Emergency Slab Leak Detection & Repair in Chapel Hill, NC

A slab leak is a leak in the water lines running beneath a concrete slab foundation, and it only applies to homes actually built that way. Much of older Chapel Hill sits over crawl spaces, where a leak is reachable from below and is a different, usually simpler repair. Slab construction is more common in the newer builds around Meadowmont, Southern Village and the developments toward the Chatham County line.

Either way, the fear people bring to this job is the image of a jackhammer tearing up the whole floor to find the problem. Modern detection makes that unnecessary. We locate the leak precisely first, so the repair is a targeted opening, not a search.

Signs of a slab leak

• ✓A warm spot on the floor, usually meaning the hot water line is leaking
• ✓The sound of running water with every fixture off
• ✓A water bill that climbed with no explanation
• ✓Cracks appearing in flooring or nearby walls as the wet soil shifts
• ✓Damp or warped flooring in one specific area

Locating it and choosing the repair

We pinpoint the leak with acoustic equipment, pressure testing and thermal imaging, which maps a hot water leak by the heat signature it leaves in the slab. That gives us an exact spot rather than a guess, and it is what makes a targeted repair possible at all.

From there there are three honest paths, and which one fits depends on the pipe's age, how reachable the leak is, and whether this is the first slab leak the house has had. A spot repair opens the slab at the single leak and fixes that section. A reroute abandons the failed under-slab run and takes new pipe overhead through walls and ceilings instead. A full repipe is often the right call once a house has had more than one slab leak, since a second failure in same-age pipe usually means a third is coming.

Why the slab should be broken as few times as possible

The goal on any slab job is to open the concrete the minimum number of times over the life of the house, which is why the repair-versus-reroute-versus-repipe decision matters more here than on almost any other kind of plumbing work. Repeated spot repairs on an aging under-slab line can add up to more disruption and cost than a single reroute or repipe would have, and we lay out the real trade-offs of each option before any concrete comes up rather than defaulting to the smallest visible job.