Open 24/7 for emergencies
Heating repair in Casanova starts with a $99 diagnostic visit. Out here the heat comes from a heat pump or a propane furnace, never a gas main.
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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 Casanova
At 7:35 on the morning of January 27, 2026, the weather station at Warrenton-Fauquier Airport, about five miles south of Casanova, read 3 below zero, with a wind chill of 14 below. Fauquier County sizes heating systems for a 17 degree night, so that morning every heat pump and furnace around the village was working twenty degrees past the number it was built for. It isn’t only the record mornings, either: NOAA’s Warrenton 3 SE station, three miles west-northwest, averages around 13 days a winter when the afternoon high never gets above freezing.
There’s no gas main to fall back on. The Census counts no utility gas heat at all in ZIP 20119, the area Casanova sits in; a little over half of owners heat with electricity and close to three in ten with propane from a tank on the property. A propane furnace that won’t stay lit usually comes down to a coated flame sensor, $95 to $180 to clean, or a worn igniter, $240 to $410. A high-efficiency propane furnace adds one more cold-weather weak spot, its condensate drain. Where that line runs through an unheated crawlspace or out an exterior wall, it can freeze on a single-digit night, and the furnace shuts itself down until it thaws.
In the village the heat has a different history. Its frame I-houses date from around 1900, built for stoves long before anyone thought of forced air, so whatever heats them now arrived later, sometimes pushing air through a long run of duct to the farthest rooms. When a blower motor tires in a house like that, the far bedroom goes cold first and the system runs longer to catch up. Replacing the motor is $670 to $2,400.
Storms bring the other kind of no-heat call. The March 2, 2018 windstorm sent a wave of calls to Fauquier County 911, mostly for trees and wires down, and the December 2020 ice storm coated Opal, south of Warrenton, in ice half an inch thick. When the lights come back after a night like that, a propane furnace or heat pump that stays quiet may have lost its control board to the surge, $550 to $1,180. Check the breakers and the furnace’s service switch once; if it still won’t start, call us, and we’ll go through the whole system before the next cold night.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
Casanova’s own ZIP, 20139, is post office boxes only, so the Census Bureau maps no area for it. These are ZIP 20119 as a whole, the Catlett ZIP area Casanova sits in.
What you’d notice
A propane furnace that tries to light a few times and then gives up has locked itself out. Usually the flame sensor or the igniter is to blame; now and then the tank is simply low. Glance at the tank gauge, then 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.
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.
On a morning like January 27, 2026, a heat pump’s electric strips carry much of the house. A good tech checks that each strip comes on and draws what it should, so a dead element turns up in October instead of on the coldest day of the year.
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 price and service. Had our AC/heating system replaced. Gave us a great price and top quality install. Can’t say enough good things about them.
Questions
Less than the 2016 blizzard brought. A CoCoRaHS observer about five miles west-southwest of the village measured 30 inches on the ground on January 24, 2016. A heat pump on a low pad disappears in that, and it can’t pull air through a buried coil. Keep the top and sides clear, and when the unit is replaced, ask for a stand that lifts it above the drifts.
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 Casanova 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.