Locally Owned · Serving Richmond Heights, MO

Air Conditioning Richmond Heights, MO HVAC Repair, Replace, Done.

Master HVAC Engineer Thomas Hoffmann leads a local team backed by 30+ years of St. Louis experience, serving Richmond Heights homes and businesses. AC repair, furnace repair, full system replacement, and maintenance, handled by people who actually know the equipment.

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

Schedule Service in Richmond Heights

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

HVAC system sizing and service in Richmond Heights, MO by Thomas Hoffmann Air Conditioning & Heating

Why Richmond Heights Homeowners Trust Us

We Know Richmond Heights Homes, Historic Brick to New Builds.

From historic brick homes along Big Bend Boulevard to newer builds near The Boulevard and I-64, Richmond Heights brings real HVAC challenges: tight mechanical spaces, older ductwork, and efficiency upgrades for aging systems. Our technicians handle all of it. And unlike the “local-sounding” companies owned by out-of-state holding groups, Tom Hoffmann owns this business and answers for the work.

Local

Owned by Tom

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

30+

Years of Experience

Three decades of heating and cooling work across St. Louis County, including Richmond Heights’ older housing stock.

Upfront

Honest Pricing

A written estimate before any work begins. Practical options, not sales pressure or scripted upsells.

24/7

Real People Answering

A real St. Louis dispatcher picks up the phone, nights, weekends, and holidays included.

Urgent? Call Now.

AC out tonight in Richmond Heights? Furnace down on a cold morning?

A real person answers the phone, 24 hours a day, 7 days a week. Tell us what’s wrong and we’ll dispatch a technician as fast as humanly possible. No call centers, no overseas dispatchers, no scripts.

24/7 Emergency HVAC Service in Richmond Heights Real St. Louis dispatcher answers, nights, weekends, holidays.
Call (314) 471-7625

What Your Neighbors Are Saying

4.9 ★ on Google, Hundreds of Reviews.

