A slab leak in Bristow is a pipe leaking in or beneath a concrete floor, which in this area usually means a basement slab, a townhouse ground floor or a garage. Prince William Water supplies the water, and the lines on private property are the owner's responsibility. Call the number on this page to be connected with a local plumber in Bristow.
Bristow sits within the Linton Hall area between Manassas and Gainesville, and most of it is HOA subdivisions built since 2000; the median home dates to about 2004. Newer construction cuts the odds of a slab leak, but it does not eliminate them, since PEX and fittings can be damaged when slabs and basements are poured.
What to do now
- Run the meter test. With all water off, watch the leak indicator on the meter for several minutes.
- Rule out fixtures. A toilet that refills on its own or an irrigation zone stuck open can mimic a hidden leak.
- Find the wet or warm spot. Note where the floor is damp, discolored or warm, and on which level.
- Close the main if water is spreading. Most Bristow homes have the main shutoff in the basement or utility room.
- Check your paperwork. A builder or home warranty may cover plumbing defects in a recent house.
- Call to have it located. A plumber marks the exact spot before any concrete is cut.
What the symptoms point to
| Symptom | Likely cause |
|---|---|
| Meter moving with everything off | Supply leak past the meter |
| Warm stripe on a ground-floor tile or vinyl floor | Hot water line in the slab |
| Wet carpet in a finished basement after a dry week | Pipe leak rather than groundwater |
| Damp area only after a basement shower or toilet use | Drain line cracked or separated under the floor |
| Water near the foundation where the service line enters | Leak on the owner's service line |
Cost factors
- How hard the leak is to pinpoint
- Repairing through the slab versus rerouting through finished walls
- Flooring and drywall that must be opened and restored
- Whether a builder or home warranty covers part of it
- Prince William County permits: the County's Building Development Division ties a plumbing permit to extending water piping more than 10 feet or changing pipe material
Prince William Water's West System blends Potomac River water treated by Fairfax Water with Lake Manassas water treated by the City of Manassas, and the utility states that all service lines it owns are non-lead. For main breaks or outages, its emergency dispatch line is 703-335-7990.
Slab Leak Repair questions in Bristow
My home is fairly new. Can it still have a slab leak?
Who is responsible for the water line between the meter and the house?
Can a drain line under the basement floor leak too?
How does a plumber find a leak under concrete?
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