Check the breaker, then the reset
If you have an electric tank and no hot water, look at the two-pole breaker in the panel and the red reset button behind the upper panel cover. Those two cause more no-hot-water calls than a bad tank does.
Chantilly, Virginia
Water heater repair in Chantilly.
For water heater repair in Chantilly, 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 Chantilly are rated 5.0 stars across 1,130 reviews and work under Virginia Class A contractor license 2705192276. Water heater repair in Chantilly, where gas and electric tanks are close to a coin flip, so the first question on every call is which one you have. 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 Chantilly.
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 Chantilly
Chantilly is split nearly down the middle between gas and electric tanks.
Fewer than six in ten Chantilly owners heat with gas, and about four in ten use electricity, which is a bigger electric share than most of the towns around it. In a lot of Chantilly houses you can’t guess the tank from the furnace. We ask, or we read the label, before anything gets opened.
Gas first. If the pilot won’t stay lit or the burner won’t catch, it’s usually the thermocouple, the igniter or the gas control, and a tank that’s otherwise sound is worth that repair. Electric second. A tank with no hot water at all often has a tripped reset or a failed upper thermostat, and one with lukewarm water has a dead element.
Six in ten Chantilly homes are detached, and most went up in the 1980s and 90s, so the tank is usually in a basement or garage with room around it. That’s good for repair. We can reach the burner, the elements and the drain without moving anything, and the visit stays short.
Where a repair stops making sense is when the leak is in the tank itself, not a fitting on top of it. A weep at the seam or a rusty puddle under the base means the steel is done. We’ll show you where the water is coming from before we say anything about parts, and the repair, if there is one, is priced in writing at the tank.
Neighborhood by neighborhood
What fails on water heaters across Chantilly.
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 |
|---|---|---|---|---|
| South Riding | 2006 | single-family houses, about 5 in 10 | gas, about 8 in 10 | The pilot, the igniter or the vent fan on a gas tank. |
| Chantilly | 1987 | single-family houses, about 6 in 10 | gas, about 5 in 10 | The pilot, the igniter or the vent fan on a gas tank. |
By the numbers
Chantilly houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
20151, the Fairfax County side
- Median home built1987 Census
- Built before 1980about 2 in 10 Census
- Built since 2000about 2 in 10 Census
- Most homes aresingle-family houses, about 6 in 10 Census
- Heated withgas, about 5 in 10 Census
- Rentedabout 2 in 10 Census
- Many houses here heat with electricity, and an electric water heater fails differently: an element, a thermostat or a tripped reset.
- Most homes here are detached houses with the tank in a basement or garage, where there’s room to work and a floor drain nearby.
20152, the South Riding side
- Median home built2006 Census
- Built before 1980hardly any Census
- Built since 2000about 8 in 10 Census
- Most homes aresingle-family houses, about 5 in 10 Census
- Heated withgas, about 8 in 10 Census
- Rentedabout 2 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 Chantilly 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 Chantilly?
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Choosing who does it
How to pick who repairs a water heater in Chantilly.
Questions to ask anybody who looks at your tank, us included.
Did they check both thermostats on an electric tank?
An electric tank has an upper and a lower thermostat. A tech who tests both and the elements is working through the actual list.
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.
Arrived within an hour on a Sunday morning and provided great service.
Called SwiftPro around 5 am and their electronic system scheduled an appointment for us same day.
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
- 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
Where we work
Water heater repair in every Northern Virginia town we serve
Next door to Chantilly: Centreville, Catharpin, Herndon, Aldie and Oakton.
Fairfax County
Arlington County
Loudoun County
Prince William County
Fauquier County
Stafford County
Every town on one page
Questions
Water heater repair questions from Chantilly.
How do I tell if my Chantilly water heater is gas or electric?
Look for a gas line and a flue pipe on top, or a thick cable going into a small box on the side. If neither is obvious, read the label.
Is a leak from the top of the tank a bad sign?
Often not. A dripping fitting, a pipe nipple or the relief valve is a repair. Water from the bottom or the side of the tank itself is the one to worry about.
How much is water heater repair in Chantilly?
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 Chantilly 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.