Open 24/7 for emergencies
A propane furnace for a Rectortown house is $4,285 to $14,040 installed, your cooling left as it is. Propane outnumbers natural gas fifty to one in the ZIP.
Price range
$4,285-$14,040
8yrs @ 7.99%
$61/mo
15yrs @ 9.99%
$46/mo
Monthly figures on the starting price, the whole price financed, on approved credit. The lender sets the final terms. How financing works
Get your price in writing
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Rather talk now? (703) 997-9757
5.0 stars across 1,132 reviews
Two of our heating technicians beside a gas furnace, the cooling coil on top of it and the water heater to the right.
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 our estimator runs on, for a gas furnace on its own, 2 to 5 tons, keeping the air conditioner you have. A single-stage furnace in a small house sits near the bottom; a modulating one in a big house, near the top.
A gas furnace alone, keeping your air conditioner, installed
$4,285 to $14,040
or $71/mo at 0% APR for 60 months
A furnace and air conditioner together, installed
$8,898 to $23,000
or $148/mo at 0% APR for 60 months
Repair diagnostic visit, if it may be worth fixing
$99
Monthly figures: 60mo @ 0% APR on each starting price, the whole price financed, on approved credit. Longer plans lower the payment and cost more in total. The lender sets the final terms. How financing works
The HVAC replacement cost estimator narrows it to your house. Then a tech measures, and you get the installed price in writing, at no charge, before anything is ordered.
Natural gas or propane, in a house, a townhouse or a condo, we replace them all. Oil furnaces we don’t.
What’s different in Rectortown
A natural gas furnace is a rarity in Rectortown. In the 20115 ZIP that holds most of the village’s homes, tank propane heats about a fifth of owner homes and utility gas about four in a thousand, so the new furnace draws from the same tank as the old one. A bigger or more efficient furnace can change what the regulator and line must deliver, so tell your propane company the install date.
Size it for the place, not the old label. Warrenton 3 SE, the closest long-record station, sits about 17 miles south at nearly the village’s 514 feet; its January nights bottom out around 25 on average, with some 98 freezing nights a year and about five at 10 or colder. Fauquier County’s building criteria name 17 degrees as the winter design temperature. Worked against your own walls, windows and rooms, that number sets the new furnace’s size. The old one may have been guessed.
Most of the village predates the furnace. The state’s register survey dates 25 of Rectortown’s 54 historic properties to the railroad years, 1880 to 1910, and six to the 1700s, many on stone foundations. There the furnace landed wherever there was headroom, often a cellar under the oldest section or a closet in a later wing. The replacement travels the same route in, so the measuring includes the cellar steps and the doorway.
Propane or not, the furnace won’t fire without electricity: igniter, inducer and blower all run on it, and Northern Fauquier storms take the power with them. When Hurricane Sandy came through in October 2012, forty roads in the zone were blocked by fallen trees or power lines. If you keep a generator, give us its size, and the new furnace’s draw gets checked against it.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
Rectortown’s own ZIP, 20140, is post office boxes only, so the Census Bureau maps no area for it. These are ZIP 20115 as a whole, the Marshall ZIP area that holds nearly nine in ten of the Rectortown Census place’s homes, Marshall included.
When it’s time
Where a heat pump carries most of the heating and a propane furnace only takes the coldest nights, the furnace can reach twenty-five with few hours on it, but its parts age by the calendar. If the first cold snap finds it starting, stopping and locking out, price the replacement before the next one.
We replace propane furnaces as well as natural gas ones. The new furnace is set up for propane before it’s lit, and the quote is written for your house.
It’s the wall that keeps the burner’s exhaust out of the air the furnace blows through the house. Nobody patches one; a crack ends the repair conversation.
Permits, locally
Fauquier County wants a permit for any fuel-fired appliance, so a gas or propane furnace replacement is permit work even in the same spot. Trade permits need no plans, and usually no zoning approval. Source.
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing who installs it
Questions to ask anybody who quotes you, us included.
Ask to see the heat loss number for your house, figured against the County’s 17 degree design temperature. In a village house added onto more than once, the old furnace’s size is the least trustworthy figure in it.
Ask how they picked the size. Copying the old nameplate repeats whatever was guessed when the house was built.
A new furnace has to work with the coil and the outdoor unit already there. Ask whether they looked at both before quoting a furnace on its own.
A good company puts the repair price next to the replacement range and lets you choose. Already holding somebody’s big number? Take the free second opinion first.
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.
Hard working crew that removed old system and installed new system in a professional manner.
Where we work
Next door to Rectortown: Upperville, Marshall, Delaplane, The Plains and Broad Run.
Questions
Usually, if the floor stays dry and there’s room to service it. A furnace on a damp cellar floor can rust from the base, so where the cellar takes water in a hard rain, the new one goes up on a pad.
No. The price book doesn’t change by town: a propane furnace here is $4,285 to $14,040 installed, and the HVAC replacement cost estimator narrows it to your house before anybody visits.
$4,285 to $14,040 installed for a gas furnace on its own, keeping the air conditioner you have; size and efficiency set where yours lands. A furnace and air conditioner together run $8,898 to $23,000. The HVAC replacement cost estimator gives your house its own number.
Fix the small parts on almost any furnace. Past fifteen years, with a repair over a third of the price of a new one, replacing usually wins. Not sure which you’re looking at? The diagnostic visit is $99, and the tech prices the repair before starting it.
Ready when you are
Call, or send the form at the top. A tech measures the house and puts the installed price in writing before anything is ordered, and if the old furnace is worth fixing, 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 Rectortown 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.