Locally Owned · Serving the City of Warm Hearts

Air Conditioning Brentwood, MO Close By, Quick to Fix.

Brentwood may only cover a couple of square miles, but its homes span a century of construction, and so do their heating and cooling quirks. Thomas Hoffmann, Master HVAC Engineer with 30+ years in St. Louis, leads the team that sorts them out: honest repairs, right-sized replacements, and maintenance that keeps small problems small.

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

Schedule Brentwood Service

Two minutes to fill out, 30 minutes or less for the callback during business hours. Same-day visits when openings allow.

HVAC service for Brentwood, MO homes, Thomas Hoffmann Air Conditioning & Heating

Small City, Full Coverage

A Century of Brentwood Homes, One Standard of Work.

Off Brentwood Boulevard and Manchester Road you’ll find 1920s-40s bungalows, mid-century ranches, condo communities, and brand-new infill builds, often on the same block. Each heats and cools differently, and we service them all with the same approach: diagnose honestly, price in writing, fix it properly. Tom Hoffmann owns the company, not an out-of-state group with a friendly name, so the accountability is personal.

Local

Warm Hearts, Real Owner

A St. Louis company owned by one accountable person, serving a city that values exactly that.

30+

Years Across Eras

From gravity-furnace conversions to modern variable-speed systems, three decades covers Brentwood’s full range.

Upfront

Numbers First

Written pricing before any work begins, options explained plainly, and nothing tacked on unseen.

24/7

Never Off Duty

Emergencies reach a live St. Louis dispatcher every hour of every day, holidays included.

Urgent? Call Now.

Brentwood emergency? Help is minutes, not days, away.

Dead AC in a heat wave or a furnace that quit overnight both get the same treatment: a live person on the phone, an honest read on urgency, and a technician dispatched as fast as the schedule allows.

24/7 Emergency HVAC Service in Brentwood Every call answered live, every hour of the year.
Call (314) 471-7625

Warm Words From Warm Hearts

4.9 ★ on Google Across the Metro.

