Locally Owned · Serving the City of Parks

Air Conditioning Fenton, MO Cool, Dry, and Comfortable.

In the Meramec valley, comfort isn’t just temperature, it’s humidity, and Fenton homes feel both. Thomas Hoffmann, Master HVAC Engineer with 30+ years in St. Louis, leads the team that handles the whole picture: AC and furnace repair, full replacements, maintenance, and the air quality work that keeps a house feeling right, not just reading right on the thermostat.

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

Request Service in Fenton

Tell us what’s off, temperature, humidity, noise, or all three, and we’ll call back within 30 minutes during business hours.

Indoor air quality and humidity control for Fenton, MO homes, Thomas Hoffmann Air Conditioning & Heating

Beyond the Thermostat

In the Meramec Valley, Humidity Is Half the Battle.

Fenton sits low along the river, and its homes, many with finished basements, feel it: muggy lower levels in summer, dry static air in winter, and AC systems working overtime to wring moisture out of the air. We treat humidity and air quality as part of the job, not an upsell, from right-sizing equipment so it dehumidifies properly to filtration and ventilation where the house needs it. Tom Hoffmann owns the company, and in the City of Parks, comfort indoors should match the quality of life outside.

Local

Owned Here, Not Leased

Tom Hoffmann’s company, Tom Hoffmann’s standards. No holding group, no rotating brand names.

30+

Years of Valley Weather

Three decades of St. Louis summers and winters, and the systems that survive both.

Upfront

Solutions, Not Upsells

Written pricing first, and recommendations sized to the actual problem, never to a sales target.

24/7

On Call, Always

A live St. Louis dispatcher answers every hour of every day, holidays included.

Urgent? Call Now.

Fenton system down? Don’t sweat it out or bundle up.

A failed AC in valley humidity or a dead furnace in a cold snap both get the same response: a live person on the phone and a technician dispatched as fast as the schedule allows, any hour of the year.

24/7 Emergency HVAC Service in Fenton Answered live around the clock, every day of the year.
Call (314) 471-7625

Ask Around Fenton

4.9 ★ on Google, Job After Job.

Kathleen D.
1 day 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!
Matthew K.
1 day ago
Great work! They cleaned up my ducts and made it more efficient without trying to upsell me on random things. Will use them again!
Chris B.
2 days ago
Nick was professional, very knowledgeable, courteous and efficient. Nice people in the office too.
James H.
3 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.
3 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.
4 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.
7 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.
1 week 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.
3 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!

Real Questions

Fenton HVAC Questions

Do you offer emergency HVAC service in Fenton?

Yes, around the clock. Call (314) 471-7625 any hour, any day, and a live dispatcher takes the call and gets a technician dispatched.

Why does my finished basement feel muggy even with the AC running?

Common in the Meramec valley. Below-grade rooms collect moisture, and an oversized or short-cycling AC cools the air without running long enough to dehumidify it. The fix ranges from airflow and drainage corrections to right-sized equipment or dedicated dehumidification. We diagnose which one your house actually needs before recommending anything.

Can better filtration help with allergies and dust?

Often, yes. Upgraded filtration and proper ventilation reduce the dust, pollen, and humidity swings that make indoor air feel stale. We’ll assess the system you have first; many improvements work with existing equipment rather than requiring new gear.

Which brands do you service?

Trane, Carrier, Lennox, Rheem, Goodman, and the rest of the major names. New installations are Trane systems through our authorized dealership, with factory support behind them.

What areas near Fenton do you serve?

Valley Park, Sunset Hills, Crestwood, High Ridge, Arnold, and the greater St. Louis metro on both sides of the Meramec.

How long does a system replacement take?

Most are done in a single day, scheduled in advance, with the new system running before we leave.

Fenton, Let’s Get Your Air Right.

Temperature, humidity, and air quality handled by one locally owned company with 30+ years of St. Louis experience and a phone that’s answered at every hour.