Open 24/7 for emergencies
A plumber off post at Fort Belvoir clears one drain for $200 to $800, priced in writing before work, in Cook Inlet basements and on Backlick Road.
Get your price in writing
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Rather talk now? (703) 997-9757
5.0 stars across 1,132 reviews
Part of our plumbing team, with the drain machine, the sewer camera and the jetter they bring to the house.
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
The same list as our plumbing page, every line a range because the house decides where it lands. You get the number before the work starts.
Drain cleaning, one fixture
$200 to $800
Main sewer line cleaning
$550 to $1,650
Sewer camera inspection, added to a visit
$89
Leak detection
$200 to $500
Toilet repair
$250 to $900
Pressure reducing valve replacement
$500 to $1,000
Water heater replacement
$2,757 to $10,486
or $46/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
A sewer camera inspection is $89 added to a visit we’re already making. It’s the cheapest way to know what a drain is doing before anybody talks about digging.
With Comfort+ membership, any service is 15% off, and a water heater flush with a sewer camera inspection and a plumbing safety inspection comes every year.
What’s different in Fort Belvoir
Inside the fence, The Villages at Belvoir maintains the plumbing in family housing, so a leak in a post home goes to them as a service request. Off post, 22060 is Fairfax County’s: Cook Inlet’s 256 houses and townhouses, and a short row of older houses on Backlick Road. Fairfax Water supplies both, here mostly from its Griffith plant on the Occoquan, about 3 to 8 grains of hardness per gallon in 2025.
The ground is the story in Cook Inlet. Fairfax County’s soil map puts it on Coastal Plain clay in hydrologic group D, the slowest-draining class, with the water table as little as two feet down, under houses built with full basements. On June 28, 2016, the National Weather Service logged Route 1 flooded and closed at Belvoir Court. After a storm like that, have us go over the sump pump, the floor drains and the main line; a pump that can’t keep the pit down gets replaced at the one price on our sump pump replacement page.
Cook Inlet’s 2002 to 2004 houses have copper or PEX supply and PVC drains. What comes due at twenty years is the equipment: the gas water heater beside the furnace, likely on its second tank or ready for one, and any builder’s pressure reducing valve by the main. A tank water heater replacement runs $2,757 to $7,494; a pressure reducing valve, $500 to $1,000. The sewer line to the main is the owner’s in Fairfax County, under the street too, so a sewer camera inspection, $89 added to a visit, comes before any talk of digging.
Accotink is a different century. Fairfax County dates one Backlick Road house to 1900, six to 1925 and six to 1978, and eight of its fifteen dwellings on record have no basement, so their pipes run where cold air reaches. Reagan National, 13 miles up the river, averages about 60 freezing nights a year, and Arctic air like December 2022’s splits a crawlspace pipe. Fairfax County Fire and Rescue says to shut the valve to a frozen pipe first and thaw it slowly, never with a torch.
What you’d notice
Over a crawlspace, that’s usually a frozen supply line, and the trouble starts when it thaws. Shut the main valve, open the faucet, and warm the space gently. If it split, leak detection, $200 to $500, finds where.
A damp patch on a ceiling, a warm spot on the floor, a meter that keeps ticking with every tap off. A slow leak inside a wall does most of its damage before it ever shows itself.
One slow sink is a sink. Two slow drains on different floors are sharing the pipe out to the street, and a basement drain that gurgles while you run water upstairs is the main line talking.
Lukewarm showers, hot water that runs out halfway, banging or rumbling from the tank. Rumbling is sediment, and it’s the noise a water heater makes in its last couple of years.
After a heavy rain
Heavy rain finds the weak spots in a house’s plumbing. Four checks you can make yourself, then call us and we’ll look at the rest.
Clear water with no smell is usually groundwater. Gray water, or a sewer smell, means the main line is backing up: stop running water in the house and call us.
A main line with a cracked joint or roots in it can take in groundwater during a storm and slow down. A sewer camera inspection, $89 added to a visit, shows where.
If the house has one, watch it once: it should start as the pit fills, empty it and shut off. Our sump pump replacement page has the rest of the checks.
If floodwater got to a gas water heater’s burner or controls, leave it off. Don’t relight it until a plumber has checked it.
Call us after a storm and we’ll check it all: the floor drains, the main line, the sump pump and the water heater. Any repair gets its price in writing before the work starts.
Your pipes, your paperwork
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 a plumber
Questions worth asking anybody who comes out, us included.
Anyone can check on the state’s license lookup in about a minute. It’s the one question that takes the guesswork out of the rest.
A sewer camera inspection is cheap next to any dig, and it shows whether the problem is a root, a sag or a break. A quote to dig without one is a guess.
Every plumbing job on our list has a range. A plumber who won’t say where yours lands until the wall’s open is asking for a blank check.
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.
Needed 2 faucets installed and both gentlemen did a nice job. Checked everything out prior to removing old faucets and QC’d everything upon completion of the job. Cleaned up and on their way. Thanks!
Where we work
Next door to Fort Belvoir: Lorton, Springfield, Alexandria, Woodbridge and Fairfax Station.
Questions
The Villages at Belvoir, which owns and maintains family housing on post: file a service request through its resident portal or welcome center. We plumb the off-post houses.
Because the water under it sits high: the county’s soil survey puts groundwater about two to more than six feet down, in slow-draining clay, so the pit fills from below after a soaking rain. Running often is its job. Running nonstop, cycling every few seconds or losing ground to the pit means it’s time to replace it.
It depends on the job, and every one has a published range: drain cleaning for one fixture $200 to $800, main sewer line cleaning $550 to $1,650, leak detection $200 to $500, a pressure reducing valve replacement $500 to $1,000, toilet repair $250 to $900. A sewer camera inspection added to a visit is $89.
Ready when you are
Call, or send the form at the top. You get the price before the work, and if it can wait, we’ll tell you that too.
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 Fort Belvoir 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.