Christine G.
2 days ago
Thomas Hoffman is a wonderful company to work with. Techs are knowledgeable, personable & efficient.
Response from the owner:Thank you, Christine, for your kind words about our team; we appreciate your feedback and are glad to hear you had a positive experience!
Pat B.
4 days ago
System maintenance didn’t take very long and Zachary was really nice and knowledgeable
marianne L.
5 days ago
Service was great on time very efficient explained what he was doing changed filter disposed of old filter ! Nice young man 👍
Response from the owner:Thank you, marianne, for your fantastic 5-star rating; we appreciate your support!
Dan C.
1 week ago
As owner of rental and living out of town, it is very easy and painless to have Thomas Hoffman schedule all of my seasonal work with the tenant. Highly recommend!
Response from the owner:Thank you for trusting us with your rental property maintenance, Dan! We appreciate your recommendation!
Carole F.
1 week ago
Zack did an excellent job!! He was very informative!
Response from the owner:Thank you, Carole! We're glad to hear that Zack provided such informative service. Your feedback is greatly appreciated!
James S.
2 weeks ago
Tom was able to offer the solution to my hot water heating system that other major companies had not been able to figure out for years. It was a significant undertaking, but also very reasonable in price. Installers Nick and Chris are also very nice people to work with. The heat in our house now works better than it ever has.
Response from the owner:Thank you, James! We're glad Tom could provide the solution you needed and that Nick and Chris made your experience positive. It's great to hear your heating system is working better than ever!
Tammy S.
2 weeks ago
Always on time or early! Great service, reasonable cost, Friendly,!!!! Have nothing bad to say about them! I’ve recommended them to several neighbors!
Response from the owner:We're so glad we could help you out quickly! Appreciate your kind words, Tammy!
William H.
2 weeks ago
Professionally done , very friendly and easily let me understand the problem.
Response from the owner:Thank you, William! We're glad to hear that you had a positive experience with our team. Providing clear communication and friendly service is important to us. We appreciate your feedback!
Hershey M.
2 weeks ago
great service. service tech sure knows the business. will continue to use the company and tech.
Response from the owner:Thank you, Hershey! We're glad to hear you had a great experience with our service tech. We appreciate your continued support and look forward to serving you again!
Richard H.
2 weeks ago
Great people & work, highly recommend them.
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!
Julio P.
2 weeks ago
Great service!
Response from the owner:Thank you, Julio! We're glad to hear you had a great experience with our service. Your support means a lot to us!
Jason E.
2 weeks ago
Highly recommend this local company. Nick was great from the get go. I was able to get them scheduled the next day.
Response from the owner:Thank you, Jason! We're glad to hear you had a positive experience and that Nick was able to assist you promptly. Your recommendation means a lot to us!
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!
Brenden H.
3 weeks ago
Answered my call after hours and came to my house in ladue. Fixed my heater that night. Highly recommend!
Response from the owner:Thank you, Brenden! We're glad we could assist you after hours and get your heater fixed promptly. Your recommendation means a lot to us!
Margaret F.
3 weeks ago
Excellent service, on time, friendly, and 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.
Allan G.
3 weeks ago
Zach did an excellent job! Always courteous and friendly. We would highly recommend calling Thomas Hoffmann HVAC for any heating and cooling needs.
Response from the owner:Thank you, Allan! We're glad to hear that Zach provided excellent service and appreciate your recommendation for Thomas Hoffmann HVAC.
Michael S.
3 weeks ago
Ryan has been a pleasure to work with. Unfortunately, to complete the installation of the contracted systems, there's still work to do getting the right vents in place, completing the thermostat placements, adjusting the airflow in the upstairs bedroom, etc. He's scheduled to come back next week and hopefully we can get this all finished.
Response from the owner:Thank you, Michael, for your feedback! We're glad to hear you've enjoyed working with Ryan. We'll make sure everything gets completed during his next visit.
Joe E.
3 weeks ago
Ryan was my service technician. I rate 10 stars ! Polite, knowledgeable and Honest !! Found the problem and heat back on. Excellent experience. Thank you Ryan !
Response from the owner:Thank you, Joe, for the 5-star review; your support means a lot to us!
Kathleen D.
3 weeks 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!
James H.
3 weeks 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.
Tom S.
4 weeks ago
They were good and did an exce llent job. Thank you
Response from the owner:Thank you for the 5-star rating, Tom!
Matthew K.
4 weeks 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!
Response from the owner:Thank you, Matthew! We're glad to hear you had a positive experience and we appreciate your trust in us. Looking forward to serving you again!
Chris B.
4 weeks ago
Nick was professional, very knowledgeable, courteous and efficient. Nice people in the office too.
Response from the owner:Thank you, Chris! We appreciate your kind words about Nick and our team. It's great to hear you had a positive experience with us.
Mark T.
4 weeks 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!
Darrell B.
1 month 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!

Common Questions

Richmond Heights HVAC Questions, Answered

Do you offer emergency HVAC service in Richmond Heights?

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

Can you work on Richmond Heights’ older brick homes?

Yes. The historic brick homes around Big Bend Boulevard often come with tight mechanical spaces and older ductwork. We regularly service aging systems in these houses and handle efficiency upgrades when replacement makes sense.

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.

What areas near Richmond Heights do you serve?

We serve Richmond Heights and the surrounding communities including Clayton, Brentwood, Maplewood, Ladue, University City, and the greater St. Louis metro area.

Why is my AC blowing warm air?

The most common causes are low refrigerant, a dirty air filter, a tripped breaker, or a failed compressor. Some are simple fixes; others need a technician. If your AC is running but not cooling, call us and we’ll diagnose it accurately on the first visit.

How long does a furnace or AC installation take?

Most residential installations are completed in a single day. We’ll give you a clear timeframe before we start and keep the work area clean throughout. Our goal is to have your system running before we leave.

Ready to Schedule Service in Richmond Heights? We Answer 24/7.

Richmond Heights homeowners get the same thing every Thomas Hoffmann customer gets: local ownership, real people on the phone, and 30+ years of St. Louis HVAC experience.