Homeowners' pick for heating and cooling across Virginia and the Mid-Atlantic

Gas Furnace Repair in Manassas, VA

If you smell gas, leave the house now, call 911 or your gas utility from outside, and call us after the line is confirmed safe. With that out of the way, gas furnace repair across Manassas usually comes down to ignition problems, flame sensors reading dirty, pressure switches tripping on a blocked flue, or a limit switch shutting the burners down on restricted airflow. We open the cabinet, watch a full firing cycle, and test rather than guess. Call us or use the quote form to book a visit.

Call (888) 365-6280

A real person answers
Open 7 days
Written quote before work starts

Taking calls until 5:00 PM ET

We repair all major brandsCarrier Trane Lennox Goodman Rheem York American Standard Bryant

What brings Manassas homeowners to this job

The furnace clicks, then nothing happens Ignitor, flame sensor or control board lockout
It runs for two minutes and shuts off, over and over Short cycling from a dirty flame sensor, blocked flue or restricted airflow
Air is coming out of the vents but it feels cool Burners not lighting, or the blower running on a fan setting

What gas furnace repair involves

A gas furnace repair starts with watching the unit try to run through a full heating cycle. We follow the sequence the way the furnace does it: call for heat, inducer, pressure switch proof, igniter, gas valve, flame sense, blower. Whatever step it stalls on tells us where to look. Older homes across the region often have ducts running through vented crawlspaces, so we also check what is happening downstream, because weak airflow at the registers can look like a furnace fault when the duct is the problem.< /p>

What we check and replace

Common repairs include flame sensors that have gone sooty, cracked or weak hot surface igniters, failed inducer motors, blocked condensate traps on high efficiency units and pressure switches that will not prove because a flue or drain is restricted. We inspect the heat exchanger, wiring, limit switches, the gas valve and the blower motor and capacitor. We check flue termination and combustion air, and we clean and test rather than guessing at parts. You get told what failed and why before anything is replaced.

How we decide repair is the right call

We weigh the age of the furnace, what else on it is worn, and whether the repair returns the system to safe, reliable heat. A twelve year old furnace needing one igniter is worth fixing. A furnace with a cracked heat exchanger is a safety shutdown, not a repair, and we will say so plainly. If damp crawlspace conditions have rusted the cabinet and drain assembly, we talk about that too. You decide with real information, and we will quote both paths.

Manassas coverage

From Manassas we also cover Manassas Park, Bristow, Gainesville, Haymarket, Woodbridge, Centreville and Nokesville.

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Related furnace repair work in Manassas

All furnace repair in Manassas → · Gas Furnace Repair across the region →

What you get on every job

The quote comes first, in writing

Covering 171 cities across Washington DC, Delaware, Maryland and 5 more.

A real person answers

Open 7 days, 8:00 AM to 5:00 PM ET.

Every major brand, gas and electric

Carrier, Trane, Lennox, Goodman and more. We are not an authorized dealer for any of them.

Gas Furnace Repair in Manassas — quick answers

My furnace lights then shuts off after a minute. What is that?

That pattern usually points to flame sensing, a restricted flue or an overheating limit trip from poor airflow. Change the filter and open closed vents. If it repeats, book a furnace repair so we can read the fault codes.

Is a yellow or lazy burner flame a problem?

It can indicate incomplete combustion, which raises carbon monoxide risk. Do not adjust anything yourself. If an alarm sounds or you smell gas, leave the house, call 911 or the gas utility, then call us for heater repair.

How soon can you get to my house in Manassas?

Call us and we will give you a real window rather than a guess. During a July heat run or the first hard freeze, same-day slots fill early, so morning calls have the best chance. If you are without cooling or heat, tell us when you call and we will treat it that way. Before we arrive you can check the thermostat batteries and settings, look for a tripped breaker, change a clogged filter and clear leaves or mulch away from the outdoor unit.

How it works

Step 1
Tell us the symptom
Call or fill in the form and describe what changed. Warm air, short cycling, a smell, water near the indoor unit. Details like that help us load the right parts before we leave.
Step 2
We diagnose the whole system
We check the thermostat, the indoor unit, the outdoor unit and the ductwork, including runs in crawlspaces where damp air and loose joints quietly cause weak airflow and long run times.
Step 3
You approve the fix
We explain what failed, what it takes to repair it, and what we would watch next season. Nothing gets replaced without your yes, and we clean up before we leave.

Call (888) 365-6280

A real person answers
Open 7 days
Written quote before work starts

Why homeowners call us

Humidity is our home groundMuggy summers and damp shoulder seasons drive most of the calls we take. We look at moisture and airflow together, not the cooling number alone, because a clammy house often means a sizing or duct problem.
Crawlspace ducts get checkedOlder homes across the region run supply ducts through vented crawlspaces. Crushed flex, disconnected boots and soaked insulation show up constantly, and we get under the house to look instead of guessing from the register.
Heating and cooling bothSame crew for air conditioning repair in July and heating repair in January. We know how your furnace, heat pump and air handler share ducts and a blower, so one visit covers the whole system.
Plain talk on repair or replaceWhen a repair makes sense, we repair it. When a system is failing in ways that will keep costing you, we say so and explain why, then leave the decision with you and your timeline.
All major brands, gas & electricCarrier, Trane, Lennox, Goodman, Rheem, York and more, as an independent company.
Straight answersIf a system is not worth repairing, we say so, often right on the phone.