Locally Owned · Serving St. Ann & North County

HVAC Company St. Ann, MO

St. Ann was built as a neighborhood of sturdy, sensible homes, and they deserve heating and cooling that’s just as sensible: fixed right, priced fairly, and running efficiently. Thomas Hoffmann, Master HVAC Engineer with 30+ years in St. Louis, leads the local team that keeps these houses comfortable without wasting a dollar of your energy budget.

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

Get Service in St. Ann

A short note about the problem gets things moving. We call back within 30 minutes during business hours and book same-day whenever an opening allows.

St. Ann, MO homeowners reviewing energy bills, energy efficient HVAC from Thomas Hoffmann Air Conditioning & Heating

Comfort Shouldn’t Cost a Fortune

A Climbing Utility Bill Is the System Trying to Tell You Something.

St. Ann’s homes are compact and practical, which means they should be affordable to heat and cool. When the bill keeps creeping up anyway, the cause is usually mechanical: a system losing efficiency with age, ductwork leaking into places you don’t live, or equipment that was never sized right to begin with. We diagnose the real reason before recommending anything. Sometimes a tune-up or a repair brings costs back in line; when the numbers genuinely favor a high-efficiency replacement, we show you that math in writing, with a free estimate and no pressure.

Local

Just Down the Road

A St. Louis company with its own employees, not subcontractors dispatched from a corporate call center.

30+

Years of Diagnosis

Master HVAC engineering experience that finds the actual problem instead of swapping parts and hoping.

Free

Replacement Estimates

Free estimates on system replacements, honest advice on repairs, and no manufactured upsells either way.

24/7

Phones Answered

A live dispatcher takes the call any hour of any day, so an emergency never lands in a voicemail box.

Urgent? Call Now.

House won’t cool down? Furnace blowing cold air?

Call any hour and a real dispatcher answers, works out how serious it is, and gets a technician moving toward St. Ann. One thing comes before any of that: if you smell gas or a carbon monoxide alarm goes off, get everyone out of the house first and make the call from outside.

24/7 Emergency HVAC Service in St. Ann Live answer, honest triage, fast dispatch.
Call (314) 471-7625

Neighbors First

4.9 ★ on Google Across the St. Louis Metro.

