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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Heat pump and propane furnace repair in Nokesville, 20181, with the price in writing before the 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 Nokesville
Electric heat leads by a mile here: about seven in ten owner homes in the village and more than half across the whole ZIP. Most of it is a heat pump with electric strips behind it for the coldest hours. When one can’t keep up, the strips quietly take over, the house stays warm and the bill jumps. The usual reasons are a failed defrost board, a stuck reversing valve, a slow refrigerant leak or a coil packed with debris.
Propane is the second fuel, about two homes in ten, piped from a tank in the yard or one buried beside the house. A propane furnace has the same parts as a gas one, flame sensor, igniter, inducer, pressure switch, set up for a different gas pressure. It also has a failure gas customers never see: an empty tank.
Piped natural gas comes third, 459 owner homes across 20181 by the Census count, nearly all of them out past the village. Those furnaces take the same repairs as the propane ones, set for the lower pressure of the gas main. When any furnace finally gives out, Prince William County’s replacement guidelines skip plan review only when the new equipment burns the same fuel, so a switch to a heat pump gets reviewed as a change. The HVAC estimator prices a heat pump or a propane furnace first.
A winter storm out here can take the power, and with it the heat pump, the furnace blower and the well pump at once. If you have a generator, check that the furnace or air handler circuit is actually on it, not just the refrigerator and the well. Our Clifton heating guide goes through propane, wells and outages one town over.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
ZIP 20181 as a whole: every Nokesville address, the village included.
The Census Bureau’s Nokesville place: the village and the land right around it.
What you’d notice
A furnace with an empty tank looks just like a broken one. Read the gauge on the tank first; if it ran dry, have the propane company look the system over and relight it before calling a repair in. If there’s fuel and it still won’t fire, that one’s ours.
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
Prince William County Fire and Rescue says to have a qualified technician inspect the heating system and chimneys every year, to make sure nothing blocks the fumes from venting out of the house. Source.
Prince William County Fire and Rescue lists furnaces and water heaters among the household sources of carbon monoxide, and says to put a CO alarm outside each sleeping area and on every level of the home and to test it 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.
Propane, yes. Oil burners, no: we don’t work on oil. About one Nokesville homeowner in five heats with propane. The furnace parts are close cousins of the gas ones, but the gas pressure and the burner orifices differ, and the tech should know which fuel the unit is set up for before adjusting anything.
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.
Excellent work by Tyler and Team. Right from pricing to performing professional installation of new Heat Pump.
Questions
It’s a common pairing where natural gas isn’t an option, and across 20181 only about 15 homes in a hundred heat with it. The heat pump carries the house most of the winter and the propane furnace takes the coldest nights, so the strips rarely run. Our dual fuel guide explains how the handoff between the two is set.
For anything that burns propane or natural gas, yes, every time, from Prince William County, even when the new one matches the old. A heat pump or an electric furnace swapped for the same type in the same place doesn’t. There’s no town office in Nokesville; the County handles all of it.
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 Nokesville 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.