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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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Water heaters in Warrenton, in town and out in New Baltimore and Vint Hill, repaired or replaced with the Town or County permit already 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 Warrenton
Warrenton has two building offices, both downtown. Inside the town limits the Town of Warrenton runs its own, in its Department of Community Development, and a water heater permit there comes from the Town, not the County. Outside the limits, Fauquier County’s building office on Courthouse Square takes over. The envelope says Warrenton either way, so the first thing to settle on a replacement is which side of the line the house is on; each office’s rule is further down this page.
Inside the town about six in ten owner homes heat with gas, so the tank is usually gas too, and the swap is permitted work. The median owner home went up in 1993, but nearly three in ten of the town’s homes predate 1960, and in those the water heater often shares a masonry flue with the furnace. If that furnace has been swapped for a high-efficiency model that vents out the side wall, the tank is left alone on a flue sized for two, and that gets checked before a new tank goes on it.
Out in the county the water feeding the heater changes. New Baltimore and Vint Hill are on Fauquier County Water and Sanitation Authority systems that draw from drilled wells, and the Authority’s 2025 report says iron and manganese in the New Baltimore wells can tint the water brown. Beyond the service districts, homes run on their own wells, and Virginia Cooperative Extension’s Fauquier well clinics, 2012 to 2017, found water under pH 6.5 in 46 percent of samples. Water that slightly acidic is harder on a tank’s anode rod, the part that corrodes so the steel doesn’t.
Pressure is the other county wrinkle. FCWSA’s rules leave everything past the meter box to the homeowner, and say a house above 80 psi should have its own pressure regulating valve. Once that valve is in, heated water has no way back to the main, and the expansion tank already in every price we give is where it goes. On a well, the pressure tank and its switch set the house pressure.
Neighborhood by neighborhood
Census figures for each place, and the water heater that usually goes with its houses. Median year built and heat count owner-occupied homes only.
| Place | Median home built | Most homes are | Heated with | The water heater you usually find |
|---|---|---|---|---|
| New Baltimore | 1999 | single-family houses, nearly all | gas, about 5 in 10 | Gas tanks on their second or third replacement. |
| Warrenton | 1993 | single-family houses, about 5 in 10 | gas, about 6 in 10 | Gas tanks on their second or third replacement. |
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
Inside the town limits, a little over 4 of the roughly 110 square miles the two Warrenton ZIP codes cover: the Historic District around Main Street, Leeds Square, and the streets off Broadview Avenue and Alwington Boulevard.
New Baltimore only. It’s the one Census place on the county side with mostly Warrenton mail, so the farms and lots beyond it aren’t in these figures.
What you’d notice
Iron and manganese settle in the bottom of a tank along with the rest of the sediment. If only the hot side comes out tinted, the water heater is holding it. If both taps do, it’s the supply, and the call goes to whoever sends your water bill before it comes to us.
On a gas tank that’s usually the thermocouple or the gas valve, both repairs. A burner that lights but smells of exhaust is different: shut it off and call.
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
The Town lists replacing a gas appliance, a water heater included, among the jobs that always need a permit. Swapping an electric water heater for one the same size in the same spot doesn’t. Source.
Virginia’s building code lets an emergency equipment replacement start before the permit is issued, provided the application reaches the Town’s Building office by the end of the first working day after the work begins. Source.
On Town water, the Town sends questions about water pressure to its Water Treatment Plant. Source.
Outside the town limits, Fauquier County issues the permit. It wants one for any fuel-fired water heater, propane included, and for any heater being moved; an electric one swapped for a similar unit in the same spot counts as an ordinary repair. Trade permits go out over the counter the day the application comes in. 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.
A Warrenton address can sit inside the town limits or out in Fauquier County, and the two building offices have different rules for the same swap. A plumber who works here should check which side you’re on before quoting, so the permit in the price is the right one.
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.
Alex came out today to check out my water heater. He was on time and was super helpful in answering my questions. Would definitely have SwiftPro out again.
Questions
For gas or propane, yes, on either side of the town line. Inside the town the Town’s Building office issues it; outside, Fauquier County does, over the counter the day it’s applied for. An electric tank swapped for a similar one in the same spot is the exception in both places. Whichever permit your house needs, it and its inspection are already in our number.
Run the cold tap first. If the cold water smells fine and only the hot does, the water heater is the likely source, and the usual fix is a different anode rod rather than a new tank. An article FCWSA posts on its tips page for customers says the same.
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 Warrenton 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.