The outlet behind the tank tripped
A power-vent water heater plugs into a wall outlet. A tripped GFCI or a popped breaker leaves the fan dead and the burner off, and that’s worth checking yourself before anyone comes out.
Ashburn, Virginia
Water heater repair in Ashburn.
For water heater repair in Ashburn, the plumbing visit to find what’s wrong is $49, or $250 after hours. Call SwiftPro, rated 5.0 stars across 1,130 reviews, at (703) 997-9757, 24 hours a day, 7 days a week.
SwiftPro’s plumbers in Ashburn are rated 5.0 stars across 1,130 reviews and work under Virginia Class A contractor license 2705192276. Water heater repair in Ashburn, Brambleton and Broadlands: most tanks here are gas, many vent out the side wall with a fan, and we test both first. The repair, a thermocouple, a gas valve, an element or a thermostat, is priced in writing at the tank before we start.
- The failed part named before the price
- Our own licensed plumbers
- Fired up and tested before we leave
5.0 stars across 1,130 reviews
Two of our plumbers at a gas water heater in a Northern Virginia basement.
Get your price in writing
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Licensed and insuredVirginia Class A contractor #2705192276
24/7 emergency serviceWe answer day or night, and we will tell you honestly when we can get there.
Our own plumbers, our own trucksNobody here is a subcontractor with a magnet on the door
The price is settled before the workYou see the number in writing before anything is taken apart
What it costs
What water heater repair costs in Ashburn.
The visit fee is the same one on our plumbing price list. What usually fails, and when it’s the tank itself, is in our water heater repair guide.
Plumbing diagnosis visit
$49
Plumbing diagnosis visit, after hours
$250
Water heater repair (thermocouple, gas valve, element, thermostat, burner)
Priced in writing at the tank, before we start
Prices checked .
Where the repair lands depends on the part: a thermocouple or an element is a short job, a gas control valve takes longer and costs more, and either way you see the number before we start.
Water coming out of the tank body itself can’t be repaired. That’s a replacement, and the installed prices for one are on our water heaters page.
What’s different in Ashburn
In Ashburn, no hot water is often the vent fan, not the burner.
Better than eight in ten Ashburn owners heat with gas, and nearly all of those houses have a gas water heater beside the furnace. In the townhouses and the newer singles without a masonry chimney, that tank often vents out the side of the house through a plastic pipe, pushed by a small fan on top. When that fan or its pressure switch fails, the burner won’t light at all, and the house runs out of hot water even though the gas is fine.
Seven in ten owner homes here were built since 2000, so plenty of Ashburn tanks are on their second install. That matters for a repair. A thermocouple, an igniter or a vent fan on a tank with life left in it is worth fixing. A tank in a Broadlands basement that is weeping at the seam is not, and we’d show you the rust line before we talk about parts.
About four in ten homes in Ashburn are townhouses, and the tank often sits in a closet on a finished floor, sometimes over a kitchen or a family room. The pan underneath is supposed to catch a slow leak and carry it to a drain, but plenty of them just hold the water until it spills over. If you see water in that pan, call before you see it on the ceiling below. In a condo building, check with the association before anyone shuts off a shared valve.
The first thing we do on a no-hot-water call is find out what the tank is telling us. Most gas tanks made in recent years have a status light on the control that blinks a code, and the power-vent models have their own. Reading it, then testing the part it points to, is how the repair price you get in writing is for the right part.
Neighborhood by neighborhood
What fails on water heaters across Ashburn.
Census figures for the owner-occupied homes in each place, and what usually fails on the water heaters in houses like them.
