Open 24/7 for emergencies
For water heater repair in Alexandria, 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 Alexandria are rated 5.0 stars across 1,130 reviews and work under Virginia Class A contractor license 2705192276. Water heater repair in Alexandria: with four in ten owners on electric, lukewarm showers and dead taps in condo closets are often an element or a thermostat. 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 Alexandria
About four in ten Alexandria owners heat with electricity, and half of the city’s homes are in apartment or condo buildings, so a great many tanks here are electric, standing in a closet off a hallway. An electric tank has two heating elements and a thermostat for each, one up high and one down low. Which one died tells us a lot before we open a toolbox. Hot water that runs out in minutes points to the lower element. Water that is cold from the first second points to the upper one, or to a tripped safety reset behind the access panel.
Six in ten Alexandria homes were built before 1980, and the older houses around Old Town and Del Ray often keep a gas tank in the basement or a cellar utility room. Those fail the way any gas tank does: a pilot that won’t stay lit, a thermocouple that has gone weak, a control that stopped answering. If the burner never lights, the repair usually starts at the thermocouple, which is a short job on a tank with years left.
Condos are their own puzzle. In a building, the tank’s shutoff may be a valve you can reach in your closet, or it may be a riser valve that serves the whole stack and belongs to the association. Before anyone drains a tank in a unit, find out which one you have. More than half of the occupied homes in the city are rented, so it also helps to know who approves the repair. We write the price down at the tank so a landlord can say yes from a phone.
If you rent, tell your landlord before you call anyone, and ask for the repair to go through the building’s own plumber only if the lease says so. If you own, call us directly and we’ll walk through what the tank is doing.
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 |
|---|---|---|---|---|
| City of Alexandria | 1970 | condo and apartment buildings, about 5 in 10 | gas, about 6 in 10 | A thermocouple or a gas valve on an older gas tank. |
| Rose Hill | 1969 | single-family houses, about 7 in 10 | gas, about 7 in 10 | A thermocouple or a gas valve on an older gas tank. |
| Franconia | 1986 | townhouses, about 5 in 10 | electricity, about 6 in 10 | An element or a thermostat on an electric tank. |
| Fort Hunt | 1963 | single-family houses, nearly all | gas, about 8 in 10 | A thermocouple or a gas valve on an older gas tank. |
| Kingstowne | 1994 | townhouses, about 5 in 10 | gas, about 7 in 10 | The pilot, the igniter or the vent fan on a gas tank. |
| Woodlawn | 1976 | townhouses, about 4 in 10 | electricity, about 6 in 10 | An element or a thermostat on an electric tank. |
| Lincolnia | 1982 | single-family houses, about 4 in 10 | gas, about 7 in 10 | The pilot, the igniter or the vent fan on a gas tank. |
| Mount Vernon | 1967 | single-family houses, about 7 in 10 | gas, about 7 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.
The signs
On an electric tank, a red reset button behind the upper panel pops when the water overheats. Pressing it once is fine, with the breaker off. If it pops again, a thermostat or an element has failed, and pressing it more only hides that.
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.
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Choosing who does it
Questions to ask anybody who looks at your tank, us included.
A meter on each element takes a few minutes and settles it. A plumber who skips that step on an electric tank is guessing, and a good element is not worth replacing.
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.
Hard to find service like this in Alexandria.
…we had swift and professional responses for multiple plumbing and HVAC needs in our Rosemont Alexandria condo
James is a wealth of knowledge who provided a competitive estimate to replace our hot water heater. He is professional and courteous. Thank you for a great first call.
Where we work
Next door to Alexandria: Arlington, Springfield, Falls Church, Annandale and Fort Belvoir.
Questions
Usually the unit owner, since the tank serves one unit. The shared pipes and risers belong to the association. Check your documents, and we’ll tell you which side the failed part is on.
On an electric tank that is most often the lower element. On a gas tank it can be a gas control running low or a dip tube that mixes cold water into the top.
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 Alexandria 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.