Slab Leak Reroute in San Juan Capistrano: Moving the Line Out of the Slab Instead of Breaking the Floor
When a water line under the slab leaks, you can jackhammer to the break or reroute around it through walls and attic. How a reroute works in Capistrano Valley, Los…
A warm spot on the floor, the sound of running water with every tap closed, or a water meter that never stops moving are classic signs of a slab leak. In San Juan Capistrano, many single-story homes built on concrete slabs in the 1960s and 1970s have copper lines buried beneath the floor. When one of those lines leaks, the fix you choose matters for your floors, your schedule and how likely the problem is to come back.
Two ways to fix a slab leak
The first is a direct spot repair. The leak is located, flooring and concrete are broken out above it, the pipe is repaired and the slab is patched. The second is a reroute. The leaking line is cut off and abandoned in the slab, and a new line is run through walls and the attic to the same fixtures.
How a reroute works
- The leak is located and the affected line is identified, often the hot line to a kitchen or bathroom.
- Both ends of that run are isolated where they leave the slab.
- New PEX-A tubing is routed overhead and dropped through walls to the fixtures.
- Small wall openings are made at each drop and patched afterward.
- The new line is pressure tested before anything is closed.
Why rerouting is often the better choice
Breaking a slab means removing tile, wood or carpet, jackhammering concrete and dealing with dust and debris inside the house. A reroute avoids that. It also moves the line somewhere it can be reached if it ever needs service. And because the old pipe under the slab is the same age everywhere, a spot repair can be followed by another leak a few feet away.
When a full repipe makes more sense
If you have had more than one slab leak, or the home has pinhole leaks above the slab too, rerouting one line at a time can turn into a series of repairs. A whole-house PEX-A repipe through the attic moves every supply line out of the slab at once.
San Juan Capistrano homes
From the historic homes near Los Rios Street and the Mission to the 1960s and 1970s tracts across Capistrano Valley and the hillside neighborhoods toward Marbella, much of the city sits on slab foundations with buried copper. Water is supplied by Santa Margarita Water District, and repipes are permitted and inspected through the City of San Juan Capistrano. In homes near the historic district we take extra care with exterior changes.
Related reading
Learn about repiping older homes or whistling pipes and what they mean. Neighbors can visit San Clemente, Dana Point and Ladera Ranch, or see every city we serve at repipeinc.com.
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Written by Repipe OC · CSLB #1087885 C-36 · 23821 Hillhurst Drive, Laguna Niguel, CA 92677 · (949) 524-2362