Locally Owned · U City’s Neighborhood HVAC Team

HVAC University City, MO Heating & Cooling, Handled.

When your AC quits or your furnace won’t fire, you want someone who knows U City homes, not a call center reading a script. Thomas Hoffmann, a Master HVAC Engineer with 30+ years in St. Louis, leads the team that shows up: repairs, replacements, and tune-ups done by people who own the outcome.

4.9 Google Reviews
30+ yrs experience
24/7 phones answered

Request Service in U City

Describe the problem and we’ll take it from there. Callbacks within 30 minutes during business hours, and same-day visits when the schedule allows.

Heat pump and HVAC service in University City, MO by Thomas Hoffmann Air Conditioning & Heating

The Local Difference

From Parkview to The Loop, U City Is Our Kind of Town.

University City’s housing runs the full range: century-old homes in Parkview and Ames Place, mid-century blocks near Heman Park, and everything in between. That mix means radiators and boilers next door to modern high-efficiency systems, and we work on all of it. This is a business Tom Hoffmann owns outright, not a franchise wearing a local name, so the person accountable for your job lives where you do.

Local

One Owner, One Name

Tom’s name is on the trucks and on the work. No parent company, no rebrand, no pass-the-buck.

30+

Years in St. Louis

Three decades of local systems, local weather, and local houses, including U City’s oldest.

Upfront

Estimates in Writing

You see the number before we pick up a wrench. Nothing added without your say-so.

24/7

Phones Always On

Midnight, Sunday, Thanksgiving: a real St. Louis dispatcher answers, not a machine.

Urgent? Call Now.

No heat in U City? No cool air? Don’t wait it out.

Heating and cooling failures get worse, not better. Call any hour and a real person picks up, gets the details, and puts a technician on it as fast as we can get one to your door.

24/7 Emergency HVAC Service in University City One number, answered around the clock by a St. Louis dispatcher.
Call (314) 471-7625

