When a pipe bursts in a Herndon home, close the main valve and stay out of water near outlets or cords. A plumber can locate the split, replace the damaged pipe and test the line. Call the number on this page to be connected with a local plumber in Herndon.

Herndon's arrangement
The Town of Herndon runs its own water and sewer system inside town limits, buying finished water from Fairfax Water, mostly from its Corbalis plant on the Potomac. For a problem at the street or the meter, the Town's Public Works Operations Division is at 703-435-6860. Homes with a Herndon mailing address outside the town, such as areas south of the Dulles Toll Road, are generally on Fairfax Water and follow Fairfax County rules, so check your bill.
The median Herndon home was built in 1983, with older houses near the historic downtown and the W&OD Trail. The Town reports finding no lead service lines while building its inventory. Inside town limits, plumbing permits come from the Town's Building Inspections office, which accepts applications by email; outside the town, Fairfax County Land Development Services handles them.
Choosing the repair
| Situation | Usual fix | Notes |
|---|---|---|
| Freeze crack in an exterior wall | Cut out and replace the section | Check the spigot and its supply too |
| Blown washer or toilet connector | New braided connector and valve if needed | Usually the quickest burst to fix |
| Leak in the line from meter to house | Spot repair or new service line | Excavation adds time |
| Multiple failures in older copper | Replace the branch | Fewer future openings in finished walls |
Watch for
- A spreading stain below a bathroom or laundry
- Water seeping into the basement along one wall
- Low pressure at all faucets at once
- The sound of water moving with every tap shut
Seasonal pointers
Cold snaps that follow mild weather catch the most people off guard, because hoses are still attached and outdoor valves are still open. Shut and drain outdoor lines in the fall. Inside the Town, backflow devices on irrigation systems must be tested every year by a certified tester and reported to Town Building Inspections, so a replaced assembly needs a fresh test. If you smell gas while handling the leak, leave and call 911, then the gas utility on your bill: Columbia Gas of Virginia at 1-800-544-5606 serves the Town, and some Herndon addresses outside it use Washington Gas at 844-WASHGAS (844-927-4427), option 1.
Burst Pipe Repair questions in Herndon
My water provider depends on the address. How do I know whom to call?
Does a burst pipe repair need a permit here?
What should I do with the water heater after closing the main?
How do we keep an empty house from flooding during a winter trip?
More plumbing services in Herndon
Burst Pipe Repair nearby
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