Furnace Repair in Rockville, MD
A cold night in Rockville is the worst time to discover the furnace won't fire, and it's also when most of them fail. We take heating calls around the clock all winter. 24-7 HVAC of Bethesda serves Rockville, Twinbrook and King Farm. Our phones are answered around the clock, every day of the year.
Rockville housing and systems
Homes in Rockville are mostly 1950s ramblers in Twinbrook, townhouses in King Farm and Fallsgrove, and condos along Rockville Pike. Twinbrook ramblers usually have compact basement or closet systems with older ductwork, while the newer King Farm and Fallsgrove townhouses mostly have heat pumps with attic air handlers. Knowing the housing in Rockville helps our technicians plan each furnace repair call before they arrive, including which parts and tools to bring.
Calls we take in Rockville
- Cool air even though the burners are lit
- Rattling or scraping from the blower
- Rust or water inside the furnace cabinet
- Repeated thermostat calls with no heat
- Inducer motor runs but no ignition
What a visit includes
Older furnaces in Rockville get extra attention on the heat exchanger and flue, since cracks and venting problems are more common as equipment ages.
Frequently asked
Do you check for carbon monoxide?
Yes, every furnace repair ends with a combustion and CO check.
My furnace tries three times then stops. Why?
That's a lockout, usually from an ignition or flame sensing problem. It's a safety feature, and it's typically a quick diagnosis.
Do you come to Rockville at night?
Yes. Rockville is about 2.9 miles from our North Bethesda base, and we take calls around the clock for the 20850, 20851, 20852 and 20853 ZIP codes.
About cost
You'll get the price before any repair starts, day or night. Common parts are replaced on the spot. On older furnaces, we'll give you an honest repair-or-replace comparison.
More in Rockville:
AC Repair Heat Pump Repair & Service 24/7 Emergency HVAC Repair HVAC Tune-Up & Maintenance Ductless Mini-Split Installation Thermostat Installation Air Duct Cleaning All services in Rockville
Neighboring areas: Furnace Repair in Silver Spring Furnace Repair in Wheaton Furnace Repair in Takoma Park
Page updated: November 9, 2026