Open 24/7 for emergencies
The diagnostic visit is $99, and a flame sensor cleaned is $95 to $180 from our published price book.
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Gas furnace and heat pump repair in Reston, for 1970s clusters, North Point houses and Town Center condos, priced from our book before a panel comes off.
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 Reston
Boilers are rare in Reston. Homes here heat with a gas furnace or with electricity, and the ZIP code tells you which. About seven in ten owners heat with gas in 20190, and about two in three in 20194. In 20191, around Hunters Woods and South Lakes, it flips: about six in ten heat with electricity.
Electric heat in a 20191 house most often means a heat pump in the yard and an air handler in a closet or attic, holding backup heat strips; a few skip the heat pump and run the strips alone, an electric furnace. Nearly half of 20191’s homes went up in the 1970s, so that air handler is rarely the first one.
North Point and the rest of 20194 went up almost all at once: more than eight in ten homes there date from the 1980s and 90s. Their first furnaces are mostly long gone, and the replacements are often high-efficiency models that vent through plastic pipe and make water. A clogged condensate trap, a failed pump or a pressure switch that won’t close leaves those as cold as a worn-out igniter.
In 20190, more than half the homes are in condo and apartment buildings. The furnace or air handler in a unit’s closet is usually the owner’s to fix, while the building may own the flue, the gas piping or the roof the heat pump sits on; the condo documents draw that line. A repair needs no permit, and nothing from Reston Association.
Neighborhood by neighborhood
Census figures for each place, and what that usually means for the heat. Median year built and heat count owner-occupied homes only.
| Place | Median home built | Most homes are | Heated with | What the heat usually is |
|---|---|---|---|---|
| Reston | 1981 | condo and apartment buildings, about 4 in 10 | gas, about 5 in 10 | 1980s and 90s houses, most on their second furnace. |
| Great Falls Crossing | 1993 | single-family houses, about 9 in 10 | gas, about 8 in 10 | 1980s and 90s houses, most on their second furnace. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
What you’d notice
A high-efficiency gas furnace drains water while it heats, and in a Reston townhouse or condo that water often leaves through a small pump in the same closet. When the pump or its line fails, water spreads across the floor, and in a stacked condo it heads for the ceiling below. Shut the furnace off, mop up and call.
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.
The burners fire and go out a few seconds later, over and over. That’s usually a dirty flame sensor, and cleaning it takes about ten minutes.
Safety and paperwork
Fairfax County Fire and Rescue says to have the heating system cleaned and checked by a professional every year, and to keep anything that burns at least three feet from the furnace and the water heater. Source.
Fairfax County Fire and Rescue names a faulty gas furnace or water heater as a carbon monoxide source, says to have gas appliances inspected every fall, and to put a CO alarm on every floor. 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.
In an all-electric Reston house the strips in the air handler are the only backup, and a burned-out one hides until the coldest night. Ask whether the tech reads each strip’s current draw.
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.
Technician Steven came out to look at our heat that was not working properly. He was extremely pleasant and knowledgeable. He went out of his way to explain the issue and our options for the repair. We felt like we were in good hands. Great customer service.
Where we work
Next door to Reston: Herndon, Great Falls, Oakton, Vienna and Sterling.
Questions
We work on boilers in Reston too, though they’re rare here. Reston homes run gas furnaces, heat pumps and electric furnaces. A new igniter on a gas furnace runs $240 to $410; a blower motor, on any of the three, runs $670 to $2,400.
No. We repair gas and propane furnaces and heat pumps, not oil burners. In Reston it rarely comes up: fewer than one owner home in a hundred heats with oil, and about as few with propane.
Only where gas service reaches your street; the gas company can confirm it. The vent is the other hurdle: a new pipe out a side wall changes the outside of the house, and that needs Reston Association’s approval unless a guideline or your cluster’s standards say otherwise.
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 Reston 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.