Open 24/7 for emergencies
Boiler work in Reston is rare, but when it happens, a tune-up is $99 and a replacement runs $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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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 Reston
Boilers are rare in Reston. Most homes here heat with gas furnaces or heat pumps, and the Census data backs that up: about half of owner homes heat with gas, and the rest mostly with electricity. The median owner home was built in 1981, a year when forced-air furnaces were the standard. A boiler in Reston is usually in one of the older homes from before 1980, which make up about four in ten of the housing stock. If you have one, it is likely a hot water system with radiators or baseboard, not a steam setup.
Because boilers are uncommon here, the parts that fail are often the same ones we see elsewhere: the circulator pump, the zone valves, or the expansion tank. A boiler that fires but leaves radiators cold usually has an air lock or a pump issue. The $99 diagnostic identifies the specific part, and we give you a written price before any work begins. We do not work on steam boilers, radiant floors, or oil-fired systems. If you are considering a switch to a heat pump or a new gas or propane boiler, we can price that for you.
In Reston, where boilers are rare, the venting decision is specific. A cast iron boiler vents up the chimney in metal pipe, sitting at the lower end of the $9,900 to $16,500 range. A condensing boiler vents out the side wall in white plastic pipe, which runs $12,782 to $16,500. Fairfax County requires a permit for any gas appliance swap, and a fuel-burning appliance replacement needs a chimney vent certification. You must check with Reston Association if the new vent changes your home’s exterior, as their guidelines cover chimney and flue alterations.
Reston Association has specific guidelines for chimneys and flues. A metal rooftop flue on the least visible roof plane may not need an application if it meets height and width limits and is painted black or the roof color. However, a side-wall vent pipe is not covered by the chimney guideline, so it may require approval under the general exterior alterations rules. If you are in a cluster or a condo, the building or cluster association may own the flue or the roof, so check your documents. For a straight swap that keeps the existing chimney, the work is between you, us, and Fairfax County.
Neighborhood by neighborhood
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 |
|---|---|---|---|---|
| Reston | 1981 | condo and apartment buildings, about 4 in 10 | gas, about 5 in 10 | 1980s and 90s houses, mostly forced air; boilers in the older ones. |
| Great Falls Crossing | 1993 | single-family houses, about 9 in 10 | gas, about 8 in 10 | 1980s and 90s houses, mostly forced air; boilers in the older ones. |
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 town where most neighbors use furnaces or heat pumps, a boiler can be a mystery. A rumble like a kettle, a dripping relief valve, or a radiator that is warm only at the bottom are signs to call. Do not wait for a cold snap. A $99 tune-up in the fall checks the pressure, the relief valve, and the pump, and gives you a clear picture of the system’s health.
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
Fairfax County requires a permit to replace any gas appliance, even like for like: a gas water heater, furnace or boiler. Replacing a fuel-burning appliance also needs a chimney vent certification. Source.
Fairfax County lists replacing a heating or cooling system as mechanical permit work. Source.
Fairfax County Fire and Rescue names a faulty gas furnace or water heater as a carbon monoxide source, says to have gas appliances inspected every fall, and to put a CO alarm on every floor. Source.
Fairfax County Fire and Rescue says to have the heating system cleaned and checked by a professional every year, and to keep anything that burns at least three feet from the furnace and the water heater. 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.
A leak in the heat exchanger or the cast iron sections usually means replacement, while a failing pump, valve, or expansion tank is a repair. The $99 diagnostic pinpoints the exact failure, and you get a written price before any work starts. We do not push a new boiler if fixing the current one makes sense for your Reston 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.
…excellent service when my boiler needed to be replaced during the polar vortex. Alex Hittle came quickly, … and replaced my boiler quickly. Alex even managed to change their schedule, with the kind permission of their other customer so that I could have heat again in the freezing weather.
Where we work
Next door to Reston: Herndon, Great Falls, Oakton, Vienna and Sterling.
Questions
It depends on the vent. If you keep the existing chimney, RA is not involved. If you switch to a condensing boiler that vents through a side wall, that is an exterior change. RA’s guidelines cover chimneys and flues, but side-wall vents may fall under general exterior alterations. Check with your cluster or RA before we start, so you know if an application is needed.
Yes, and it is a common question. A heat pump can provide both heating and cooling, and it does not need a chimney or a gas line. We can price a heat pump system for you, and we can also price a new gas or propane boiler if you prefer to stay with hot water heat. The choice depends on your home’s layout, your comfort preferences, and the cost of gas versus electricity in your area.
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 Reston 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.