Leak Detection in Chapel Hill, NC

Warning signs to watch for

• Two or more OWASA bills in a row that are higher than your household's habits explain
• The meter's leak indicator turning while no tap, toilet or appliance is running
• Warm spots on a tile floor, which can point to a hot water line under a slab
• Drywall that feels soft, or a yellow ring on a ceiling below a bathroom
• Water heater or pump cycling on when nobody has used water
• Irrigation zones that leave one patch of lawn wet days after a cycle

What's behind leaks in Chapel Hill houses

Chapel Hill's housing is mostly from the 1970s through the 2000s, with a median build year of 1988. About 35% of homes went up before 1980, so a fair number of houses in the historic districts near campus, such as Gimghoul, still carry original supply piping and fittings that have had decades to wear. Newer planned neighborhoods like Meadowmont and Southern Village tend to leak at fittings, valves and fixture connections instead of in the pipe itself.

OWASA refers to the pipe from its distribution system to your house as your private service line, which puts that run on the owner. OWASA does not spell out the exact point where its part ends, so if water is pooling near the meter box, call OWASA before you dig. Its service line inventory found no lead water lines in its area, which rules out one worry but not the age of the pipes inside your walls.

Irrigation is a common source of quiet water loss here. OWASA requires a backflow device on any home with an irrigation system or a pool, tested every year by an OWASA-certified tester, and a cracked lateral or a weeping valve box can run unnoticed for weeks.

What affects the cost

• How many branches the plumber has to isolate and test before the source is clear
• Whether the leak is in a wall, under a slab, in a crawl space or in the yard
• Equipment needed, such as acoustic listening gear or thermal imaging
• Repair scope once the leak is found, and whether the Town's permit applies

What happens when you call

You'll be connected with an independent plumber who works in Chapel Hill. Expect questions about your recent bills and where you've seen moisture. If the fix involves repairing or altering plumbing, including a water or sewer line, the Town of Chapel Hill requires a Trade Work permit, and the plumber can tell you whether your repair falls under it.