Is the furnace running?
Both appliances share one propane supply. If the furnace is heating the house, gas is arriving, and the water heater’s own control or pilot is the problem.
Delaplane, Virginia
Water heater repair in Delaplane.
For water heater repair in Delaplane, 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 Delaplane are rated 5.0 stars across 1,130 reviews and work under Virginia Class A contractor license 2705192276. Water heater repair in Delaplane: more than half the homes run on propane, so the fix starts at the yard tank and the pilot. 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 Delaplane.
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 Delaplane
In Delaplane, a propane water heater that quit may just be hungry.
Propane heats a bit more than half the owner homes in ZIP 20144 and electricity about three in ten, with no utility gas at all. A propane heater lives on three things: fuel from the yard tank, a pilot that stays lit, and a gas control that opens on call for heat. When any one stops, the burner goes dark and the house goes cold in the shower.
After a cold snap, look at the yard tank before the heater. A tank nearly empty, or a regulator iced over, starves everything on the line. Trouble with the furnace and the water heater together means the supply. Trouble with only the heater means the heater’s own parts, and that’s where we go.
More than half the homes here went up between 1980 and 1999. A tank from that stretch that’s still going has probably outlived a part or two, and a new thermocouple or gas control makes sense when the inside of the tank is clean. We check that first by looking at what comes off the drain valve.
Delaplane has no public water, and FCWSA’s drought page says a well running hard in summer may give harder, more discolored water until recharge starts around October 1. So fall is when sediment from a tired well turns up in the tank. A lazy burner in October may be the water’s doing and not the heater’s.
By the numbers
Delaplane houses, by the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
Delaplane
ZIP 20144 as a whole: every Delaplane address.
- Median home built1986 Census
- Built before 1980about 2 in 10 Census
- Built since 2000about 3 in 10 Census
- Most homes aresingle-family houses, nearly all Census
- Heated withelectricity, about 3 in 10 Census
- Rentedabout 2 in 10 Census
- 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 Delaplane 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 Delaplane?
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 Delaplane.
Questions to ask anybody who looks at your tank, us included.
Did they check the regulator and the supply before the burner?
A heater can’t light on a starved line. Ruling out the tank and the regulator first keeps you from paying for a part that was never broken.
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.
SwiftPro delivered and installed a 75 gallon AO Smith water heater. Zabi was very professional in his communication, plumbing, testing, and cleanup. Good crew to move new heater to basement utility room and take out the old heater.
- 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 Delaplane: Rectortown, Upperville, Marshall, The Plains and Orlean.
Fairfax County
Arlington County
Loudoun County
Prince William County
Fauquier County
Stafford County
Every town on one page
Questions
Water heater repair questions from Delaplane.
How do I know my yard tank is running low?
Most have a dial on top. Many suppliers want a call before it falls under about a fifth. If it reads fine and the pilot is out, the problem is the heater.
Why does my water heater act up every fall?
On a well, the water table is lowest then, and stirred-up sediment can foul the burner chamber or smother a lower element. A repair and a flush usually settle it.
How much is water heater repair in Delaplane?
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 Delaplane 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.