St. Peters, MO · Locally Owned · Master HVAC Engineer

St. Peters HVAC. Repair, Replace, Done.

Master HVAC Engineer Thomas Hoffmann leads a local team serving St. Peters homeowners with 30+ years of experience. AC repair, furnace repair, full system replacement, and maintenance, all handled by a company that’s locally owned, not corporate run.

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

Schedule Service

Tell us what’s happening. We call back within 30 minutes during business hours, with same-day service when possible.


Air conditioning service for St. Peters MO homes, Thomas Hoffmann Air Conditioning & Heating

Why St. Peters Homeowners Trust Us

A Real Local HVAC Company Serving St. Peters, Not a National Chain.

A lot of “local-sounding” HVAC companies serving St. Peters are owned by out-of-state holding groups. We’re not. Tom Hoffmann owns the business, signs the trucks, and answers for the work. From Spencer Creek to Mid Rivers Mall, we keep St. Peters homes comfortable year-round.

30+

Years of Experience

Three decades servicing homes and businesses across the metro. Master engineering experience on every job.

4.9

★ on Google

773+ homeowners have rated us. Read what they say about showing up on time and fixing it right.

24/7

Real People Answering

A real local dispatcher picks up the phone on nights, weekends, and holidays.

Local

Owned by Tom

Decisions made here in the St. Louis metro, not by a parent company in another time zone. Real owner, real accountability.

What Your Neighbors Say

4.9 ★ on Google. Hundreds of Reviews.

john J.
3 days 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.
4 days 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.
4 days 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
5 days 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.
6 days 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!
KATIE DOOLEY C.
1 week 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!
Tiffany B.
1 week 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!
Kathleen J.
2 weeks ago
Very prompt, conscientious and personable. Work well done.
Response from the owner:Thank you, Kathleen! We appreciate your kind words about our team's promptness and attention to detail. Your feedback means a lot to us!
Lisa O.
2 weeks ago
The tech was great. He showed up on time, was very polite, answered all my questions and got the job done. The service was also very reasonably priced.
Response from the owner:Thank you, Lisa! We're glad to hear you had a great experience with our technician. Your feedback about punctuality, politeness, and value is much appreciated!
Bill G.
2 weeks ago
Technician, Giovanni Leone, did such a great job in fixing our AC on a Saturday morning when the Temp is supposed to get up to 100 degrees, later today! I felt like we were in excellent hands and he explained everything he was going to do and then explained in even greater detail once everything was done! I told him if he ever wants to go into sales, he should! He has great personable skills! We have used Thomas Hoffmann before for our heating and cooling needs and they are always professional and trustworthy! My only mistake was not having them to come out to check our AC in the past 3 years!
Response from the owner:Thank you, Bill! We're so glad to hear about your positive experience with Giovanni. It's great to know that you felt well taken care of and appreciated his thorough explanations. We truly value your trust in us for your heating and cooling needs, and we look forward to serving you again in the future!
Robinette H.
3 weeks ago
He came early and identified the problem ordered the part and put it in. He was professional, neat in appearance. I would say an asset to your company.
Response from the owner:Thank you, Robinette! We appreciate your kind words about the professionalism and neatness you experienced. It's great to hear that our team member made a positive impact. Your feedback means a lot to us!
Susan H.
3 weeks ago
Very professional and polite. Did a great job.
Response from the owner:Thank you, Susan! We appreciate your kind words and are glad to hear you had a great experience with our team.
Ted E.
3 weeks ago
Nick came by, identified the problem quickly and had it fixed. Great service!
Response from the owner:Thank you, Ted! We're glad to hear that Nick provided you with quick and effective service. Your feedback is greatly appreciated!
William H.
4 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.
Kaliyah
4 weeks ago
Quality service, fast, very professional!
Response from the owner:Thank you, Kaliyah! We're glad you experienced our quality service and professionalism. Your feedback means a lot to us!
Jacob K.
4 weeks ago
The technician that came to my house was awesome. He explained the issue and was 100% honest with me. He worked with my wishes and did a great job! Thank you
Response from the owner:Thank you, Jacob! We're glad to hear that the technician provided excellent service and was honest with you. Your feedback is much appreciated!
Lucas S.
4 weeks ago
Quick response, professional service. Made it out made the repair even on a holiday.
Response from the owner:Thank you, Lucas! We're glad to hear you appreciated the quick response and professional service, especially during the holiday. Your satisfaction means a lot to us!
Beth G.
4 weeks ago
Zach came out quickly and fixed our A/C on the 4th. He was pleasant and super efficient! A/C fixed and he was out of here, made our day for sure! Plus he likes dogs!
Response from the owner:Thank you, Beth! We're glad to hear that Zach was able to fix your A/C quickly and efficiently, and it's great to know he made your day better. We appreciate your kind words!
Rich J.
4 weeks ago
Excellent customer service and Repair work
Response from the owner:Thank you, Rich! We're glad to hear you had an excellent experience with our customer service and repair work. Your feedback means a lot to us!
Jennifer H.
1 month ago
Nick was fantastic. He was a great communicator, efficient and educated me and let me take the drivers seat to decision making without feeling pushed. I will for sure recommend friends and family. Service like this doesn’t come around much these days.
Response from the owner:Thank you, Jennifer! We're glad to hear that Nick provided you with excellent service and made you feel empowered during the process. We appreciate your recommendations and look forward to serving you and your friends and family in the future!
Michael G.
1 month ago
Extremely responsive and high quality work.
Response from the owner:Thank you, Michael! We appreciate your kind words about our responsiveness and quality of work.
Elizabeth K.
1 month ago
Tom was prompt, courteous and got the AC running right away. I will call him again with any needs.
Response from the owner:Thank you, Elizabeth! We're glad to hear that Tom provided prompt and courteous service. We appreciate your trust and look forward to assisting you again in the future!
Erin B.
1 month ago
This is the 2nd time we have used this company for our hvac needs. Great company, fast response, tons of communication and they find the problem and fix immediately. Even during the very hot weather. Couldn't recommend them enough.
Response from the owner:Thank you so much for the kind review, Erin. We appreciate your continued support!
Rich C.
1 month ago
Very prompt response and very professional and conscientious repair service. Nick did a great job and is a very nice guy.
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!
Becky W.
1 month 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.

