Slab Leak Repair in Chapel Hill, NC

Clues that something is leaking under the concrete

• The OWASA meter keeps registering flow while every tap, toilet and appliance is off
• One stretch of tile or laminate feels noticeably warmer underfoot than the rest of the room
• Carpet edges, tack strip or the base of a wall stay damp with no plumbing fixture nearby
• You hear water moving under the floor late at night when the house is silent
• The bill climbs month over month although your habits haven't changed

Any single clue can have an innocent explanation, such as a toilet flapper that seeps. Two or more at once deserve a real test.

Chapel Hill homes and the pipe beneath them

Census survey figures put the median Chapel Hill home at 1988, and roughly 35% of the housing was built before 1980. That spread runs from older houses in the historic districts near campus to planned communities such as Meadowmont and Southern Village. Copper laid under a slab several decades ago is the usual suspect, since it can wear where it rubs against stone or concrete, or pinhole with age.

The water supply is not a known driver here. OWASA disinfects with chloramines for most of the year, switching briefly to chlorine each spring, and its 2022 report showed lead at 0 ppb and copper at 0.029 ppm at the 90th percentile, with no homes over action levels. Its service line inventory found no lead water lines in the system.

What moves the price up or down

• Locating time. Isolating hot from cold and pressure testing each side before any listening or thermal imaging.
• Repair method. Opening a small section of slab at the leak, or abandoning the buried run and piping through walls or the attic.
• Floor finish. Tile and hardwood cost more to open and match than carpet.
• Damage already done. Wet drywall, baseboards or cabinets may need drying and repair.
• Permit. The Town requires a Trade Work permit for repairing or altering plumbing, and it lists water lines by name.

When you place the call

We connect you with an independent plumber who works in Chapel Hill. It helps to report what the meter did with everything off, where the warm or wet area sits, and whether the house is in Orange County or the small Durham County portion of town. The plumber will explain whether a spot repair or a reroute makes more sense for your floor plan.