Slab Leak Repair in Del Mar, CA

Signs worth investigating

• The meter registers flow when every fixture is off
• Stone or tile feels warm in one spot
• Baseboards swell or stain on an interior wall
• Water sounds under the floor at night
• Usage on the city water bill rises without explanation

Before deciding it's the slab, check toilets, irrigation valves and any outdoor shower or pool fill.

Del Mar conditions

Del Mar is a small coastal city. Older homes may sit on raised foundations, where a leak shows up in the crawl space, while slab-built houses hide their supply lines under concrete. Salt air is hard on exterior fixtures here, but under-floor leaks come from abrasion, age or a failed fitting.

The City buys untreated water from the San Diego County Water Authority, has it treated at the City of San Diego's Miramar plant, and stores it in its own reservoirs. The water is chloraminated and hard, averaging about 13.4 grains per gallon. That hardness is a real issue for water heaters and fixtures, though the city's report doesn't tie it to slab leaks. The City has also completed its initial lead service line inventory, which is linked from its water quality report.

For a problem on the City's side, such as water coming up at the meter or in the street, Public Works is at (858) 755-3294, with after-hours calls going to North County Dispatch at 858-756-1126.

What moves the cost

• Time to isolate the leaking line and find the spot
• Repairing through the slab or rerouting new pipe through walls or the attic
• High-end flooring over the leak, such as stone, which is harder to match
• The condition of the rest of the buried piping
• Water damage repair
• Permits, which Del Mar Building & Safety Services accepts online through eTRAKiT

When you call

You'll be connected with an independent plumber who covers Del Mar. Say whether the house is on a slab or a raised foundation, what the meter showed, and where you noticed warmth or moisture. If water is spreading, close the main shutoff first. It also helps to know whether anyone has worked on the buried lines before, since an earlier spot repair or partial reroute tells the plumber which pipe is original.