Straight From Your Neighbors

4.9 Stars on Google, and Counting.

Kathleen D.
13 hours ago
Ryan was very professional, knowledgeable, and thorough. I was able to get an appointment the same day during a biter, snowy day.
Response from the owner:We are so glad to hear you had a pleasant experience, Kathleen!
James H.
2 days ago
Came out immediately after a time slot opened and fixed the AC issue.
Response from the owner:Thank you, James, for your kind words! We're glad we could address your AC issue promptly.
Mark T.
2 days ago
This company is the best! Had another service our HVAC and had nothing but issues. Zach from Hoffman is courteous and efficient. Highly recommend this company
Response from the owner:Thank you, Mark! We're glad to hear you had a great experience with Zach and appreciate your recommendation. Your support means a lot to us!
Tom S.
2 days ago
They were good and did an exce llent job. Thank you
Response from the owner:Thank you for the 5-star rating, Tom!
Darrell B.
5 days ago
Came next day after call. May the repair quickly
Response from the owner:Thank you, Darrell! We're glad to hear that we could assist you promptly and efficiently with your repair. Your satisfaction means a lot to us!
Teresa F.
7 days ago
Ryan arrived 20 minutes early. A great start to our day as we had a plumber coming today as well. They did overlap, but Ryan was thorough, efficient and gave us a clean bill of health on our furnace in about 45 minutes. WE LOVE THOMAS HOFFMANN AIR CONDITIONING AND HEATING. Oh and get the combo service plan for both your furnace and AC annual service. Very reasonable.
Response from the owner:Thank you for sharing your positive experience with our service technician! We appreciate your kind words and are glad to hear that you were satisfied with the service provided.
Brandon B.
2 weeks ago
Zach was incredibly friendly, professional, and easy to work with. They provided high-quality work and clearly take pride in what they do. The entire experience was smooth and pleasant from start to finish. It’s refreshing to work with people who are not only skilled at their job but also genuinely kind and helpful. I highly recommend them!
Response from the owner:Thank you, Brandon! We're glad to hear you had a smooth and pleasant experience with Zach. Your kind words about their professionalism and kindness mean a lot to us. We appreciate your recommendation!
john J.
2 weeks ago
Got a checkup on the hottest day of the year and everything is working fine. Great service.
Response from the owner:John, thank you so much for the nice review! We are so happy to hear you had a positive experience.
Brian B.
2 weeks ago
Tech was on time and stayed till they were finished. He was very thorough listen to our concerns and had open and honest suggestions all while having casual conversation and making me and my wife feel comfortable.
Response from the owner:Thank you for recognizing our team's punctuality and dedication!
Premchand T.
2 weeks ago
Excellent service
Response from the owner:Thank you, Premchand, for your kind words about our service! We appreciate your feedback and are glad you had a great experience.
Dale C.
2 weeks ago
I love dealing with this company. Our tech, Zach, is professional and friendly. I love the level of communication from Thomas Hoffman: from the text/email reminders to schedule an appointment to the update of the appointment itself. Highly recommend this company!!
Response from the owner:Thank you, Dale, for your wonderful feedback! We're glad Zach could assist you effectively, and we appreciate your kind words about our communication and service.
Thomas E.
2 weeks ago
Very fast response and professional service.
Response from the owner:Thank you, Thomas! We appreciate your kind words about our fast response and professional service.
Kay H.
2 weeks ago
Zach came around 9:00 the early part of my window. It was my annual checkup and he said everything looked good. I will be moving out of state soon but appreciate your past service.
Response from the owner:Thank you so much for the great review, Kay. We truly appreciate your business!
William H.
3 weeks ago
Zach was great. He helped me better understand my systems and their operating systems.
Response from the owner:Thank you for the 5-star review, William. We are happy to hear Zach took good care of you.
Thomas E.
3 weeks ago
They installed our system and came out to check on a concern promptly and didn’t charge us.
Response from the owner:Thank you, Thomas! We're glad to hear that our team addressed your concern quickly and without any charges. Your satisfaction means a lot to us!
Pat Keith T.
3 weeks ago
Zachary is great! We purchase Hoffmans maintenance plan - they come when needed
Response from the owner:Thank you, Pat, for your kind words about Giovanni; we appreciate your feedback and are glad to hear that he made a positive impression.
Beth R.
3 weeks ago
Competence and knowledge have been my experience.
Response from the owner:Thank you, Beth, for sharing your experience; it means a lot to us!
Becky W.
3 weeks ago
I called on a Monday morning as air conditioning was blowing warm air. They were able to come to my house very early afternoon and fixed the problem. Would highly recommend and will use them again.
Response from the owner:Becky thank you so much for your great review. We appreciate your business and your kind words.
Frank P.
3 weeks ago
From the phone to the completion of the job everyone is so polite and informative. I had Giovani as our representative and he was very informative and professional, and knew exactly what the problem was. Thanks so much.
Response from the owner:Thank you for the kind review, Frank! We appreciate you and your business.
Adi S.
4 weeks ago
Our AC condenser and coil were swapped out. The company did a very good job with staff that were most professional. Would happily recommend their company and keep them for all my annual maintenance work. I stress their staff is very knowledgeable and professional.
Response from the owner:Thank you, Adi! We're glad to hear you had a positive experience with our team and appreciate your recommendation. Your kind words about our knowledgeable and professional staff mean a lot to us.
Chris S.
1 month ago
great people
Response from the owner:Thank you, Chris! We appreciate your kind words about our team.
Christine M.
1 month ago
Needed help after hours and they called me back right away! Super helpful and were able to fit me in when I was in a bind during the STL heat wave.
Response from the owner:Thank you, Christine! We're glad we could assist you promptly during the heat wave. Your satisfaction is our priority, and we appreciate your kind words!
ruter
1 month ago
Exceptional Service from Start to Finish!I recently hired Thomas Hoffmann Air Conditioning & Heating to replace my complete HVAC system, and I could not be happier with the experience. The installation crew—Zachary and Giovani—was absolutely top-notch. They were professional, courteous, and incredibly meticulous with their work
Response from the owner:Thank you, Ruter! We're so glad to hear you had an exceptional experience with our team, and we'll definitely pass on your kind words to Zachary and Giovani. Your satisfaction means a lot to us!
Richard H.
1 month ago
Great people & work
Response from the owner:Thank you, Richard! We appreciate your kind words about our team and the work we do. Your support means a lot to us!
Joe B.
1 month ago
Thomas Hoffman Air Conditioning and Heating did a fantastic Job for my company. They promptly responded to an emergency situation that occurred over a holiday weekend. They expedited the delivery of replacement parts Free piece of equipment that had broken down, and installed it immediately after receiving it. They were prompt, professional, and friendly. I would highly recommend them to anyone in need of HVAC services.
Response from the owner:Thank you, Joe! We appreciate your kind words about our team's promptness and professionalism, especially during an emergency. It's great to know that Thomas Hoffman Air Conditioning and Heating met your needs so effectively. Your recommendation means a lot to us!

Good Questions

What U City Homeowners Ask Us

Do you offer emergency HVAC service in University City?

Yes, around the clock. If your heat or AC fails at any hour, including weekends and holidays, call (314) 471-7625. A dispatcher answers live and gets a technician moving as quickly as the schedule allows.

Do you work on boilers and radiators in U City’s older homes?

Yes. Neighborhoods like Parkview and Ames Place still have plenty of hot-water and steam systems, and we service them alongside modern forced-air equipment. If you’re weighing whether to keep a boiler or convert, we’ll lay out both paths honestly.

Which brands can you repair?

All the major ones: Trane, Carrier, Lennox, Rheem, Goodman, and most others you’ll find in a U City basement. For new installations we’re an authorized Trane dealer, which means factory support behind every system we put in.

What areas around University City do you cover?

All of U City plus the neighbors: Olivette, Clayton, Wellston, Overland, the Delmar Loop area, and the wider St. Louis metro.

My AC runs but the air isn’t cold. What’s going on?

Usually one of four things: refrigerant is low, the filter is clogged, a breaker tripped, or the compressor has failed. A filter or breaker you can check yourself; the rest needs a technician. Call us and we’ll pin it down on the first visit.

How long does it take to replace a furnace or AC?

Usually one day, start to finish. You’ll get the timeline before work begins, we keep the area clean, and the aim is always a running system before we pack up.

Comfort Problem in U City? Consider It Handled.

One call reaches a locally owned company with 30+ years of St. Louis HVAC experience and a dispatcher who picks up at any hour.