Whatever Columbus throws at your home, we hold it at 72°.
Same-day AC and furnace repair, flat-rate pricing you approve before we start, and NATE-certified techs who show up on time. No sweltering afternoons. No cold nights.
Drag the dial · or use arrow keys
Bringing it up to temperature
Scene 01 / 06
The unit
Everything starts with what's actually failing — not what's easiest to sell.
Columbus doesn't do mild. Neither do we.
Pick the problem you're having right now. Same crew, same flat-rate honesty, whether it's the dead of an Ohio winter or the peak of an August heat wave.
When Columbus hits 92° and the humidity won't quit.
AC repair
Same-day diagnosis on any make. Flat-rate, no surprises.
AC replacement
Right-sized systems with a 10-year parts & labor warranty.
Ductless mini-split
Room-by-room comfort for additions and older homes.
AC tune-up
Spring precision check so it survives August.
Coil & refrigerant
Leak detection, recharge, and coil restoration done right.
Smart thermostats
Ecobee & Nest setup, zoning, and app control.


Bringing it up to temperature
Scene 01 / 06
01:40
The call comes in. Someone's furnace has quit in single digits.
The price we say is the price you pay.
No mystery fees, no overtime surcharges, no “it depends.” You see the flat rate and approve it before a single tool comes out of the truck.
Waived when we do the repair.
You approve the price before we start. No overtime fees, ever.
12 months, on approved credit — for jobs over $1,000.
In-home, no pressure, second opinions welcome.
years keeping Columbus comfortable
NATE-certified technicians
average arrival on emergencies
homes served across the metro
“Our furnace died at 11pm in January. Northmark had a tech at the house by 12:30 and heat back on that night. I'll never call anyone else.”
“They quoted the AC replacement flat — no games — and beat two other bids. The install crew left the place spotless.”
“The Comfort Club tune-up caught a cracked heat exchanger before it became a disaster. Worth every penny.”
Northmark Comfort Club
The cheapest repair is the one you never need. Members get two precision tune-ups a year, front-of-line scheduling, and no diagnostic fees — ever.
- Two seasonal precision tune-ups (spring AC + fall furnace)
- Priority, front-of-line scheduling — even in a heat wave
- No diagnostic fees on any visit, all year
- 15% off every repair
- Filter reminders + a full system health report
Columbus and every suburb worth the drive.
Trucks stocked and staged across the metro so “same-day” actually means today.
- Columbus
- Dublin
- Westerville
- Hilliard
- Grove City
- Gahanna
- Upper Arlington
- Worthington
- Reynoldsburg
- Pickerington
- Powell
- New Albany
Just outside the lines? Call (614) 555-0142 — we probably still cover you.
Tell us what's wrong. We'll take it from here.
Send it now and a real dispatcher calls to lock your window — usually within the hour during business hours. Mid-emergency? Skip the form and call.
24/7 emergency(614) 555-0142- Mon–Fri7:00a – 7:00p
- Saturday8:00a – 4:00p
- SundayEmergency only