Heating Repair in Germantown, MD
Furnace blowing cold, short cycling, running constantly but not reaching thermostat, 15+ years old, rusted burners, cracked heat exchanger, or gas bill spiking over $300 in January? We serve Montgomery County, including Germantown neighborhoods in zip codes 20876 and 20874. Owner operated HVAC company since 2001. No subcontractors — owner on every job. We install, repair and maintain high-efficiency gas furnaces, condensing boilers, and cold-climate heat pumps to -13F. Manual J sized, Montgomery County permitted under MD HVAC 51701 and MD Gas 110248, gas piping per WSSC 74144, and combustion safety tested.
wgsmartsavings.com • MD HVAC 51701
WHAT MONTGOMERY COUNTY
HOMES NEED FOR HEATING
Most homes in Montgomery County, including Germantown neighborhoods in zip codes 20876 and 20874 built between 1985 and 2015, have original 80% AFUE single-stage furnaces, 60,000 to 100,000 BTU, with a single 14-inch flex return for a 3-ton system, flex duct in the attic with 25-35% leakage. That undersized return is the number one reason furnaces in this county short-cycle, crack heat exchangers, run loud, and cause cold second floors.
We install high-efficiency gas furnaces from 96% to 98% AFUE, two-stage and fully modulating, with ECM variable-speed blower motor, new 4-inch or 5-inch filter cabinet. Primary lines are stocked at Johnstone Supply and RE Michel in Rockville and Gaithersburg, so warranty parts are available same day in Montgomery County, including service calls in Germantown zip codes 20876 and 20874.
Second is condensing wall-hung boilers at 95% AFUE for homes in older sections of Montgomery County with radiant baseboard, cast iron radiators, or hydro-air. Third is cold-climate air-source heat pumps that heat to minus 13 Fahrenheit, ideal for dual-fuel setups where the heat pump heats down to 30-35F and the gas furnace takes over in deep cold. This dual-fuel configuration cuts Washington Gas bills 30-45% while keeping gas backup for extreme cold, and qualifies for both Washington Gas and EmPOWER Maryland rebates plus federal 25C tax credit.
Every quote in Montgomery County includes Manual J load calculation, Manual D duct sizing check, gas piping BTU capacity check, and combustion safety testing. Same-day no-heat repair is available for common failures: hot surface ignitor, flame sensor, pressure switch, inducer motor, blower motor and ECM module, gas valve, and control board.
WASHINGTON GAS
REBATES — VERIFIED
Washington Gas All Maryland Rebates: wgsmartsavings.com/programs-rebates/md
CUSTOM QUOTE AFTER ON-SITE
Owner operated — owner on every job, no subcontractors. We do not provide phone prices because final investment depends on Manual J BTU load, filter cabinet size, gas piping length, venting length, and Montgomery County permit fees. We serve all of Montgomery County, with many installations in Germantown zip codes 20876 and 20874.
HEATING FAQ — MONTGOMERY COUNTY
Why is my second floor colder than my first floor in winter?
Almost every 2-story colonial in Montgomery County has one 14-inch flex return for a 3-ton system, plus 25-35% duct leakage in the attic. This is very common in Germantown homes in 20876 and 20874.
What size furnace do I need for my Montgomery County home?
We run Manual J load calculation. Most 2,000 sq ft homes in Montgomery County, including homes in Germantown 20876 and 20874, need 60k-80k BTU at 96% AFUE, not 100k.
Do I need a permit in Montgomery County?
Yes. Montgomery County requires mechanical and gas permit and inspection. We pull permit under MD HVAC 51701, MD Gas 110248, WSSC 74144.

