Virginia Electrical and HVAC Contractor License 2705181607
Heating Repair in Northern Virginia
Heat back on, and the real cause found rather than the symptom treated. Across Fairfax, Loudoun, Arlington, and Prince William Counties, from the only kind of team that can diagnose both halves of a furnace: the heating and the electrical.
Your Furnace Is Probably Not Broken. One Small Electrical Part Is.
A furnace starting up is not one event, it is a chain of them, and each link has to prove itself electrically before the next one is allowed to run. That is a safety design and it is a very good one. It also means that when something fails, the chain stops at a specific place, and what you hear in the first minute tells you where.
Match what you are hearing to where it stopped. The right hand column is what you can check yourself for nothing, before anybody charges you for a visit.
| What you hear | Where the chain stopped | Worth checking yourself |
|---|---|---|
| Nothing at all. No hum, no click. | Call for heat Breaker, transformer, thermostat wiring or the board | Free: Check the breaker and the furnace switch, the one that looks like a light switch on the unit. People turn it off by accident more often than you would think. |
| A hum or whirr, then it gives up. | Pressure switch Blocked flue or intake, or a failed switch | Free: Look at the outside vent. Snow, leaves or a bird's nest across it will do this, and clearing it is free. |
| Clicking or a glow, but it never lights. | Igniter or gas valve Cracked igniter, or no gas getting there | Free: Check other gas appliances still work. If nothing gas works, it is the supply rather than the furnace. |
| Lights, runs a few seconds, shuts off. Repeats. | Flame sensor Dirty flame sensor, nine times out of ten | Free: This is the classic. The sensor gets a film on it and stops proving the flame, so the board shuts the gas off for safety. Cleaning it is a job with emery cloth. |
| Runs, but the air is cool. | Blower or airflow Blower timing, a restricted filter, or ductwork | Free: Change the filter first. A restricted filter causes more no heat calls than any single part. |
| Heats, then trips out after a while. | Limit switch Overheating, usually from poor airflow | Free: Same answer: filter, and check nothing is blocking the returns. The limit switch is doing its job when this happens. |
The one worth knowing about. Lights, runs a few seconds, shuts off, repeats. That is the flame sensor, and it is the most common no heat call on a gas furnace by a distance. The sensor proves to the board that a flame is genuinely there. A film builds on it, it stops proving that, and the board shuts the gas off, which is exactly what it should do. Cleaning it is a job with a piece of emery cloth.
And the boundary, plainly. This is gas and electricity in the same cabinet. Power off at the breaker and at the switch on the furnace before anything, and if you are not certain about any part of it, that is a phone call rather than a project. 703.225.8222. We would rather talk you through it than read about it afterwards.
Every Kind of Heating Problem
Strange noises
Banging, screeching and rumbling each point somewhere specific, and none of them settle down on their own.
Weak or uneven heat
Rooms that never get there, or a system that runs constantly without reaching the setting.
Short cycling
On and off every few minutes. Usually airflow or a safety doing its job, and hard on everything.
Electrical faults
Tripping breakers, a furnace that will not start, or a burning smell. This is the half most heating companies subcontract.
Thermostat trouble
Sometimes the cheapest fix on the list, and always worth ruling out before anybody opens the equipment.
Airflow problems
Restricted filters, blocked returns and leaking ducts, which cause more no heat calls than most parts do.
Why Homeowners Trust Us to Keep Them Warm
Both trades, one visit
Virginia contractor license 2705181607 covers the heating and the electrical. Look at the sequence above: nearly every link in it is an electrical component. A heating only company often has to bring in an electrician and bill you twice.
Fast, because a cold house cannot wait
And if it is a full no heat situation, our emergency heating team covers it round the clock.
Diagnosed before it is quoted
You get told which link in the chain failed and why, then the price, then you decide. Nothing happens before that.
Honest about repair against replace
On a system fifteen years or older with repairs stacking up, we will say so. On a newer one with a simple fault, we will say that too.
Financing is available on request, and the veteran discount program applies.
Get Your Free Heating Repair Estimate
Tell us what the furnace does in the first minute after you call for heat. That one detail narrows it a long way. Or call 703.225.8222.
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Heating Repair Questions, Answered
Why is my furnace blowing cold or lukewarm air?
Common causes include a restricted filter, a thermostat issue, a failing igniter or flame sensor, or a system that is short cycling. There is a table further up this page that matches what you are hearing to the part that is most likely responsible, including the ones you can check yourself for nothing.
My furnace lights and then shuts off after a few seconds. What is that?
That is the most recognisable fault on a gas furnace and it is usually the flame sensor. The sensor proves to the control board that a flame is actually present. When a film builds on it, it stops proving that, and the board shuts the gas off for safety, which is exactly what it should do. Cleaning the sensor is a small job. If you are comfortable turning the power off at the furnace switch and the breaker first, it is one many homeowners do themselves.
How fast can you get my heat back on?
We respond fast, because a cold home cannot wait. For a full no heat situation our emergency heating repair team is available around the clock.
Should I repair my furnace or replace it?
If your system is newer and the fix is straightforward, repair is usually the smart call. For a furnace fifteen or more years old, or one that keeps failing, we will tell you honestly whether replacement is the better investment.
Why do you check the electrical side too?
Because that is where most of it lives. Look at the ignition sequence above: the thermostat call, the inducer, the pressure switch, the igniter, the gas valve, the flame sensor and the blower are all electrical components being asked to prove themselves in order. As licensed Master Electricians and HVAC technicians we diagnose both sides in one visit instead of sending you to somebody else.
Is there anything I should check before calling?
Three things, all free. The breaker, and the switch on the furnace itself that looks like a light switch. The filter, because a restricted one causes more no heat calls than any single part. And the outside vent, which snow and leaves will block. If none of those is it, note what the furnace does in the first minute after you call for heat and tell us, because that narrows it a long way before we arrive.
Will I know the cost before you start?
Yes. We provide up front pricing after diagnosis, so you know the cost before any repair begins. No hidden fees, no surprises.
Explore Our Other Heating Services
Do not wait it out
Do Not Let a Small Problem Become a Cold Night.
Heating repair across Fairfax, Loudoun, Arlington, and Prince William Counties, diagnosed to the failed link rather than guessed at, by a team licensed for the heating and the electrical behind it.
Call 703.225.8222Get a Free EstimateLicensed in Virginia. Electrical and HVAC Contractor License 2705181607.