Heating
Furnace Repair
Furnace Replacement
Furnace Installation
Furnace Maintenance
Heat Pumps
Cooling
AC Installation
AC Repair
AC Replacement
AC Tune-Up
Ductless Mini Splits
Emergency AC Repair
Freon Recharge
Areas We Serve
Bartow County
Cartersville
DeKalb County
Dunwoody
Cherokee County
Ball Ground
Canton
Hickory Flat
Holly Springs
Waleska
Woodstock
Cobb County
Acworth
Kennesaw
Marietta
Smyrna
Fulton County
Alpharetta
Buckhead
Johns Creek
Milton
Roswell
Sandy Springs
Pickens County
Jasper
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Brands We Service
Goodman
Rheem
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Trane
Lennox
American Standard
5 Stars (241 Reviews)
By MR. HVAC
Heat Pump Blowing Cold Air? 7 Causes (Ranked by How Often We See Them)
It's a cold January morning in North Georgia, and you've set your thermostat to heat, but cold air is blowing from... Continue Reading
AC Is Cooling But Not Removing Humidity? 6 Causes (Ranked by Frequency)
Your air conditioner is running, the house feels cool, but something's off. The air still feels sticky, your... Continue Reading
Furnace Smells Like Gas? Here's When to Call for Help
Few things get a homeowner's attention faster than the smell of gas near their furnace. That distinctive odor... Continue Reading
Furnace Pilot Light Keeps Going Out?
Few furnace problems frustrate homeowners more than a pilot light that repeatedly goes out. You light it, the flame... Continue Reading
Furnace Smells Like Burning (When First Turned On)
Few experiences alarm homeowners more than turning on the furnace for the first time each season and immediately... Continue Reading
Furnace Turns On But No Heat? 7 Causes (Ranked by Frequency)
Few problems frustrate homeowners more than turning on the furnace on a cold North Georgia night only to hear it... Continue Reading
Best Thermostat Setting for Winter: How to Save Money
When cold weather arrives, finding the right balance between staying comfortable and managing heating costs becomes... Continue Reading
Furnace Tune-Up: Why Annual Maintenance Matters
Annual furnace tune-ups are among the smartest investments homeowners can make in their heating systems. Regular... Continue Reading
Furnace Flame Sensor: Signs It's Dirty/How to Fix It
A dirty flame sensor is one of the most common reasons furnaces fail to stay lit or shut off shortly after igniting.... Continue Reading
BEST HVAC COMPANY OF 2026
Thank you to our neighbors in Cobb and Cherokee County! Because of your support, MR. HVAC has been named a 2026 Best of winner for HVAC services. Experience the honest, expert service your community trusts.