Open 24/7 for emergencies
A new water heater installed with the permit runs $2,757 to $5,493 for an electric tank, $3,379 to $5,485 for gas or propane and $8,886 to $10,486 for tankless.
Price range
$2,757-$5,493
8yrs @ 7.99%
$39/mo
15yrs @ 9.99%
$30/mo
Monthly figures on the starting price, the whole price financed, on approved credit. The lender sets the final terms. How financing works
Get your price in writing
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Marshall water heaters repaired or replaced, electric, propane or tankless, with any permit Fauquier County requires counted in the price. The water heater estimator gives your exact number.
5.0 stars across 1,132 reviews
Two of our plumbers wheeling a new water heater up a Northern Virginia walkway, the van at the curb.
Licensed and insuredVirginia Class A contractor #2705192276
24/7 emergency serviceOften same-day, 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
Installed, from our water heater estimator, which is the price book. Everything is in the number: the permit and the inspection, the expansion tank, the drain pan, hauling the old one away, and the labor.
Electric tank, installed
$2,757 to $5,493
or $46/mo at 0% APR for 60 months
Gas or propane tank, installed
$3,379 to $5,485
or $56/mo at 0% APR for 60 months
Power vent tank, installed
$5,957 to $7,494
or $99/mo at 0% APR for 60 months
Tankless, installed
$8,886 to $10,486
or $148/mo at 0% APR for 60 months
Monthly figures: 60mo @ 0% APR on each starting price, the whole price financed, on approved credit. Longer plans lower the payment and cost more in total. The lender sets the final terms. How financing works
How the house vents picks the row; where you land inside it is the tank size and the warranty. A hybrid heat pump water heater is quoted at the visit, never from a page.
Keeping the one you have? A yearly water heater flush slows the sediment down: $99 right now, normally $199. A tankless descale is $300, regularly $350. Or get the flush every year with Comfort+ membership, $199 a year, along with a dryer vent cleaning, a sewer camera inspection and heating and cooling maintenance visits.
What’s different in Marshall
Fewer than one owner home in a hundred in 20115 heats with natural gas. About six in ten use electricity and one in five propane from a tank in the yard, so the heater is usually one of those. A propane tank heater adds the gas connection and the flue or power venter, and prices on the gas or propane row.
Marshall has no town government, so permits come from Fauquier County’s Department of Community Development on Courthouse Square in Warrenton, and the rule turns on fuel. Anything fuel-fired takes a permit, so a propane heater does even as a straight swap. An electric heater replaced with a similar model in the old one’s spot needs none; relocating either kind does. The County hands out trade permits the same day you walk in.
Some of FCWSA’s Marshall wells carry iron and manganese, which settle in a tank with other sediment and, on an electric heater, bury the lower element first. FCWSA owns the line through the meter box; past it, the pipe and the heater are yours. Above 80 psi, FCWSA tells customers to fit a regulating valve at their own expense, and with one in, the water a heater warms can’t push back toward the main. So an expansion tank comes with every heater we install.
Outside the service district the house runs on a private well, permitted by the Fauquier County Health Department. Virginia Cooperative Extension’s clinics found acidic water, below pH 6.5, in close to half the Fauquier well samples, and it eats at a tank’s anode rod and at copper fittings. The pressure tank and pressure switch belong to the well contractor; the heater and everything after it are ours.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
ZIP 20115 as a whole: every Marshall address, the village included. The Census place for the village alone has too few homes for steady figures.
What you’d notice
On an electric tank, a power blip can sometimes trip the high-limit switch, and the water goes cold with the breaker still on. Around Marshall those blips tend to ride in on storms: NOAA’s Storm Events Database has Hurricane Sandy, in October 2012, leaving forty roads in northern Fauquier blocked by fallen trees or power lines. We reset it and find out why; if it trips again, a thermostat or an element is failing, both repairs, not a new heater.
An electric tank has two elements. When one fails the water still warms, just never all the way; it’s a common, fixable part.
A drip from a valve can be fixed. Water from the tank itself can’t; once the lining goes, the only fix is a new heater, and sooner beats later.
If the basement took water
A water heater usually sits on the lowest floor of the house, so it’s one of the first things standing water reaches. Three checks, then call us.
Leave it off and don’t relight it. The warning label on a gas water heater says not to use it if any part has been under water, and to have a service technician replace the gas control.
Shut its breaker off at the panel, but only from somewhere dry. The elements and the thermostats get checked before it heats again.
Mop it up and look again in an hour. Water that comes back with no rain is the tank or a valve, not the storm.
Call us after a storm and we’ll check it: the gas control or the elements, the burner, the venting and the drain pan. If it has to be replaced, you get the price in writing before anything comes out.
Permits and pressure
A burst tank doesn’t wait on paperwork: under Virginia’s building code the replacement can start first, as long as the permit application reaches Fauquier County’s Building office by the end of the next working day. Source.
On FCWSA water (Bealeton, Catlett, Marshall, New Baltimore, Vint Hill and its other systems), FCWSA says it can’t guarantee uniform pressure, and that over 80 psi the customer should install a pressure regulating valve at their own expense. Homes on private wells aren’t covered by this. Source.
Our Virginia Class A contractor license, 2705192276, is on the side of the van.
Choosing who installs it
Questions worth asking anybody who quotes you, us included.
It changes the parts around the heater: on FCWSA water, possibly a pressure regulating valve and an expansion tank; on a well, the pressure tank and its pressure switch. Both belong in the quote.
A gas water heater always needs a permit, an electric one often does, and skipping it tends to surface when the house sells. Ask whether the quote includes it and the inspection.
Most houses here have a check valve or a pressure reducer on the incoming line, so the heated water has nowhere to go. An expansion tank gives it somewhere, and leaving it out is how quotes come in low.
A thermocouple, an element or a valve is a repair, not a new heater. A good plumber says so, and saves the replacement talk for a leaking tank.
Two of our crew going over a work order before the day's calls.
From our Google reviews
5.0 stars across 1,132 reviews. Read them on our reviews page.
This Company installed a tankless water system!!! They were great!!! Very Professional & Efficient & they Cleaned up & took out the old water tank! I would highly recommend them!!
Where we work
Next door to Marshall: Rectortown, Delaplane, The Plains, Orlean and Broad Run.
Questions
Usually not. After a run-out the supplier refills the tank and checks the lines for leaks before anything is relit. If the heater still won’t light once that’s done, it’s a repair call for us. A propane heater here often shares the yard tank with the furnace, so when both go out on the same morning, read the tank gauge first.
Yes, with upkeep. Iron, manganese and any hardness build up inside its heat exchanger, on FCWSA water or a well, so it needs descaling on the maker’s schedule: $300 at the moment, regularly $350. On a well, a sediment filter ahead of it helps.
Installed, with the permit, the expansion tank, the pan and the haul-away: an electric tank $2,757 to $5,493, a gas or propane tank on the flue you have $3,379 to $5,485, a power vent tank $5,957 to $7,494, and a tankless unit $8,886 to $10,486. The estimator gives your exact number in about a minute.
Ready when you are
Call, or send the form at the top. The age on the label and what it’s doing tell us most of what we need, and you get the price before anything comes out.
SwiftPro Heating, Cooling & Plumbing
4230 Lafayette Center Dr N, Chantilly, VA 20151
44679 Endicott Dr, Suite 211, Ashburn, VA 20147
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 Marshall and the rest of Northern Virginia. Virginia contractor license #2705192276. 5.0 stars across 1,132 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.