Open 24/7 for emergencies
In Bristow a boiler is rare enough to need someone who knows one: $99 to tune it, $9,900 to $16,500 to replace it.
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
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
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 Bristow
The Census counts 11,087 owner homes in Linton Hall, the place that covers most of Bristow, and about three in four went up since 2000. Builders of those years put in gas furnaces and ducts, and gas heats close to nine in ten owner homes today. A hot water boiler in Bristow is uncommon, which is worth knowing when you call around, since a company that mostly sees furnaces may not carry boiler parts on the truck.
The 1980s and 1990s account for about one in five Linton Hall owner homes, and older houses barely register. If your Bristow house has a boiler, it’s most likely in one of those 1980s or 1990s houses, and a gas boiler from then is old enough now that the heat exchanger, not just the pump, decides whether a repair makes sense.
About three in ten of Linton Hall’s owner homes are townhouses. A boiler in a townhouse lives in a utility closet, often beside the water heater, and a floor-standing cast iron unit there is hard to service and harder to replace. A wall-hung Navien combi at $12,782 to $16,500 installed takes over both jobs, heating the radiators and making the hot water, and gives the closet floor back.
In Bristow a gas boiler swap needs a Prince William County permit, matched unit or not, as any gas appliance replacement does there. If one fails in a cold snap, the code lets the replacement start first, with the application due to the County by the end of the next working day. County Fire and Rescue lists furnaces and water heaters among the household sources of carbon monoxide, and a gas boiler burns the same way, so it wants a CO alarm outside each sleeping area and on every level.
By the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
What it’s telling you
In a neighborhood of furnaces, the fall reminders are written for furnaces and filters. A boiler has no filter to change, so it never nags, and it can go years without anyone looking at it. Put it on the calendar instead: the $99 tune-up in October is the boiler’s version of a filter change.
Close view of a SwiftPro boiler installation in Northern Virginia showing the expansion tank, automatic air vent, fill valve and the vent connector into the chimney.
Safety and paperwork
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 lists any work that alters a home’s heating and air conditioning as permit work, but swapping an electric furnace, heat pump or air conditioning condensing unit for the same type of unit in the same spot is an ordinary repair that 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.
Where gas furnaces far outnumber boilers, ask how recently the tech worked on one, and whether the truck carries a circulator and an expansion tank or has to order them. A boiler that waits on parts in January is a cold house.
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 Bristow: Nokesville, Manassas, Gainesville, Catharpin and Centreville.
Questions
Yes. In a Linton Hall townhouse the boiler usually sits in a closet, and the tech checks the clearances around it as part of the $99 tune-up, since a cramped closet is where venting and combustion air problems hide.
Only if the house has ducts to carry the air. A house built around a boiler usually has radiators or baseboard instead, and adding ducts is a bigger job than a new boiler. Ask for a written price on both, and the choice gets simple.
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 Bristow 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.