Open 24/7 for emergencies
Broad Run’s boilers burn propane, since none of its owner homes heat with utility gas: tune-ups are $99, new boilers $9,900 to $16,500.
Price range
$9,900-$16,500
8yrs @ 7.99%
$140/mo
15yrs @ 9.99%
$106/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 in a Northern Virginia basement. The same team tunes up, repairs and replaces boilers.
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
A new boiler runs $9,900 to $16,500 installed, the range of our own boiler replacements; a condensing or combi boiler lands at $12,782 to $16,500. A tune-up is $99 a system.
High-efficiency condensing boiler or combi boiler, installed
$12,782 to $16,500
or $213/mo at 0% APR for 60 months
Cast iron boiler on the chimney, replaced like for like, installed
$9,900 to $13,690
or $165/mo at 0% APR for 60 months
Boiler tune-up, one system
$99
Boiler repair diagnostic visit
$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
A repair starts with the $99 diagnostic. If the fix is a circulator pump, a valve or an expansion tank, you get that price in writing before we start, and you decide.
Want a closer number before anyone comes out? The boiler estimator asks a few questions about yours and shows the range for that job.
What’s different in Broad Run
The Census counts 660 owner homes in ZIP 20137, all of them detached houses, and none of them heats with utility gas. Just over half use electricity, about 29 percent burn propane and about one in seven still burn oil. A hot water boiler out here usually burns propane delivered by truck, so the regulator and the line from the tank matter as much as the boiler does.
The oil burners in the one owner home in seven that still runs on oil aren’t ours to work on, but a propane boiler on the same radiators or baseboard, or a heat pump, is.
The typical owner’s house here went up in 1979, just over half are older than 1980 and about one in six is older than 1960. Those houses mostly vent their boilers up a chimney in metal pipe. Keeping the chimney means another cast iron boiler like the one coming out; going condensing, at $12,782 to $16,500, trades the chimney for a plastic vent through the wall.
Most of Broad Run is in Fauquier County, which wants a permit for any fuel-fired appliance, so a propane boiler swapped in the same spot still takes one; the Prince William side, where about one home in six sits, has the same rule for gas and propane. At about 415 feet near the Bull Run Mountains, January’s average low sits near 25 degrees and about 98 nights a year reach freezing, so a boiler here carries the house for months. Broad Run sits beside Thoroughfare Gap, 2.0 miles from the Bull Run Mountains, and Fauquier sizes heat for a 17 degree day. In April 2017 an EF0 tornado snapped trees along Airlie and Blantyre Roads near the hamlet, and a February 2014 storm left 14.0 inches of snow 2.9 miles south-southwest.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
ZIP 20137 as a whole: every Broad Run address. About one home in six of them is on the Prince William County side.
What it’s telling you
On propane, a tired regulator or low line pressure shows up as a soft, uneven flame and a loop that takes ages to heat. That’s a fix at the regulator or the line, not a reason for a new boiler. USGS says every private household in Fauquier County draws from a well, so a boiler’s fill water comes from yours, and a loop that keeps taking on water is leaking somewhere, with the oxygen in that fresh water rusting it from inside.
A new Weil-McLain gas boiler installed by SwiftPro in a Northern Virginia basement, with copper near-boiler piping and a bank of Taco zone valves feeding the heating loops.
Safety and paperwork
Outside the town limits, Fauquier County issues the permit. It wants one for any fuel-fired water heater, propane included, and for any heater being moved; an electric one swapped for a similar unit in the same spot counts as an ordinary repair. Trade permits go out over the counter the day the application comes in. Source.
Fauquier County counts swapping an electric appliance for a similar one in the same spot as an ordinary repair that needs no permit. Moving an appliance to a new spot takes one. Source.
Fauquier County Fire Rescue takes requests for help getting smoke and carbon monoxide alarms through a form on its Public Education page. Source.
Prince William County requires a permit to replace a gas or propane furnace or a gas appliance such as a water heater, even like for like. Replacing an electric water heater with one the same size in the same spot needs no permit. 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.
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.
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing who works on it
Questions to ask anybody who quotes you, us included.
Ask for the gas pressure measured at the boiler while it fires, not a glance at the tank gauge. A propane boiler set to the wrong pressure runs badly however new it is.
A hot water boiler is half heating system (the burner, gas valve, flue and controls) and half plumbing (the water loop, circulator pumps, expansion tank, relief valve and zone valves). We hold a Virginia Class A license and run separate heating and plumbing teams, so each half gets a tech who does that trade every day.
A new boiler can stay on the chimney or vent out the wall in plastic pipe. A good quote says which, and whether the chimney needs a liner, because that’s where two quotes for the same boiler usually split.
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.
…I had the pleasure of working with Efrain and Alex last year on a Boiler heater. The quality of work and total professionalism contributed 100% to my decision…
Where we work
Next door to Broad Run: The Plains, Haymarket, Gainesville, Marshall and Warrenton.
Questions
Yes, that switch is ours to price, though we don’t work on the oil boiler itself. The quote names the new boiler, the line from the tank and the venting, and Fauquier County wants a permit for the new fuel-fired appliance.
Hard. About 98 nights a year reach freezing here and January’s average low is near 25 degrees, which is why the $99 tune-up belongs before that stretch: system pressure, the expansion tank’s air charge and the circulator, checked while it’s still mild out.
No. We work on hot water boilers, the kind that heat radiators or baseboard, on natural gas or propane. If yours is steam or burns oil, we’ll tell you on the phone, and a switch to a heat pump or a gas or propane boiler is ours to price.
Ready when you are
Call any time: we run 24/7 emergency service. Or send the form at the top. A tune-up is $99, a repair starts with the $99 diagnostic, and a new boiler gets a written price before any work.
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 Broad Run 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.