| Place | Median home built | Most homes are | Heated with | What usually fails |
|---|---|---|---|---|
| Ashburn | 1998 | single-family houses, about 4 in 10 | gas, about 8 in 10 | The pilot, the igniter or the vent fan on a gas tank. |
| Brambleton | 2011 | townhouses, about 5 in 10 | gas, about 8 in 10 | The pilot, the igniter or the vent fan on a gas tank. |
| Broadlands | 2004 | single-family houses, about 6 in 10 | gas, about 9 in 10 | The pilot, the igniter or the vent fan on a gas tank. |
| Loudoun Valley Estates | 2013 | townhouses, about 6 in 10 | gas, about 8 in 10 | The pilot, the igniter or the vent fan on a gas tank. |
| Belmont | 2005 | single-family houses, about 6 in 10 | gas, about 9 in 10 | The pilot, the igniter or the vent fan on a gas tank. |
| Moorefield | 2015 | townhouses, about 6 in 10 | gas, about 7 in 10 | The pilot, the igniter or the vent fan on a gas tank. |
| One Loudoun | 2015 | townhouses, about 4 in 10 | gas, about 7 in 10 | The pilot, the igniter or the vent fan on a gas tank. |
| University Center | 1996 | condo and apartment buildings, about 4 in 10 | gas, about 8 in 10 | The pilot, the igniter or the vent fan on a gas tank. |
By the numbers
Ashburn houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
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
- Most houses here heat with gas, and most of those have a gas water heater too, where no hot water usually comes down to the pilot, the thermocouple or the gas valve.
- Newer houses often have a power-vent gas tank, with a fan and a pressure switch on top that can fail on their own.
The signs
When a Ashburn water heater needs a repair.
No hot water at all
On a gas tank that’s usually the pilot, the thermocouple that keeps it lit, or the gas valve. On an electric tank, it’s usually an element or the reset that tripped.
Hot water runs out fast
A shower that goes cold in five minutes often means a failed lower element on an electric tank, or a tank so full of sediment that it heats far less water.
Need water heater repair in Ashburn?
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Choosing who does it
How to pick who repairs a water heater in Ashburn.
Questions to ask anybody who looks at your tank, us included.
Did they read the code on the gas control?
A blinking light on the control is the tank’s own diagnosis. Whoever reads it and tests that part first is fixing what failed, not guessing.
Did they name the part before quoting a new tank?
A plumber who goes straight to replacement without testing the thermocouple, the valve or the elements may be selling you a tank you don’t need.
Did they check the relief valve and the venting?
A repair that leaves a stuck relief valve or a bad vent connection behind isn’t finished. Ask what else they looked at while the cover was off.
Two of our crew going over a work order before the day's calls.
From our Google reviews
What our customers say.
5.0 stars across 1,130 reviews. Read them on our reviews page.
Alex came out today to check out my water heater. He was on time and was super helpful in answering my questions. Would definitely have SwiftPro out again.
- 5.0stars across 1,130 reviewsHow we count them
- ABBB Accredited, A ratingCheck it on bbb.org
- 2026Voted a Nextdoor Neighborhood Faves winner two years running: 2026 in 30 Northern Virginia neighborhoods, 2025 in Emerald Chase (Herndon) and Hunters Run (Chantilly)See it on Nextdoor
- #1BusinessRate Best of 2026: the top-ranked heating contractor in Fairfax, VirginiaSee our BusinessRate score
- Class AVirginia contractor, license #2705192276Look it up with DPOR
Questions
Water heater repair questions from Ashburn.
Why does my Ashburn water heater have a fan on top?
With no chimney to use, the builder vented it through the wall, and the fan pushes the exhaust out. The fan motor, its pressure switch and the plastic vent line are all common repairs.
My water heater pan has water in it. Is that urgent?
Not yet, but it’s the time to call. Water in the pan can be a relief valve, a fitting or the tank itself, and in a townhouse closet it’s sitting over finished space.
How much is water heater repair in Ashburn?
The visit to find what’s wrong is $49, $250 after hours. The repair is priced in writing at the tank, before we start, because a thermocouple and a gas valve are very different jobs.
Should I repair my water heater or replace it?
Repair it when the tank is sound and a part failed. When the tank itself leaks, it’s a replacement, and we’ll show you where the water is coming from before you decide.
Ready when you are
Get the hot water back on.
Call, or send the form at the top. We find what failed, show you the part, and you get the repair price in writing before we touch it.
SwiftPro Heating, Cooling & Plumbing
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
SwiftPro Plumber & Water Heaters
4200 Lafayette Center Dr, Suite N, Chantilly, VA 20151
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 Ashburn and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 1,130 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.