Try the valve on a dry day
Turn the cold shutoff above your tank a quarter turn and back, once a year. A valve that has been left alone for decades is the one that breaks off in your hand during a leak.
For water heater repair in Falls Church, 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 Falls Church are rated 5.0 stars across 1,130 reviews and work under Virginia Class A contractor license 2705192276. Water heater repair in Falls Church, where one home in three is older than 1960: the leak is often a connector at the top of the tank, not the tank itself. The repair, a thermocouple, a gas valve, an element or a thermostat, is priced in writing at the tank before we start.
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
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 Falls Church
A third of Falls Church homes were built before 1960, and the median owner home dates to 1964. That’s old pipe. Plenty of tanks in the City and in Idylwood, Lake Barcroft and Seven Corners still hang from a mix of copper, galvanized steel and brass that has been repaired a few times. Where the cold line goes into the tank and the hot line comes out, the connections can corrode long before the tank does.
That’s good news when it happens. Water running down the outside of the tank starts out looking like a dead heater. If it starts at the top, with a crusty fitting or a nipple that has gone green or orange, the tank can stay and the connection gets replaced. If the moisture comes from the bottom, from the seam, or from the drain valve that’s never been touched, that’s a different answer. We trace the water to its source with a dry paper towel before we say a word about replacement.
Nearly seven in ten Falls Church owners heat with gas. In an older house that tank often sits in a finished or half-finished basement, boxed in by shelving and storage, with an old gate valve on the cold line above it. Those gate valves seize. If yours won’t close, the repair begins at the main shutoff, which is worth knowing before the day you need it.
More than four in ten homes here are in apartment or condo buildings, mostly newer than the houses, with an electric tank in a closet. Those fail at an element or a thermostat, so the repair is quick once the part is named.
Neighborhood by neighborhood
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 |
|---|---|---|---|---|
| West Falls Church | 1957 | single-family houses, about 6 in 10 | gas, about 7 in 10 | A thermocouple or a gas valve on an older gas tank. |
| Bailey’s Crossroads | 1980 | condo and apartment buildings, about 6 in 10 | electricity, about 5 in 10 | An element or a thermostat on an electric tank. |
| Idylwood | 1975 | condo and apartment buildings, about 4 in 10 | gas, about 5 in 10 | A thermocouple or a gas valve on an older gas tank. |
| City of Falls Church | 1964 | condo and apartment buildings, about 5 in 10 | gas, about 7 in 10 | A thermocouple or a gas valve on an older gas tank. |
| Lake Barcroft | 1958 | single-family houses, about 6 in 10 | gas, about 8 in 10 | A thermocouple or a gas valve on an older gas tank. |
| Seven Corners | 1972 | condo and apartment buildings, about 5 in 10 | gas, about 6 in 10 | A thermocouple or a gas valve on an older gas tank. |
| Pimmit Hills | 1961 | single-family houses, about 7 in 10 | gas, about 9 in 10 | A thermocouple or a gas valve on an older gas tank. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
ZIP 22046, plus a few City addresses in 22042 and 22044.
22041 to 22044: West Falls Church, Idylwood, Lake Barcroft, Seven Corners and Bailey’s Crossroads.
The signs
Turn the cold shutoff above your tank a quarter turn and back, once a year. A valve that has been left alone for decades is the one that breaks off in your hand during a leak.
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.
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 Falls Church?
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Choosing who does it
Questions to ask anybody who looks at your tank, us included.
Water at the top of the tank can be a fitting. Water from the bottom is the tank. Ask them to show you which.
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.
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
5.0 stars across 1,130 reviews. Read them on our reviews page.
I had a really pleasant personal experience with Swiftpro when my water heater went out. The pricing was very reasonable compared to the many other HVAC companies I sought quotes from. I highly recommend them
Where we work
Next door to Falls Church: Dunn Loring, Arlington, Annandale, McLean and Vienna.
Questions
Not always. A drip at a top connection, the relief valve or the drain valve is a repair. A drip from the tank body is not. We find the source first.
Close the main instead, and call us. Replacing an old gate valve with a ball valve is part of the repair, so the next one closes the first time.
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.
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
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 Falls Church 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.