Boiler repair and replacement in Ashburn.
Ashburn has few boilers, and most burn gas; the tune-up is $69 and a new boiler lands in $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
Book your boiler visit
- Hot water boilers, gas and propane
- Navien, Weil-McLain and Force
- Heating and plumbing teams
Ashburn was built mostly after 2000, on ducts and furnaces, so a boiler is the odd house on the block.
Seven in ten owner homes in Ashburn went up since 2000, which puts most of the town on gas furnaces and heat pumps rather than boilers. When we do find a hot water boiler here, it’s usually in one of the older houses from the 1980s and 90s, about one in four of the town’s owner homes, and it has often gone years without a look.
More of our Ashburn visits are about replacing a heating and cooling system than in any other town where we work regularly, and water heaters come up more than almost anywhere. So when an Ashburn boiler comes up, the question is usually the same one: fix it, replace it like for like, or move the house to a furnace or a heat pump. The $99 diagnostic answers the first part, and the written price covers the rest.
Gas heats about eight in ten owner homes, so an Ashburn boiler is most likely a gas one. A condensing boiler or a Navien combi runs $12,782 to $16,500 installed and vents out the wall in white plastic pipe. A cast iron boiler on a chimney is the rarer job here, and it sits in the $9,900 to $16,500 range with everything else. Loudoun County wants a permit to swap a gas furnace or water heater, and since October 2025 a same-BTU replacement in the same spot needs no plans; ask the installer how the County is treating boiler swaps under that rule.
Ashburn’s heating and cooling service calls lean toward winter more than any other town’s, and a boiler that quits in a January cold snap leaves a cold house fast. Townhouses make up about four in ten Ashburn owner homes, condos about one in five. A townhouse boiler gets the $69 tune-up in its closet like any other, while a condo boiler may be the building’s, so check with the association before booking.
Where the boilers are across Ashburn.
Census figures for the owner-occupied homes in each place, and what a boiler call there usually meets.
| Place | Median home built | Most homes are | Heated with | What a boiler call usually meets |
|---|---|---|---|---|
| Ashburn | 1998 | single-family houses, about 4 in 10 | gas, about 8 in 10 | 1980s and 90s houses, mostly forced air; boilers in the older ones. |
| Brambleton | 2011 | townhouses, about 5 in 10 | gas, about 8 in 10 | New houses, almost all forced air. |
| Broadlands | 2004 | single-family houses, about 6 in 10 | gas, about 9 in 10 | Built since 2000, almost all forced air. |
| Loudoun Valley Estates | 2013 | townhouses, about 6 in 10 | gas, about 8 in 10 | New houses, almost all forced air. |
| Belmont | 2005 | single-family houses, about 6 in 10 | gas, about 9 in 10 | Built since 2000, almost all forced air. |
| Moorefield | 2015 | townhouses, about 6 in 10 | gas, about 7 in 10 | New houses, almost all forced air. |
| One Loudoun | 2015 | townhouses, about 4 in 10 | gas, about 7 in 10 | New houses, almost all forced air. |
| University Center | 1996 | condo and apartment buildings, about 4 in 10 | gas, about 8 in 10 | Condo buildings: a central boiler is usually the association’s. |
Ashburn houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey, owner-occupied homes unless it says otherwise.
Ashburn
- Built before 1980hardly any Census
- Built since 2000about 7 in 10 Census
- Most homes aresingle-family houses, about 4 in 10 Census
- Heated withgas, about 8 in 10 Census
- Rentedabout 3 in 10 Census
- Houses built here since 2000 almost all heat with forced air, so a boiler is the exception. When we find one, it gets the same tune-up and the same written price.
- Most homes here heat with gas, so a boiler tune-up here starts with the gas pressure and the flame.
What boiler repair and replacement cost in Ashburn.
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 $69 a system, regularly $99.
- High-efficiency condensing boiler or combi boiler, installed$12,782 to $16,50060mo @ 0% $213/mo
- Cast iron boiler on the chimney, replaced like for like, installed$9,900 to $13,69060mo @ 0% $165/mo
- Boiler tune-up, one system$69, regularly $99
- Boiler repair diagnostic visit$99
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.
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
What your boiler is telling you in Ashburn.
It’s the only boiler on the street
A boiler in Ashburn tends to get forgotten, since the fall checklists going around the neighborhood are written for furnaces. Kettling, a dripping relief valve or a radiator cold at the top are the early signs, and each one is cheaper to fix in October than in January. Loudoun’s fire and rescue system uses the fall clock change as the reminder to check CO alarms, one outside each sleeping area and on each level; that weekend is a good one to book the boiler too.
What the county says about boilers in Ashburn.
Loudoun County
Loudoun County requires a permit to swap a gas water heater or furnace. Since October 2025, a replacement that keeps the same BTUs in the same spot needs no plans. Source.
In its fall clock-change reminder, Loudoun County’s fire and rescue system tells residents to check their carbon monoxide alarms, and recommends one outside each sleeping area and on each level of the home, tested monthly. Source.
Loudoun County Fire and Rescue says to have heating equipment and chimneys cleaned and inspected every year by a qualified professional, and to keep anything that can burn at least three feet from all heating equipment. Source.
How to pick who works on your boiler in Ashburn.
Questions to ask anybody who quotes you, us included.
Do they work on boilers, or mostly furnaces?
Ask how often they open a boiler, and whether they install Navien, Weil-McLain or Force.
Can they handle both halves of it?
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.
Does the quote say how it vents?
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.
What our customers say.
…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.
4.95 stars across 1,131 reviews. Read them on our reviews page.
Boiler questions from Ashburn.
Is it hard to find boiler service in Ashburn?
It can be, since most Ashburn calls are furnaces and heat pumps. Ours include hot water boilers on gas or propane, from a $69 tune-up to a $99 repair diagnostic to a new boiler at $9,900 to $16,500 installed.
Should I replace my Ashburn boiler with a furnace?
If the house already has ducts for the air conditioning, a gas furnace or a heat pump on those ducts is an option we can price beside a new boiler. If it doesn’t, a new boiler is usually the simpler job.
Do you work on steam or oil boilers?
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.
Boiler service in the towns next door.
- Boiler repair and replacement in Sterling
- Boiler repair and replacement in Leesburg
- Boiler repair and replacement in Aldie
- Boiler repair and replacement in Herndon
- Boiler repair and replacement in Chantilly
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Get the boiler looked at before the cold week.
Call any time: we run 24/7 emergency service. Or book online and pick a window. A tune-up is $69, a repair starts with the $99 diagnostic, and a new boiler gets a written price before any work.
SwiftPro Heating, Cooling & Plumbing is a licensed, BBB Accredited (A rating), independently owned heating, cooling and plumbing company in Chantilly, serving Ashburn and the rest of Northern Virginia. Virginia contractor license #2705192276. 4.95 stars across 1,131 reviews on Google, Angi, Yelp, the BBB and Facebook. SwiftPro maintains a dedicated HVAC team and a dedicated plumbing team.
SwiftPro Heating, Cooling & Plumbing, 4230 Lafayette Center Dr, Suite N, Chantilly, VA 20151, (703) 997-9757. Book online, read our reviews, or see every town we serve.