Serving Clayton, MO · Locally Owned
Clayton Air Conditioning & Heating — Repair, Replace, Done.
Master HVAC Engineer Thomas Hoffmann leads a local team backed by 30+ years of St. Louis experience. AC repair, furnace repair, full system replacement, and maintenance for Clayton homes and businesses, handled by people who actually know the equipment.
Schedule Service in Clayton
Tell us what’s happening. We call back within 30 minutes during business hours, with same-day service when possible.
Why Clayton Homeowners Trust Us
A Real Local HVAC Company Serving Clayton — Not a National Chain.
A lot of “local-sounding” HVAC companies serving Clayton are owned by out-of-state holding groups. We’re not. Tom Hoffmann owns the business, signs the trucks, and answers for the work. Licensed, insured, NATE-certified technicians, fully stocked trucks, clear upfront pricing with no hidden fees, and flexible financing options.
Years of Experience
Three decades servicing St. Louis, from Clayton’s historic brick homes to condos and commercial spaces.
★ on Google
773+ St. Louis homeowners have rated us. Read what your neighbors say about showing up on time and fixing it right.
Real People Answering
A real St. Louis dispatcher picks up the phone for Clayton emergencies, nights, weekends, and holidays included.
Owned by Tom
Decisions made in St. Louis, not by a parent company in another time zone. Real owner, real accountability.
What We Do
HVAC Services for Clayton Homeowners
Repair, replacement, and maintenance for every heating and cooling system in Clayton and central St. Louis County, backed by 30+ years of St. Louis experience.
AC Repair
Fast diagnosis and honest repair options for Clayton homes, with 24/7 emergency service.
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Furnace Repair
Heating failure is an emergency in St. Louis winters. We dispatch to Clayton fast, nights, weekends, holidays.
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HVAC Installation
Full system replacement done right the first time. Authorized Trane dealer with factory-trained installers.
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Maintenance
Seasonal tune-ups that catch problems before they become breakdowns. Extends equipment life.
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Proudly Serving the Clayton Community
Clayton homes and businesses come in a wide range of styles and layouts, from historic brick residences in established neighborhoods to condos and office spaces in the downtown Clayton business district. Our team is experienced with different system types and configurations, and we take the time to understand your specific setup before recommending anything. We believe in repairing when possible and only recommending replacement when it’s the most cost-effective option for you.
We serve homes and businesses throughout zip code 63105 and nearby communities including University City, Ladue, and Richmond Heights. Whatever the season brings, a real St. Louis dispatcher answers the phone at (314) 471-7625, 24 hours a day.
What Your Clayton Neighbors Say
4.9 ★ on Google — Hundreds of Reviews.
Common Questions in Clayton
Frequently Asked Questions
Do you offer emergency HVAC repair in Clayton?
Yes. We answer emergency calls 24 hours a day, 7 days a week, including holidays. For urgent heating or cooling failures in Clayton, call (314) 471-7625 and we’ll dispatch a technician as quickly as possible.
How fast can you get to my home in Clayton?
Clayton sits right in the middle of our core service area, so response times are often fast. Same-day service is available when possible, and our trucks are fully stocked so most repairs can be completed on the first visit.
Do you service condos and commercial buildings in Clayton?
Yes. Along with single-family homes, we handle condos and light commercial HVAC work throughout Clayton, including the downtown business district. We repair and maintain all major brands including Trane, Carrier, Lennox, Rheem, and Goodman, and as an authorized Trane dealer we also handle full system replacements.
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.
What areas near Clayton do you serve?
We serve all of zip code 63105 plus nearby communities including University City, Ladue, and Richmond Heights, along with the greater St. Louis metro area.
Do you offer financing?
Yes, flexible financing options are available for system replacements and larger repairs. Ask when you call and we’ll walk you through what fits your situation.
Need HVAC Service in Clayton? We Answer 24/7.
Clayton homeowners get the same thing every Thomas Hoffmann customer gets: a Master HVAC Engineer’s standards, local ownership, and real people on the phone, every time you call.