Rich C.
1 day ago
Very prompt response and very professional and conscientious repair service. Nick did a great job and is a very nice guy. I apparently have an intermittent problem that did not occur today. Your technician was excellent and system is now working, so I will call if issue recurs. You have terrific associates.
Response from the owner:Thank you, Rich! We're glad to hear you had a great experience with our repair service. Nick will be pleased to know his efforts made a positive impression. We appreciate your feedback!
Ryan B.
1 day ago
I called on a hot summer day and they came out and had it fixed super fast!
david W.
1 day ago
Amazing response time and service for AC replacement! Our AC failed on Monday evening, Nick came out to inspect and give us options within the hour, and we had a new AC installed by 1pm on Tuesday. Great team and very happy
Lori B.
2 days ago
I can’t say enough wonderful things about Thomas Hoffmann Air Conditioning and Heating! Nick came promptly, which was such a relief, and from the very beginning, he was personable, professional, and incredibly honest. After dealing with other companies, Nick’s honesty really stood out. He took the time to explain everything clearly, answer my questions, and make sure I understood what was going on—without any pressure or unnecessary recommendations. It was refreshing to feel like I was dealing with someone who genuinely cared about doing the right thing for the customer. Nick’s professionalism, knowledge, and customer service were truly top-notch. I wouldn’t hesitate to recommend Thomas Hoffmann Air Conditioning and Heating to anyone looking for a heating and cooling company you can actually trust!
Response from the owner:Thank you for the 5-star rating, Lori!
Connor L.
2 days ago
Very responsive and helped us promptly on one of the hottest nights in the summer!!
Logan L.
2 days ago
So professional and came within 10 minutes of our emergency! Nick was 10/10!!!
John P.
7 days ago
They did great work on a tight timeline. They saved our business that day! Very professional and smart. I will use them every time!
Response from the owner:Thank you, John! We appreciate your kind words and are glad we could help your business on such a tight timeline. Looking forward to working with you again!
Morgan T.
1 week ago
The service was excellent! When we arrived home after 8 pm, seen our unit was not working and it was almost 85 degrees in our home my husband began calling all of the companies that said they were 24 hrs. Thomas Hoffman heating and cooling was the only company that honored the statement. Nick was at our home in a very timely manor and was also able to fix our unit quickly! I would highly recommend to anyone needing any hvac services!
Response from the owner:Thank you, Morgan! We're glad to hear that you had an excellent experience with our service. It's great to know that Nick was able to assist you promptly and effectively. We appreciate your recommendation and look forward to helping you again in the future!
Excellent service and a job very well done. Highly recommended!
Response from the owner:Neil, thank you so much for the great review. We appreciate your continued support and business!
Timothy L.
1 week ago
Tom was amazing and fast , came out for a 24 hour service call and did quick work to keep us in our home during a summer heatwave.
Response from the owner:Thank you, Tim! We're glad to hear that Tom provided amazing and quick service. Your comfort is important to us!
Margaret F.
1 week ago
Excellent service, on time, professional!
Response from the owner:Thank you, Margaret! We appreciate your kind words and will make sure to pass along your praise to Nick for his excellent service.
lisa D.
2 weeks ago
Thomas Hoffman HVAC provides excellent service. The staff members are very nice, respectful and knowledgeable. I always feel comfortable with the advice I have been and the fees for repairs. Whether we see one of the companies employees or Thomas himself we have always had a good experience and highly recommend them. I am thankful to have found a trustworthy company to count on for my future needs.
Response from the owner:Thank you for the 5-star review, Lisa. We appreciate the support!
Michael M.
2 weeks ago
Everything went very well , excellent service, our AC should be good now .
Response from the owner:We are happy to hear it, Mike! Thanks for the 5-star review.
jane G.
3 weeks ago
Nick did an outstanding job on checking the attic and replacing damaged insulation. He showed me where the leak was coming in from the roof. Excellent overall job
Response from the owner:Thank you, Jane! We're glad to hear that Nick provided exceptional service by checking the attic and addressing the insulation issue. Your satisfaction is important to us!
Hank K.
3 weeks ago
Fast, friendly, professional service.
Response from the owner:Thank you, Hank, for your wonderful feedback; we're glad you enjoyed the fast, friendly, and professional service, and we'll be sure to keep up the great work!
Tom C.
3 weeks ago
Nick is very professional and have our AC issue resolved within an hour.
Response from the owner:Tom, we are so happy to hear you enjoyed working with Nick. We appreciate the great review and your business!
KATIE DOOLEY C.
4 weeks ago
I was distraught to find out our 20 year old HVAC needed to be replaced. Hoffman was beyond empathetic and took care of me within 24 hours during the heat wave. They were on time and very efficient. I have to have trust worthy people work on our house and be in our cocoon, therefore Hoffman has always been our contractor and always will be! They have become family;) I refer all of my clients to them!!!
Response from the owner:Thank you, Katie! We're so glad to hear that you felt supported during a tough time. Your trust means the world to us, and it's wonderful to know that we’ve become part of your family. We appreciate your referrals and look forward to continuing to serve you and your clients!
Becky W.
4 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.
Spencer W.
4 weeks ago
Thomas Hoffmann provided outstanding service from start to finish. The technician was professional, knowledgeable, and took the time to explain everything clearly. They arrived on time(early), diagnosed the issue quickly, and had my AC running perfectly in no time. I really appreciated their honest recommendations and fair pricing—no pressure or unnecessary upselling. It's refreshing to work with a company that truly values customer service. I highly recommend Thomas Hoffmann to anyone looking for reliable, high-quality HVAC service.
Response from the owner:Spencer, thank you so much for the 5-star review. We really appreciate your kind words, & your business.
john J.
1 month 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.
Brad G.
1 month ago
Outstanding...Giovani was superb..need him as a regular for our regular maintenance!
Response from the owner:Thank you, Brad! We're glad to hear you had a great experience with Giovani. We appreciate your feedback and will certainly keep your request in mind for your regular maintenance.
Jennifer H.
1 month ago
Service Technician was very nice and friendly.
Response from the owner:Thank you so much for the amazing review, Jennifer. We truly appreciate it!
goostorm
1 month ago
Quick service, solved the problem. Thanks!
Response from the owner:Thank you! We're glad to hear that our quick service helped solve your problem. We appreciate your feedback!
James H.
1 month ago
The repairman arrived at around 8:30 AM and spent about three hours working on the unit, which I purchased from them less than a year ago. At the end of three hours, he informed me that my unit was not working because I had the wrong filter in it. I raised a question about why it took three hours to replace the filter. I can't really explain his response because it was in technical jargon that I did not understand well enough to know what other questions to ask. The unit has a two year parts and labor warranty and a 10 year manufacturer parts warranty. unfortunately, I did not get the benefits of those warranties because, as the technician put it, the onus for using a less effective filter, rests with the customers. Then, he went on to describe to me the best filter choice, something the average customer would not automatically know. My greatest disappointment was being denied the benefits of my warranties. On the plus side, once management became aware of my dissatisfaction, they reached out to me with an apology for any role they played in my dissatisfaction and, as a show of their good intentions, they shredded my check, subsequently, not charging me for their service. This response showed a genuine commitment to quality and efficient service, as well as a commitment to customer satisfaction. Consequently, I highly recommend Hoffmann Air Conditioning services.
Response from the owner:Thank you, James, for your 5-star rating; we truly appreciate your support!
Tiffany B.
1 month ago
My experience was very pleasant. Nick was great got my problem taken care of. He explained how to use my new equipment . Thank you for a true 24 hr service.
Response from the owner:Tiffany, thank you for the 5-star review. We appreciate you and your business!

Before You Book

Brentwood HVAC Questions

Do you offer emergency HVAC service in Brentwood?

Yes, every hour of the year. Call (314) 471-7625 and a live dispatcher takes the call, weekends and holidays included, and gets a technician dispatched promptly.

Do you service condos and townhomes?

Yes. Brentwood has a large share of condo and townhome living, and we regularly handle the compact mechanical closets, shared walls, and association requirements that come with those units, in communities like Brentwood Forest and elsewhere.

Can you work on both my old bungalow and my neighbor’s new build?

Yes, and in Brentwood that’s often literally the same street. Older homes tend to need retrofit thinking and careful sizing; new construction needs commissioning and warranty-conscious service. We do both daily.

Which brands do you repair and install?

We repair Trane, Carrier, Lennox, Rheem, Goodman, and the other major brands. For new installations we’re an authorized Trane dealer with factory support behind the work.

What nearby areas do you also serve?

Richmond Heights, Maplewood, Rock Hill, Clayton, Ladue, Webster Groves, and the greater St. Louis metro.

How long does a system replacement take?

Most are finished in one day. You’ll have the schedule before we start, the work area stays protected, and the system is up and running before we leave.

Brentwood Comfort, One Call Away.

Locally owned, 30+ years of St. Louis HVAC experience, honest written pricing, and a dispatcher who answers around the clock.