Open 24/7 for emergencies
The diagnostic visit is $99, and a flame sensor cleaned is $95 to $180 from our published price book.
Get your price in writing
Send this and the office calls or texts you back to set a time.
We’ll call or text this number about your request. By sending it you agree to our terms and privacy policy.
Rather talk now? (703) 997-9757
Furnace and heat pump repair in Bluemont for propane, electric and wood-heated houses on both sides of the county line.
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 Bluemont
Heating here is a patchwork. In ZIP 20135, electricity heats 54 percent of owner homes, wood or another fuel 24 percent, propane 14 percent, oil 4 percent and natural gas just 3. So the system you call about is often a heat pump, an electric unit or a propane furnace, and the repair differs. A propane furnace that will not light is often an igniter, $240 to $410, or a dirty flame sensor, $95 to $180. We do not work on oil burners.
The ridge sets the pace. Mount Weather totals 5,302 heating degree days a year against 4,942 at Purcellville, and it logs 27.8 days when the high never gets above freezing, to 11.6 in the valley. The village sits closer to the valley’s elevation. A furnace on this slope runs long hours, and the blower and its wheel are what tire first. A blower motor is $670 to $2,400; a blower wheel is $300 to $440.
Snow and storms add their own failures. The January 2016 blizzard left 36.6 inches near Bluemont, and in February 2010 outages were reported throughout Loudoun County from snow-loaded lines. Even a propane furnace depends on the power line, because its blower and its igniter run on electricity. When the lights come back and the furnace does not, a control board is one of the parts to check, $550 to $1,180. Snow drifted over a side-wall intake or exhaust can also stop a high-efficiency unit cold.
Loudoun County Fire and Rescue says to have heating equipment and chimneys cleaned and inspected every year by a qualified professional, and to keep anything that can burn at least three feet from all heating equipment. With nearly one owner home in four heating with wood or another fuel, that advice reaches stoves and chimneys too. If an estimate starts to look like a replacement, a furnace alone is $4,285 to $14,040, and a gas or propane swap is permit work in Loudoun and in Clarke County.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
ZIP 20135 as a whole: about seven in ten of its homes are in Clarke County, most of the rest in Loudoun around the village, and a few in West Virginia.
What you’d notice
Often a safety is doing its job. On a propane or gas furnace it can be a dirty flame sensor, $95 to $180, or a vent blocked by drifted snow. Bluemont’s 36.6 inches in January 2016 shows how much snow can pile against a side wall. Clear the intake and exhaust by hand first, and call if the furnace still will not hold a flame.
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
Loudoun County Fire and Rescue says to have heating equipment and chimneys cleaned and inspected every year by a qualified professional, and to keep anything that can burn at least three feet from all heating equipment. Source.
In its fall clock-change reminder, Loudoun County’s fire and rescue system tells residents to check their carbon monoxide alarms, and recommends one outside each sleeping area and on each level of the home, tested monthly. 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.
The year on the rating plate matters in a ZIP where the median owner home dates from 1981, though your furnace may well be newer than the house. A good tech reads you the age, prices the repair, and says plainly when a second big repair means looking at a new one. A replacement shouldn’t be pushed on a first visit.
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.
Called in the morning for a broken furnace. The technician came out same day.
Where we work
Next door to Bluemont: Round Hill, Philomont, Purcellville, Upperville and Middleburg.
Questions
The 1981 is a median for ZIP 20135, and your furnace may be newer than the house, so read the rating plate. If the trouble is a small part like an igniter or a flame sensor, repair it. If it is a cracked heat exchanger or a second big part in one season, set it against a new furnace alone, $4,285 to $14,040. The diagnostic visit, $99, sorts out which one you have.
Loudoun County Fire and Rescue says every year, by a qualified professional, and it names chimneys alongside the equipment. Mount Weather’s median first fall freeze is November 1 and Purcellville’s is October 25, so book the check for early October, before the first cold night, when the furnace has not yet been asked to run.
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 Bluemont 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.