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.

john J.
4 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.
5 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.
5 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
6 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.
7 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.
2 weeks 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.
4 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.
4 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.

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.