Open 24/7 for emergencies
Off base, in the Town of Quantico, boilers get a $99 tune-up from us, and new ones cost $9,900 to $16,500 installed.
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 Quantico
The Town of Quantico is bounded by Marine Corps land and the Potomac, the town that cannot grow. Family housing aboard the base, 1,137 homes, is owned, managed and maintained by Liberty Military Housing, so a boiler on base goes to Liberty. Our boiler work in Quantico is in the Town, where the Census counts 310 occupied homes, 260 of them rented, and 50 owned.
Those 50 owner homes run old, the typical one built in 1950. Gas heats close to six in ten of them and oil close to one in five, with electricity the rest, and close to half are townhouses. A count this small carries wide margins, but the picture is a gas boiler in an older row house, venting up a chimney. Any oil boilers in town are outside our work.
In the Town, Prince William County’s Building Development Division issues building and trade permits, and the Town handles its own zoning approvals. A boiler that fails mid-winter can be replaced before the paperwork, provided the Division has the application by close of the next working day. Water comes from the Town’s own small system, which buys treated surface water from the base’s Mainside system.
The Marine Corps air station’s weather record, 1.6 miles south-southwest at the river’s edge, averages about 4,000 heating degree days, a January low of 28, and a couple of nights a year at 10 or colder. That’s a mild winter by Northern Virginia standards, which lets a tired boiler limp along until a hard cold night finds it out.
What it’s telling you
An owner of a duplex or a small building in Quantico may have a boiler per unit, of different ages. Ask for each one on its own written line after the $99 diagnostic, so the worst gets replaced first and the rest get the repair they need.
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.
Choosing who works on it
Questions to ask anybody who quotes you, us included.
With most homes in the Town rented, the tenant lets the tech in and the owner pays. Ask whether the written price can go straight to the owner, and whether the tech will explain the problem to whoever’s at home.
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.
…did a great job recommending a new system for a Condo that did not previously have one at all (Old Boiler System). The installation went great.
Where we work
Next door to Quantico: Triangle, Dumfries, Woodbridge, Stafford and Lorton.
Questions
No. Liberty Military Housing owns, manages and maintains family housing aboard Marine Corps Base Quantico, and the base is federal property, so on-base repairs go through Liberty. We work in the Town of Quantico.
Sometimes. Cast iron boilers of that age were built heavy, and when the sections are sound, a new circulator, relief valve or expansion tank keeps one going. When a section cracks or leaks, it’s done. A replacement runs $9,900 to $16,500 installed, and the $99 diagnostic tells you which side of that line yours is on.
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 Quantico 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.