Open 24/7 for emergencies
For pipe repair, a plumbing diagnosis visit in Dunn Loring is $49, or $250 after hours, and a person answers (703) 997-9757 day or night.
SwiftPro’s plumbers in Dunn Loring are rated 5.0 stars across 1,130 reviews and work under Virginia Class A contractor license 2705192276. Leak or burst pipe repair in Dunn Loring, where a street’s build year tells you its pipe: 1970s copper, 1990s plastic, 2000s newer. We find the leak and fix it. Finding a hidden leak is $200 to $500, and most water pipe repairs run $450 to $650, from our published price list.
5.0 stars across 1,130 reviews
Part of our plumbing team, with the tools they bring to find a leak and fix the pipe.
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
The same numbers as our pipe repair page, each a range because the house decides where it lands. You hear the number before the work starts.
Plumbing diagnosis visit
$49
Plumbing diagnosis visit, after hours
$250
Leak located (hidden or behind a wall)
$200 to $500
Water pipe repair, one section replaced
$450 to $650
Drywall opened for the repair
Priced in writing before we cut
Prices checked .
Most repairs are one section of pipe: the split or pinhole cut out and a new piece put in. Where the pipe sits decides most of the price. Exposed in a basement ceiling is the low end; inside a finished wall is higher, and we tell you before the drywall comes open.
With Comfort+ membership, any repair is 15% off, and every year includes a plumbing safety inspection that looks at the supply pipe you can see.
What’s different in Dunn Loring
Dunn Loring is small, about 770 parcels in 22027, and it was built in layers you can read off the street signs. Timber Valley Court dates to 1969 and Bright Meadows Lane to the mid 1970s, so those are copper houses at the age when pinholes begin. Arden Court is from the late 1970s. Journet Drive went up in the mid 1990s, and Harithy Drive and Coal Train Drive arrived in the early 2000s. Give us your street and the year, and we already know where in the house to look first.
The 1990s are the one to watch. More than half the homes here were built between 1980 and 1999, which is the window for gray polybutylene pipe. Not every builder used it, and some houses on Journet Drive may have copper or something newer, so we say it is possible and check by eye at the water heater or under a vanity. Plastic from that period fails at its crimped fittings more than along the pipe, which is why a leak can appear with no warning.
A few Dunn Loring houses are much older. The tax records list 54 built before 1960, including a Gallows Road house from 1889 and a Sandburg Street one from 1900. Those lines have usually been replaced in pieces over a century, so one wall may hold iron, steel and copper in a row. When we open one, we follow the pipe back to sound metal, rather than patching one spot that’s still corroded around it.
Nine in ten homes have a full basement and half are Daylight basements, with a finished room at the back. A leak upstairs has a long way to drip, and a basement ceiling hides it. If your carpet downstairs is damp and nothing is running, shut the main and watch the meter dial. If the dial still moves, the leak is under pressure, and that is the one we can find for you with a locate before we cut anything.
By the numbers
From the Census Bureau’s 2020 to 2024 survey. Median year built and heat count owner-occupied homes only.
ZIP 22027 as a whole: every Dunn Loring address. The Dunn Loring Census place is bigger: about three in four of its homes have Vienna mail.
What you’d notice
Shut every tap and appliance, then look at the little dial on the water meter. If it moves, water is leaving somewhere. Mark the number, wait twenty minutes, check again. Tell us the change and whether the main valve stops it.
Polybutylene, often stamped PB, went into houses from about 1978 to 1995. It tends to fail at the fittings without much warning, so a drip at one joint is a reason to look at the rest.
A brown ring under a bathroom, or a soft spot in the drywall, is water that’s been finding its way down for a while. A supply pipe leaks all the time; a drain only leaks when somebody runs water upstairs, and that difference tells us where to look first.
Turn everything off and watch the water meter for ten minutes. If the dial or the little leak indicator still moves, water is going somewhere, inside a wall, under a slab or out in the yard.
Need pipe leak repair in Dunn Loring?
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Before the first hard freeze
A pipe usually bursts in the hours after a cold snap, when the ice inside it thaws and the split starts to run. Five things to do before it gets that cold, then call us if something already looks wrong.
Disconnect every garden hose. A hose left on traps water in the spigot, and that’s the most common split we see. If the spigot has a shutoff inside the house, close it and open the outside tap to drain it.
A kitchen or bathroom sink on an outside wall gets the coldest air in the house. On the coldest nights, open the cabinet doors so room heat reaches the pipes, and let that tap drip.
Close crawl space vents and the garage door for the winter. Pipes that run through a crawl space, a garage ceiling or an unheated room over the garage are the ones that freeze first.
Find it now, before you need it: usually where the water line comes through the basement or crawl space wall, near the meter or the water heater. Make sure it turns. When a pipe bursts, that valve is the difference between a mop and a contractor.
Keep the thermostat at 55 or higher while you’re gone, and ask someone to look in if a cold snap comes. A frozen pipe that thaws with nobody home runs for days.
Find a pipe that’s frozen, or water where it shouldn’t be? Shut the main off and call us at (703) 997-9757. A diagnosis visit is $49, or $250 after hours, and you get the repair price before we cut into anything.
Your pipes, your paperwork
In Fairfax County the homeowner owns the whole sewer lateral, from the house to the county main, including the stretch under the street. Replacing it takes a county plumbing permit, plus a VDOT permit under a state road. 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 fixes it
Questions worth asking anybody who comes out, us included.
Because it points to the pipe. A 1975 street usually means copper that’s aging. A 1995 street raises the chance of gray plastic. We bring the right fittings instead of guessing at the door.
Anyone can check on the state’s license lookup. Ours is Virginia Class A contractor license, on every van.
A good leak call starts at the meter and the shutoffs, then narrows it down with pressure and moisture readings. The drywall comes open in one spot, not five.
Every repair on our list has a range, and you hear where yours lands before anything is cut. If someone won’t say until the job is done, keep looking.
Two of our crew going over a work order before the day's calls.
From our Google reviews
5.0 stars across 1,130 reviews. Read them on our reviews page.
The issue was with a leak in the toilet tank that technician repaired . He did a good job.
Where we work
Next door to Dunn Loring: Vienna, Falls Church, McLean, Annandale and Oakton.
Questions
Look first, worry second. Check under the sinks and by the water heater for gray plastic tubing. If you find it, plan a visit before it fails. If it’s copper or white and blue PEX, you’re fine.
In the ceiling above a finished room, behind a bar sink or a bathroom wall at the back, and at the water heater closet. We check those first.
Shut off the main water valve, then turn off the water heater (gas to pilot, or the breaker for electric). Open a faucet at the lowest point of the house to drain what’s left in the pipes. Then call (703) 997-9757: a person answers day or night, and our emergency plumbing team is on 24/7.
A plumbing diagnosis visit is $49, or $250 after hours. Finding a leak you can’t see is $200 to $500, and most water pipe repairs run $450 to $650. You get the number before we start.
Ready when you are
Shut off the main, then call, or send the form at the top. You get the price before the work, and if it can wait until morning, 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
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 Dunn Loring 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.