Common Questions

St. Peters HVAC Questions, Answered

Do you offer emergency HVAC service in St. Peters?

Yes. We answer emergency calls 24 hours a day, 7 days a week, including holidays. For urgent heating or cooling failures in St. Peters, call (314) 471-7625 and we’ll dispatch a technician as quickly as possible.

What areas do you serve?

We serve St. Peters and surrounding St. Charles County communities, from Spencer Creek to Mid Rivers Mall, along with the greater St. Louis metro area.

Do you service all HVAC brands?

Yes. We repair and maintain all major brands including Trane, Carrier, Lennox, Rheem, Goodman, and more. As an authorized Trane dealer, we also offer new Trane installations with full manufacturer support.

Do you offer free estimates?

Yes. We offer free estimates on system replacements. For repairs, you get a written diagnosis and price before any work begins, so there are no surprises.

Should I repair or replace my system?

We’ll give you an honest answer based on the age of your system, the cost of the repair, and its efficiency. A general rule: if the repair costs more than half the price of a new system and the unit is over 10 years old, replacement usually makes more financial sense.

Why choose Thomas Hoffmann over a national chain?

Many national HVAC brands serving St. Peters are franchise operations, not true local companies. Thomas Hoffmann is locally owned, and Thomas himself remains directly involved in every job. You get a Master HVAC Engineer’s experience, not a call center.

Ready to Schedule in St. Peters? We Answer 24/7.

Homeowners across the metro have trusted Thomas Hoffmann for 30+ years. Local ownership means you deal with real people, every time you call.