Coastal slab leaks in older residential.
Copper supply lines fail at fittings or pinhole through corrosion in older Huntington Beach residential across Downtown HB, Sunset Beach, and Northeast Huntington — and coastal salt-air accelerates that copper failure at coastal proximity. Often invisible until flooring buckles or the water bill spikes. We locate with acoustic or thermal detection, make controlled slab access, repair, and dry to standard, with high mold risk if not dried within 48–72 hours.