Check the propane gauge
If you heat water with propane and the tank has gone cold, look at the gauge on the propane tank outside before you touch the heater. Empty is the cheapest answer there is.
Clifton, Virginia
Water heater repair in Clifton.
For water heater repair in Clifton, 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 Clifton are rated 5.0 stars across 1,130 reviews and work under Virginia Class A contractor license 2705192276. We cover water heater repair in Clifton and the 20124 hills around it, from old Main Street houses to newer Union Mill cul-de-sacs, gas, propane or electric. 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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Rather talk now? (703) 997-9757
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 Clifton.
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 Clifton
Clifton’s tanks run from a village cellar to a Union Mill garage.
Clifton is two places in one. The village around the old railroad is full of houses that are a lot older than the rest of Fairfax County, and the water heater in them sometimes sits where a later owner found room: a cellar corner, a back hall, a closet that used to be something else. Around it, 20124 is mostly newer detached houses, and across the ZIP about six in ten owners heat with gas.
Not everyone out here has a gas line at the street. A small but real share of 20124 homes heat with propane, and a propane water heater behaves just like a natural gas one: a pilot, a thermocouple, a gas control, an igniter. If your propane tank is empty, that’s the first thing to check before anyone is called, because an empty tank looks exactly like a dead water heater.
In the older village houses we expect to find old plumbing around the tank: gate valves that won’t close, galvanized stubs, a vent pipe that no longer matches the tank. That affects the repair. A part swap on a sound tank is fine, but a stuck shutoff can turn a ten-minute fix into a longer job, and we’d rather tell you that when we arrive than after we’ve started.
A lot of Clifton properties are large and the house is a long way from the road. If the water heater leaks, shut off the cold supply and the power or gas to the tank, and call. Repairs are priced in writing at the tank. If the tank itself is the problem, the replacement page has what we do next.
By the numbers
Clifton houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
The Fairfax County side of 20124
Clifton mail outside the town: five- to ten-acre lots in the Occoquan watershed on Clifton, Compton and Yates Ford Roads, mostly on septic, and the 1980s subdivisions off Springstone Drive and Union Mill Road on county sewer.
ZIP 20124 as a whole, the Town included: its own homes are too few for steady Census figures.
- Median home built1988 Census
- Built before 1980about 1 in 10 Census
- Built since 2000about 1 in 10 Census
- Most homes aresingle-family houses, about 8 in 10 Census
- Heated withgas, about 6 in 10 Census
- Rentedabout 1 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.
- 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.
The signs
When a Clifton 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 Clifton?
A person answers day and night. See this month’s deals before you call.
Choosing who does it
How to pick who repairs a water heater in Clifton.
Questions to ask anybody who looks at your tank, us included.
Did they check the shutoff valve before they started?
In an older house the valve above the tank may not close. A tech who tests it first knows what the job really is.
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.
Jim was very professional, knowledgeable and polite plumber. He installed a water heater for us. After the installation he educated us on the maintenance and the new set up. I strongly recommend Jim/SwiftPro. Plus SwiftPro price was very reasonable/20% below other estimates.
- 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 Clifton: Fairfax Station, Burke, Manassas, Centreville 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 Clifton.
Does a propane water heater need different repairs than natural gas?
The same parts fail. The gas control and burner orifice are made for propane, so the part has to match the fuel.
What if my Clifton water heater sits in a cellar corner?
We can usually work there. Tell us about steps, low pipes or a tight turn when you book, so we bring the right gear.
How much is water heater repair in Clifton?
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 Clifton 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.