cothern to perform the maintenance. He is extremely knowledgeable and experienced. In fact, he is the reason I only use your business. He is that good in my opinion.

I had asked in the past to put a note in my file stating that I only want Roger to perform all my service and if he wasn't available to reschedule the call. However, the Tech that came showed me my file and notes and that was not in my file.

Please add that note into my account file.

Second time using WCA. No issues with the first service call which was last year and the tech was awesome. This call however did not go so well. The tech seemed to have a chip on his shoulder from the moment he arrived. He diagnosed the problem as a inducer motor that was failing on our Bryant boiler. We were then told that the cost for a new motor was 2k and would take almost a month to get in…and he was recommending we drain & flush the whole system. Total cost nearly $4k which then turned into conversation and his recommendation to replace the whole system with a new furnace.

We found the OEM part online for $500 vs $2000 and it was delivered to the house by noon the next day vs 1 month. While installing the part we blew the drain lines on the exhaust side which were full of algae and not draining properly…the ACTUAL problem. Turns out we probably didn’t need to even replace the motor. Registered temps and system pressure rose considerably after was was a few minutes of simple maintenance. We won’t use Williams again.

Called to receive an estimate for a new humidifier installation. Appointment was scheduled for next morning. Tech reviewed our HVAC system, made a recommendation, and said he could install same day. Work completed by a very professional and caring technician. Interesting point is I had called a competitor before I called Williams. That supplier said it would be a week before they could come and even give a quote recommendation. So, Williams wins hands down for quick responses and great service techs. I had a new HVAC system and humidifier installed in a different home within the last 24 months so I knew the price I was given was a competitive number and was able to make the quick install decision.

Williams Comfort has been my Hvac company for many years. I am in the process of down sizing and have my home for sale so I did not schedule my furnace inspection this year. Williams called me and set the appointment because our contract still had the inspection owed.
Lance not only did the inspection but wrote a report for the future owner's giving them a full report on the health of the furnace.
Williams is the most trustworthy company I have found.

Called Williams Comfort Air the morning of 21/17/2026. A tech arrived at 3 PM same day. Examined outdoor and indoor units. We were concerned about heavy icing on outdoor unit which was just installed mid Sept, 2025. Everything checked out okay. He said he has been seeing this on the new units. Also did additional explanations of features on thermostat control panel.
Top notch service **********

Williams comfort air made getting a new hvac system as stress free as possible from the estimate to installation. Communication is great. Installation was smooth. Techs are polite, professional and informative. I would recommend them every time! Thier plumbing service are great too. Its why I chose them in the first place.

I received a call back/phone call from Santiago Morales, HVAC technician with Williams Comfort Air, on Saturday a.m. 01/31/26. He arrived to my home in a timely manner and acknowledged the need to get the heat on in my home a.s.a.p. I had been without heat since early-a.m. the day prior, with outdoor temperatures below zero.
I showed Santiago the outdoor closet where my furnance is located and he asked me several questions pertinent to my furnace, the latter installed 08/05/2024. He did an inspection and readily located the source of my heating problem. Due to the large amount of snow and very cold weather, the water drain line was frozen solid. The wet switch sensor was tripped.
After diagnosing the problem, he did what was necessary for my furnace to operate efficiently again.
In addition to Santiago's diagnostic and technical skills, he displayed a very personable attitude and a sincere desire to provide help needed to get my heating system 'up and running'
as quickly as possible. I highly recommend him to assist other persons who are experiencing problems with their heating systems! Thank you so much, Santiago!!!

Nancy Jo Gemmer

I had a great experience with William Comfort Air and their tech, Kenny Bell. I was kept informed throughout the appointment process and Mr. Bell arrived right on time. He was very professional and explained the whole process in layman's terms, which I really appreciated. The whole experience was very smooth. I'd definitely recommend their service.

Williams is your best option in Carmel, IN. They fixed my furnace damper quickly and cost effectively. They also put in a Bradford White water heater - definitely the best tank type on the market.