Open 24/7 for emergencies
Catlett heating repair opens on a $99 diagnostic visit. Four in five homeowners here heat with electricity or propane; the Census counts none on natural gas.
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Rather talk now? (703) 997-9757
5.0 stars across 1,132 reviews
Two of our technicians in a Northern Virginia utility room, between the furnace and the water heater.
Licensed and insuredVirginia Class A contractor #2705192276
24/7 emergency serviceOften same-day, and we will tell you honestly when we can get there.
Our own HVAC installersA dedicated heating and cooling team, separate from our plumbers
Price in writing firstYou see every option priced before anything is ordered
What it costs
The same price book as the rest of our site. The diagnostic visit is $99, and the tech prices the repair before starting it.
Flame sensor cleaned
$95 to $180
Igniter or flame sensor replaced
$240 to $410
Blower wheel pulled and cleaned
$300 to $440
Thermostat replaced
$300 to $640
Control board
$550 to $1,180
Blower motor
$670 to $2,400
Repair diagnostic visit
$99
Often same-day, and we will tell you honestly when we can get there.
With Comfort+ membership, $20 a month or $199 a year, the diagnostic visit is included, any service is 15% off, and a heating maintenance visit comes every fall.
What’s different in Catlett
Fauquier County’s building criteria list 17 degrees as the winter design temperature, so heating systems here are sized to keep a house warm when it’s 17 outside. Plenty of Catlett winters go colder. NOAA’s Warrenton 3 SE co-op, about seven miles west-northwest, averages a January low just under 25 and five or so nights a winter at 10 degrees or colder, and it dropped to 3 degrees on January 7, 2014. Late January 2026 brought wind chills between zero and 10 below over the Piedmont.
Electric heat covers half of 20119’s owner homes, mostly as heat pumps with strips behind them. On a night near the design point, a heat pump running without a break and leaning on its strips is doing its job. Close to 100 nights a year here fall to freezing or below, from a median first frost around November 1 to a last around April 9.
About 29 percent run on propane, delivered to a tank on the lot. A propane furnace fails at the same few parts a gas one does: a dirty flame sensor, cleaned for $95 to $180, or a cracked igniter, $240 to $410. The difference is the tank. A long cold spell drains it faster than you’d guess, and a furnace that clicks and won’t light may just be out of fuel. Smell propane indoors? Get out, then call your propane supplier from outside.
Snow and ice bring their own calls. The Warrenton station measured 20.5 inches of new snow on January 23, 2016. A drift like that buries a heat pump on a low pad, or covers the plastic vent pipes a high-efficiency propane furnace breathes through, and either one shuts the heat off. The December 16, 2020 ice storm left up to half an inch at Opal, in southern Fauquier, and a heat pump cased in ice that thick needs a tech, not another defrost.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
ZIP 20119 as a whole: every Catlett address, the village included. The Census place for the village alone has too few homes for steady figures.
What you’d notice
In the teens, a house that holds 65 with the thermostat at 68 may just be at the edge of what the system was sized for. On a 35 degree afternoon it means something’s wrong: low refrigerant, a stuck defrost, or backup strips that never come on.
A few minutes of cool air in winter is a defrost cycle, and that’s normal. Cool air all the time, or emergency heat running all day, is a call.
Dust burning off the heat exchanger smells for the first few minutes of the season, then stops. A gas smell is different: leave the house and call your gas company from outside.
Safety and paperwork
Fauquier County Fire Rescue takes requests for help getting smoke and carbon monoxide alarms through a form on its Public Education page. Source.
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing who fixes it
Questions worth asking anybody who comes out, us included.
Propane runs at a much higher gas pressure at the burners than natural gas, and a propane furnace has its own orifices and its own figure on the rating plate. Have the tech read the manifold pressure against that figure. Set wrong, the burners run lazy or too hot.
Flame sensors, igniters and control boards all have a going rate. A tech who can’t tell you the number before starting is asking you to find out afterwards.
Getting the burners lit is half a heating call. Ask whether they check the flue and test for carbon monoxide while the panel’s open.
A big repair on a furnace past 15 or 20 years deserves a replacement price next to it. A good tech puts both numbers in front of you and lets you choose.
Two of our crew going over a work order before the day's calls.
From our Google reviews
5.0 stars across 1,132 reviews. Read them on our reviews page.
Definitely recommend this company! Steven came out was able to quickly diagnose the issue with our heating system and explain the next steps to fixing the issues.
Where we work
Next door to Catlett: Calverton, Casanova, Midland, Nokesville and Bristow.
Questions
A heat pump usually has two breakers, one outside and one for the air handler, and a propane furnace has a service switch like a light switch near the unit. Make sure each is on, then give the thermostat a few minutes. If nothing happens, a surge may have fried the control board, $550 to $1,180; we’d confirm it on a $99 diagnostic visit.
The diagnostic visit is $99. A flame sensor cleaned is $95 to $180; an igniter or flame sensor replaced, $240 to $410; a control board, $550 to $1,180; a blower motor, $670 to $2,400.
Fix the small parts on almost anything. Before a big repair on an old furnace, look at the replacement number: a furnace alone, keeping the air conditioner you have, runs $4,285 to $14,040 installed, and the HVAC estimator gives your number in about a minute. From about $71 a month at 0% APR for 60 months, the whole price financed, on approved credit.
Ready when you are
Call, or send the form at the top. The tech prices the repair from the book before starting, and if the furnace is at the end of its life you’ll hear that first.
SwiftPro Heating, Cooling & Plumbing
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
Virginia Class A contractor license #2705192276
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company in Chantilly, serving Catlett and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 1,132 reviews on Google, Angi, Yelp, the BBB and Facebook. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team.
From SwiftPro Heating, Cooling & Plumbing in Chantilly. Housing figures are the Census Bureau’s American Community Survey, 2020 to 2024, for each place named; permit, water and sewer facts link to each office’s own page and were checked in September and October 2026.