Based in Leesburg, VA

Furnace Repair in Centreville, VA

Furnace repair in Centreville, VA when the heat quits, from the same crew Centreville homeowners call for plumbing.

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Getting the Heat Back On in Centreville

When the house is cold and the furnace will not respond, Brick Street Plumbing Heat & Air handles furnace repair in Centreville, VA at any hour, with no overtime charge for nights or weekends. Our licensed technicians work on gas furnaces, electric air handlers and the heat pumps paired with them. Most no-heat calls trace back to a single failed part in the startup sequence, such as an ignitor, flame sensor or pressure switch, and we test each step until we find it. Call (240) 969-4911 and we will talk you through the next step.

Centreville winters are not extreme, but cold snaps arrive every year, and a furnace that has sat idle since spring often shows its weak spots on the first chilly night of fall. Because our technicians are dual-certified, the same company that fixes your heat can also handle a frozen pipe, a water heater or a slow drain. That is why plenty of people who first find us looking for a plumber in Centreville end up calling us for heating too. More on our local work is on the Centreville page.

HOW A FURNACE STARTS

Where the Startup Sequence Breaks Down

A modern gas furnace follows the same order every time the thermostat calls for heat. The inducer motor starts and clears the flue. A pressure switch confirms the draft. The hot surface ignitor glows, the gas valve opens and the burners light. The flame sensor proves there is a flame, and after a short delay the blower pushes warm air through the ducts. If any step fails, the control board stops the sequence and often flashes an error code. That is useful information. A furnace that hums, clicks and gives up after a few seconds is telling us exactly where in the chain to look. We read the code, test the part and replace only what failed. Our furnace repair page goes into the common causes in more depth.

Furnace Problems We See Most in Centreville

Most have a clear cause and a direct fix.

Blowing cold air

The blower runs but the burners never light, often because of a failed ignitor or a flame sensor coated with residue.

Lights, then shuts off

A dirty flame sensor is the classic cause. Cleaning or replacing it usually restores steady heat.

Overheating and cycling

A clogged filter or blocked return makes the furnace run hot and trip its limit switch. Start by changing the filter.

Loud or squealing blower

Worn motor bearings or a failing belt on older units make noise before they quit.

Uneven heat between floors

Duct layout, closed registers or a weak blower can leave upstairs bedrooms cold while the basement stays warm.

Yearly tune-ups

A fall check cleans the burners and sensor and tests the safety controls before the first cold night.

SAFETY FIRST

When to Shut the Furnace Off and Call

Some furnace problems are about comfort. A few are about safety. If your carbon monoxide alarm sounds, get everyone outside and call for help from there. If you smell gas, leave the house without flipping switches and call your gas company from outside. Other warning signs that justify turning the system off: a yellow, flickering burner flame instead of a steady blue one, soot around the furnace cabinet, or a burning smell that does not fade after the first run of the season. Our technicians inspect the heat exchanger and venting on those calls. We also cover neighboring towns across our service area, and if the cold snap left you with a burst pipe, our plumbing repair team can handle that on the same call.

Cold House in Centreville?

24/7 heating repair, no overtime fees.

Call (240) 969-4911 and a licensed technician will get your furnace running again.

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(240) 969-4911

Based in Leesburg, VA.

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Frequently asked questions

Why is my furnace blowing cold air?

A furnace blows cold air when the blower runs but the burners are not lighting or are shutting off early. Common causes include a failed ignitor, a dirty flame sensor, a tripped limit switch from a clogged filter or a thermostat set to fan on rather than auto. Check the thermostat and filter first. If those are fine, a technician can test the ignition parts.

Why does my furnace turn on and then shut off after a few seconds?

That pattern usually means the flame sensor is not detecting the burner flame, so the control board shuts the gas off as a safety measure. Residue on the sensor rod is the most common cause and is a routine fix. A weak pressure switch or a venting problem can create a similar cycle, which is why we test rather than guess.

Can a dirty air filter stop a furnace from working?

Yes. A clogged filter restricts airflow, so heat builds up inside the furnace until the high-limit switch shuts the burners off. The furnace may cycle on and off or stop heating entirely. Repeated overheating also stresses the heat exchanger. Replacing the filter is the first thing to try when heat becomes weak or unreliable.

Is a burning smell from my furnace normal in Centreville?

A dusty burning smell the first time you run the heat in fall is normal and should fade within an hour or so as dust on the heat exchanger burns off. A smell that lingers, smells electrical or comes with smoke is not normal. Turn the furnace off at the thermostat and the service switch, then call a technician to inspect it.

Do you also do plumbing work in Centreville?

Yes. Brick Street is a plumbing and HVAC company, and our technicians are dual-certified. In Centreville we repair leaks, clear drains, service water heaters and sump pumps, and handle sewer line work, along with heating and cooling. One call covers both trades, 24/7, with no overtime fees. Mention every issue when you call so the technician comes prepared.

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