Common signs
Signs you need service
No heat
The house is cold and the furnace does not start, or it starts and stops.
Furnace will not ignite
The burner will not light, the pilot is out or the system tries to start and shuts down.
Blower not running
The furnace seems to fire but little or no warm air reaches the rooms.
Banging, squealing or rattling
Loud noises at startup or while running often point to a worn motor, bearing or part.
Heat cuts on and off
The system cycles too often or shuts off before the house is warm.
Weak or uneven heat
Some rooms stay cold, or the air from the vents is only lukewarm.
What the visit includes
What you get on every visit
We find out what failed, explain it, and price the repair before we start.
- Inspection of the furnace, ignition, burners, blower and inducer
- Checks of the thermostat, safety controls and electrical connections
- A plain explanation of the fault and what caused it
- Repair price before any work begins
- Parts replaced and the system tested before we leave
- Diagnostic fee waived when you hire us and we supply the materials
Our process
How the work goes
Call at any hour
Emergency heating calls are answered 24/7. Tell us what the system is doing.
Diagnosis
We inspect the system and find the failed part or setting.
Repair price
You get the cost of the repair, and the cost of replacement if that is a real option.
Repair and test
We complete the repair, test the system and explain how to avoid a repeat.
“Our heat went out during extremely cold weather with 30+ mph winds in the DC/Maryland area, and this company came through when it mattered most. Pedro came out on a Saturday night around 8 PM, after finishing another job in Virginia, and still took the time to get our heat back up and running.”
FAQ
Common questions
Do you handle heating emergencies at night?
Yes. We offer 24/7 emergency service. Call (240) 638-8370.
Is it worth repairing an older furnace?
We give you the repair cost and, where it applies, the replacement cost. Several customers came to us after being told to replace a system that needed a repair.
What brands do you service?
We service all major brands, including Lennox. We are also a Carrier dealer.
What does the diagnostic cost?
The diagnostic fee is waived when you hire us for the repair and we supply the materials. Ask for the current fee when you call.
Related services
Other services

Boilers & Radiators
Hot water boilers and radiators, including older systems that many HVAC companies are not equipped to handle.
View service
Heat Pumps
Repair and installation of heat pump systems for year-round heating and cooling, including Carrier.
View service
Maintenance & Tune-Ups
Seasonal tune-ups and cleaning that catch worn parts before they fail.
View serviceSchedule service in Gaithersburg and Montgomery County.
Call day or night, or send a request and we will contact you.
