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A Custom Services is a top-rated HVAC contractor serving the greater Chicago area, supported by 141+ homeowner reviews and a 4.9★ average. Specializes in plumbing. One reviewer writes: "He knows all there is to know about HVAC." Tom and the team are singled out for responsive, clear communication. Delivers on schedule and on budget, which comes up again and again. Good value proposition according to reviewers: quality work at reasonable rates. Responds to reviews personally, which reflects a commitment to reputation and accountability. Familiar with Chicago's architectural heritage, including older bungalows, two-flats, and greystones.
HVAC projects typically cost $3K – $15K in Chicagoland
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78 reviews
Chicago
No recurring concerns found across reviews. This contractor maintains a consistently positive reputation.
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“Technicians Tom and Mike were INCREDIBLE!”
“Tom is my go-to guy when it comes to heating and air.”
Tom is my go-to guy when it comes to heating and air. He’s always willing to lend a helping hand, answer my questions or give some great advice. He knows all there is to know about HVAC. It was refreshing to have someone like him around after I bought my house and knew nothing about air conditioners. He’s saved me hundreds of dollars with his honest recommendations and guidance.. I truly can’t thank or recommend him enough!
Nicole Sjoeberg
Jan 2026
“Called them up and the guy Tommy was on his way to my home before I got off the phone with the dispatche.”
Called them up and the guy Tommy was on his way to my home before I got off the phone with the dispatche. Thats what I call service.
EMANUEL RIVERA
Dec 2025
“Amazing, hired two other companies and they didn't know what to do.”
Amazing, hired two other companies and they didn't know what to do. These guys came out and fixed it in a matter of minutes. Thanks so much for saving me thousands of dollars and lots of time.
Jordan
Nov 2025
“Technicians Tom and Mike were INCREDIBLE!”
Technicians Tom and Mike were INCREDIBLE!! Professional, knowledgeable, thorough, HONEST and pricing so fair. From the receptionist being courteous and customer-centric, to the CONSTANT line of communication from everyone, working with this company was a 10. As a homeowner, calling a repair person when you have no heat---- your worst nightmares are conjured. You feel vulnerable... and stressed. Tom and Mike couldn't have put me more at ease. They explained things in layman's terms and had patience when I asked alot of questions. They could have taken me for a ride and didn't. I don't know how much more I could ask for in a service call. This company is this real deal.
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Nov 2025
“Great service. Tommy H. Restored our confidence in A Custom Services. Our last experience was not...”
Great service. Tommy H. Restored our confidence in A Custom Services. Our last experience was not good and believe the previous technician damaged our furnace but Tommy H certainly made it right. We are once again return customers!!
Haidee Martinez
Nov 2025
“My family just hired them over the summer and we will continue to hire them for all HVAC services.”
My family just hired them over the summer and we will continue to hire them for all HVAC services. Tom was very helpful and explained everything we needed to know
Mr E
Oct 2025
“A Custom Services was able to come out right away and get my house cool again.”
A Custom Services was able to come out right away and get my house cool again! Great customer service and were very informative!
Patrick Moriarty
Oct 2025
“This was my second experience with Tom from A Custom Services.”
This was my second experience with Tom from A Custom Services. Very knowledgeable and even more importantly very thorough! Really appreciate his attention to the problem and figuring it out.
J Conley
Sep 2025
“I have been using them to service my home and apartment rentals for 6 years now.”
I have been using them to service my home and apartment rentals for 6 years now. They have been very honest, reliable, and responsive every time I have had an issue come up. If you are looking to build a relationship with an HVAC company to service your home or apartments there is likely no better company than them. I found them when I had heat go out in an apartment that had a newborn baby. The owner dropped everything and went over there immediately.
Jimmy Clark
Aug 2025
“Tommy was thorough, extremely knowledgeable and prompt.”
Tommy was thorough, extremely knowledgeable and prompt. I highly recommend A Custom Services
Kathy Mccarney
Jul 2025
“The technicians arrived in the time window I was given.”
The technicians arrived in the time window I was given. Tommy and Mike were polite and respectful. As a female homeowner, I've had to deal with numerous trades people who talked down to me and I appreciate it when I'm treated like I have a brain. I have a retrofitted mini-vent AC in a Chicago bungalow, so not the easiest to diagnosis and fix, but Tommy and Mike are well trained and experienced. Tommy explained the problem completely and was very thorough to insure any issues were identified so my AC will operate at its best all season. Options and costs were explained completely. Overall, a great experience. I plan to use A Custom Services for my boiler and AC maintenance going forward. Highly recommend.
Betsy Tandy
Jul 2025
“Great experience with a repair service on my AC.”
Great experience with a repair service on my AC. Everyone I spoke to from Sam in scheduling to Thomas who came to provide the service was pleasant, professional, customer focused and solved the problem quickly. Highly recommended.
Andrew Martel
Jun 2025
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