Leak Detection
Slab Leak Detection in Los Angeles
Find and fix supply leaks under your concrete slab without tearing up the whole floor.
- Licensed & Insured
- Family Owned Since 2015
- 24/7 Emergency Service
- 200+ Five-Star Reviews
A slab leak is a leak in a supply line routed under the concrete foundation of your home. LA's post-war tract housing — vast swaths of the Valley, South Bay, and East LA — was built with copper supply lines run directly in or under the slab. After 50+ years, those lines develop pinhole leaks. Left alone, a slab leak wastes thousands of gallons a month and can eventually undermine the foundation. We pinpoint with thermal and acoustic tools, then plan the least-destructive repair — usually an attic reroute, sometimes a spot break-in.
What's Involved
Thermal Imaging of the Slab
FLIR thermal camera shows the warm (or cool) spot where the leaked water has changed the floor temperature. Non-destructive first pass.
Acoustic Pinpoint
Sensitive ground microphones locate the precise foot where pressurized water is escaping under the slab.
Pressure Isolation
We isolate hot-side vs. cold-side, and zone-by-zone, so we know which supply branch has the leak before any repair.
Repair Planning
After pinpoint we recommend the least-invasive fix: attic reroute (usually cheaper than slab break-in), spot repair, or partial repipe if multiple leaks are likely imminent.
Written Documentation
Photo-documented report for your records and any insurance claim. Ready for adjuster review.
Part of Our Broader Leak Detection Service
Your water bill jumped. You hear running water when nothing is on. A patch of the floor is warm. There's a wet spot on the ceiling but no bathroom above…
Frequently Asked Questions
How do I know if I have a slab leak?
Warm spot on the floor, sound of running water when everything is off, water bill creeping up, moisture along baseboards, hot water heater running more than normal, or small cracks appearing in slab — any two of these together warrant a pinpoint call.
Do you have to break up the slab to fix it?
Usually not. Rerouting the affected line through the attic or walls is typically cheaper and less disruptive than breaking concrete. Break-in is reserved for slabs where reroute isn't practical.
How much does slab leak pinpoint + repair cost?
Pinpoint detection $395–$575. Attic reroute repair $1,800–$3,800. Slab break-in repair $2,400–$5,500. Whole-line repipe (for multiple leaks) $3,500–$8,000.
Ready to Get It Fixed?
Call us now or send a message — we respond in minutes, not hours.