Beth R.
19 hours 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!
Pat Keith T.
22 hours 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.
Kay H.
1 day 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!
Becky W.
2 days 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 days 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.
1 week 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.
2 weeks ago
great people
Response from the owner:Thank you, Chris! We appreciate your kind words about our team.
Christine M.
2 weeks 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
2 weeks 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.
2 weeks 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.
2 weeks 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!
Alex C.
2 weeks ago
Nick was at my house in Kirkwood within hours of my call and was able to get me back up and running on a super hot day. Very pleased with the service and will be calling them for my HVAC needs in the future.
Response from the owner:Thank you, Alex! We're glad to hear that Nick provided prompt and effective service, especially on such a hot day. We look forward to assisting you with your HVAC needs in the future!
Theresa S.
2 weeks ago
Very punctual. Answers all my questions and concerns. Already scheduled for next service!
Response from the owner:Thank you, Theresa! We're glad to hear you appreciate having the same technician and the communication about your units. Your feedback on our customer service means a lot to us!
Lynn C.
2 weeks ago
Thomas was great! He arrived on time and fixed my problem quickly. I live in Clayton. I highly recommend Thomas Hoffmann Air Conditioning and Heating!
Response from the owner:Thank you, Lynn! We're glad to hear that Thomas provided prompt and effective service. Your recommendation means a lot to us!
steve B.
3 weeks ago
Fantastic service and friendly. We had an AC unit issue and they responded quickly and made the required repairs.
Response from the owner:Thank you, Steve! We're glad to hear you had a great experience with our service and that we could assist you promptly with your AC unit issue. Your feedback means a lot to us!
Matthew John D.
3 weeks ago
The truth of their proffesionalism forces you to Trust their expertise and a determined focus on customer satisfaction was unfortunately a rare experience in my years of east coast building maintenance.
Response from the owner:Thank you, Matthew, for recognizing our professionalism and commitment to customer satisfaction. We're glad to hear that your experience stood out after your years in building maintenance. Your support means a lot to us!
Kevin E.
3 weeks ago
Nick demostrated excllent customer service,professionalism, and technician.
Response from the owner:Thank you, Kevin! We're glad to hear that Nick provided excellent customer service and professionalism. Your feedback is greatly appreciated!
George B.
4 weeks ago
We live in Dardenne Prairie, and want to thank Tom for his excellent work in assessing our A/C unit that stopped working over Labor Day weekend where the outdoor temps were 100+. Tom not only had the exact components on-hand but also offered other future solutions to make our home more comfortable. Very personable and professional! Thanks Tom!
Response from the owner:Thank you, George! We appreciate your kind words and are glad to hear that Tom provided excellent service during such a hot weekend. Your satisfaction is important to us, and we're here to help with any future needs!
Katherine G.
4 weeks ago
Nick came out to our house in Valley Park. Super nice and helpful. Got our AC back to running!
Response from the owner:Thank you, Katherine! We're glad to hear that Nick was able to help get your AC running again. Your satisfaction is important to us!
ladodger6
4 weeks ago
Nick is a very knowledgeable HVAC professional. He quickly and thoroughly inspected my system. Highly recommend Thomas Hoffman AC.
Response from the owner:Thank you! We appreciate your kind words about Nick and are glad to hear you had a positive experience with Thomas Hoffman AC. Your recommendation means a lot to us!
Louise P.
4 weeks ago
My air conditioner went out, my son called, Nick was able to come out same day, very pleasant and professional.
Response from the owner:Thank you, Louise! We're glad to hear that Nick was able to assist you promptly and provide a pleasant experience. We appreciate your kind words!
Chris
4 weeks ago
Saturday. Labor Day Weekend. 100 degrees for the 4th day in a row and counting. A.C. goes out. No hvac companies well return calls and their phonebots say they're not available until Tuesday or Wednesday. Nick with Hoffmann answer's first ring and shows up in a couple hours, make short work of it, house is cooling nicely. Thanks Nick and Company.
Response from the owner:Thanks, Chris! We're glad Nick was able to help you out quickly, especially during such a hot weekend. We appreciate your feedback and are here for any future needs.
Susan S.
4 weeks ago
I was very pleased with Nicks presentation.
Response from the owner:Thank you, Susan! We're glad to hear you Nick represented our company in such an impactful way. Your feedback means a lot to us!
diana T.
4 weeks ago
Tom fixed my air conditioner well, from Tom Hoffman Air conditioning in Kirkwood, Missouri.
Response from the owner:Thank you, Diana! We're glad to hear that Tom did a great job fixing your air conditioner. We appreciate your feedback!
Don G.
4 weeks ago
Nick did a great job at everything!
Response from the owner:Thank you, Don! We're glad to hear that you had a great experience and that Nick made such a positive impact. We appreciate your feedback!

Ask Away

St. Ann HVAC Questions, Answered Plainly

Do you offer emergency HVAC service in St. Ann?

Yes, 24/7, holidays and weekends included. Call (314) 471-7625 and a live dispatcher will sort out the urgency and get a technician assigned as quickly as the schedule allows.

Why does my energy bill keep going up?

Common mechanical causes include a system losing efficiency with age, dirty coils or filters, leaking ductwork, low refrigerant, or equipment that was oversized or undersized from the start. A proper diagnosis identifies which one you’re dealing with, because the fix is different for each.

Will a new system lower my utility bills?

It often can, especially when replacing equipment that’s 15+ years old with a properly sized high-efficiency system. Actual savings depend on the home, the old equipment, and your usage, so we walk through realistic numbers for your situation rather than promising a figure.

Do you charge for replacement estimates?

No. Estimates on system replacements are free, in writing, and explained line by line. If a repair makes more sense than replacing, we’ll tell you that too.

Can you add central air to a house that’s never had it?

Usually, yes. Many older St. Ann homes have been running window units for decades, and options range from conventional ducted systems to ductless mini-splits, depending on the house. We assess the structure first and lay out what fits it and the budget.

Which areas near St. Ann do you serve?

Bridgeton, St. John, Overland, Breckenridge Hills, Woodson Terrace, Edmundson, Maryland Heights, and the rest of the St. Louis metro.

Sensible Comfort for the St. Ann House. That’s the Whole Job.

One locally owned company, 30+ years of St. Louis HVAC experience, free replacement estimates, and a phone answered at every hour.