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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Fairfax Station water heaters in natural gas, propane or electric, tank or tankless, on well water or Fairfax Water, replaced with the county permit priced in. 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 Fairfax Station
A Fairfax Station house is usually a big one. About 9 in 10 homes in the 22039 ZIP have four bedrooms or more, against about 4 in 10 across Fairfax County, and a 40 gallon tank that suits a townhouse can run short here. A house that size usually wants 50 gallons or more, two tanks side by side, or a tankless unit sized for two showers at once.
The fuel varies, too. About 6 in 10 owner homes in 22039 heat with natural gas, about 3 in 10 with electricity, and about 1 in 12 with oil or propane. Propane-fired tanks are priced with gas, $3,379 to $5,485 installed, and Fairfax County wants the same permit for one, even like for like. An all-electric house usually keeps an electric tank, $2,757 to $5,493.
On a well, the water reaching the tank has never been through a treatment plant. Whatever grit the pump brings up settles at the bottom, and the hardness is whatever your own well test says, not a utility’s average. If the water runs through a softener, the anode rod in the new tank gets used up faster, so it’s worth a look every couple of years.
Power matters more out here too. A tankless unit or a power vent tank needs electricity to fire, and on a well so does the pump that feeds it. When the lights go out, a well house is down to whatever the pressure tank holds, whichever water heater it has, so a tankless unit’s need for power costs a well house nothing it wasn’t already losing.
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 |
|---|---|---|---|---|
| Fairfax Station | 1982 | single-family houses, about 9 in 10 | gas, about 5 in 10 | Gas tanks on their second or third replacement. |
| South Run | 1988 | single-family houses, nearly all | gas, about 9 in 10 | Gas tanks on their second or third replacement. |
| Crosspointe | 1993 | single-family houses, nearly all | gas, about 8 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.
ZIP 22039 as a whole: every Fairfax Station address. The Fairfax Station Census place in the table also takes in streets with Fairfax mail.
What you’d notice
On a well, sand that collects in the aerators and showerheads is also settling in the water heater. A tank that pops and rumbles after only a few years on well water is carrying a lot of it, and a flush costs far less than a new heater.
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.
That’s sediment on the bottom of the tank boiling as the burner or element heats under it. It’s the sound of a tank working harder every year.
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
Fairfax County requires a permit to replace any gas appliance, even like for like: a gas water heater, furnace or boiler. Replacing a fuel-burning appliance also needs a chimney vent certification. Source.
Virginia lets emergency replacement work start first, with the permit application in by the end of the next working day. Source.
Fairfax Water promises 20 psi at the main and no uniform pressure, and the pressure reducing valve on your side of the meter is yours to buy and keep up. Over 80 psi, the Virginia Residential Code calls for one, and an expansion tank with it. 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.
The tank in a 1980s Fairfax Station house may be its third, and nobody re-sized it when the basement was finished or the family grew. Ask whoever prices the replacement how they got to the gallons, and whether a second tank or a tankless unit fits the house better.
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.
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.
Where we work
Next door to Fairfax Station: Burke, Clifton, Springfield, Fairfax and Annandale.
Questions
Mostly not. It’s a tank built for propane on the same kind of flue, and Fairfax County treats it as a gas appliance: a permit and a chimney vent certification, like for like included. The tank in the yard and the line to the house are usually your propane supplier’s to set up, so a bigger appliance on that line means a call to them as well.
It can, with two conditions. Hard or gritty well water needs a filter ahead of the unit and a descale every year, $300 right now (regularly $350). And a house with four or five bedrooms needs a unit big enough for two showers at once, which usually means a large gas or propane model venting through a wall. Tankless runs $8,886 to $10,486 installed.
Gallons are only half the answer. The yellow label lists a first-hour rating, the hot water a tank can deliver in one busy hour, and that’s the figure to match to your mornings: count the showers that run back to back, add the dishwasher if it goes then too, and size to that. Whoever prices the replacement should show you that arithmetic.
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 Fairfax Station 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.