Locally Owned · Serving Hazelwood & North County
HVAC Company Hazelwood, MO Heating and Cooling Without the Runaround.
Hazelwood runs on schedules: shift work, school drop-offs, flights out of Lambert. Nobody has room in that day for a furnace that quits or an AC limping through August. Thomas Hoffmann, Master HVAC Engineer with 30+ years in St. Louis, leads the team that keeps North County homes comfortable with straight answers and work that holds up.
Request Service in Hazelwood
Tell us what the system is doing and we’ll take it from there. Calls are returned within 30 minutes during business hours, and same-day visits happen whenever the schedule has room.
Every System, Every Season
Heating & Cooling Services in Hazelwood, MO
From a capacitor swap to a full system changeout, one local team handles the heating, cooling, and air quality work North County homes need.
AC Repair
August in North County is no time for a dead condenser. Clear diagnosis, pricing before work starts, 24/7 emergency response.
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Furnace Repair
When the heat cuts out on a cold night, we find the failed part, explain it plainly, and get warm air moving again.
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HVAC Installation
Right-sized Trane systems matched to your home, installed by factory-trained technicians. Authorized Trane dealer.
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Maintenance
Spring and fall tune-ups that help keep efficiency up, warranties intact, and surprise breakdowns to a minimum.
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Independent and Accountable
The Name on the Company Answers for the Work.
Plenty of familiar HVAC names around St. Louis are now owned by out-of-state corporations, even when the trucks look the same as they always did. Thomas Hoffmann Air Conditioning & Heating is still independent and locally owned. Tom sets the standards, the technicians are our own background-checked employees, and every recommendation in a Hazelwood home has to pass one test: is it what we’d do in our own house?
Independently Owned
No national call center, no franchise playbook. Decisions get made in St. Louis by the person whose name is on the company.
Years in the Trade
Master HVAC engineering experience applied to everything from 60s-era ranch ductwork to modern high-efficiency systems.
Pricing in Writing
You see the number and approve it before a wrench turns. Straight advice on repair versus replace, with no pressure either way.
A Live Answer
Phones are answered around the clock by a real St. Louis dispatcher, not a voicemail maze or an out-of-state routing desk.
No heat on a January night? AC down during a heat advisory?
Some breakdowns can wait until morning and some can’t. Call at any hour and a live dispatcher sorts out how urgent it is and gets a technician headed your way. If you ever smell gas or a carbon monoxide alarm sounds, get everyone out of the house first and call from outside.
Word Gets Around
4.9 ★ on Google From Homeowners Across St. Louis.
Before You Call
Hazelwood HVAC Questions, Straight Answers
Do you offer emergency HVAC service in Hazelwood?
Yes, around the clock, weekends and holidays included. Call (314) 471-7625 and a live dispatcher gauges how urgent it is and gets a technician assigned as quickly as the schedule allows.
Can you work on the original system in an older Hazelwood home?
Yes. Much of Hazelwood’s housing dates to the 1950s through 1970s, and we work on aging equipment and ductwork every week. If a system is on borrowed time, we’ll say so plainly and price the repair next to a replacement so you can compare.
What brands do you repair?
All the major names, including Trane, Carrier, Lennox, Rheem, and Goodman. For new installations we’re an authorized Trane dealer with factory support behind every system.
How often should my HVAC system be serviced?
Twice a year is the general rule: cooling in spring, heating in fall. Regular tune-ups help maintain efficiency, keep manufacturer warranties valid, and often catch small problems before they turn into weekend emergencies.
Which areas near Hazelwood do you serve?
Florissant, Bridgeton, Maryland Heights, St. Ann, Berkeley, Ferguson, Black Jack, and the rest of the St. Louis metro.
Should I repair my old AC or replace it?
It usually comes down to the size of the repair against the age of the unit. A minor fix on a mid-life system often makes sense; a major component failure on a 15-year-old unit usually doesn’t. We put both numbers in front of you and let you decide.
Comfort for the Hazelwood House, Handled.
One independent local company, 30+ years of St. Louis HVAC experience, pricing you approve in writing, and a phone that gets answered at every hour.