Meter & pressure testing
Confirms the leak and isolates hot vs. cold lines.
Electronic slab leak detection
Slab Leak Detection & Repair in Los Angeles
A warm spot on the floor, the sound of running water, or a water bill that keeps climbing can all point to a leak in a pipe under your concrete slab. We pinpoint it electronically, then give you clear options to fix it — with the least damage to your floors.
- Live answer 24/7
- Flat-rate, no overtime fees
- Licensed contractor sent
- Satisfaction guaranteed
Dispatchers available now
Get a flat-rate price for slab leak detection & repair
- Price in writing before work starts
- Same rate nights, weekends & holidays
- Ask about this month's coupons
Licensed Contractor
We send one right to your door
24/7 Emergency Service
Nights, weekends & holidays
Satisfaction Guaranteed
100% on every single job
15+ Years Experience
Trusted by local homeowners
Quick answer
How do I know if I have a slab leak?
Common signs of a slab leak are a warm or hot spot on the floor (from a leaking hot water line), the sound of running water when everything is off, a water meter that keeps moving with all fixtures off, an unexplained jump in your water bill, damp or warped flooring, cracks in the floor or walls, and a water heater that runs constantly. A professional leak detection confirms it.
Slab Leak Detection & Repair
Find the slab leak precisely — then choose the right repair
A huge number of Los Angeles homes, particularly the post-war ranch homes of the San Fernando Valley, Westside, and South Bay, were built on concrete slabs with copper water lines running underneath or inside the concrete. Decades of hard water, abrasion against concrete and gravel, and soil movement eventually wear pinholes in those lines. That's a slab leak.
Slab leak detection is a process of elimination done with instruments. We confirm the leak with a meter and pressure test, isolate whether it's on the hot or cold side, then trace the line and use acoustic listening equipment and thermal imaging to pinpoint the leak — usually to within a small area of floor — before anything is opened.
Once it's found, you have three repair options, each with a flat-rate price: a direct spot repair through the slab at the leak; a reroute that abandons the leaking line under the slab and runs new pipe through the walls or attic; or, in some cases, epoxy lining the existing line from the inside. If your lines have leaked before, a reroute is usually the better long-term value.
What's included
Our slab leak detection & repair services.
Everything we handle under slab leak detection & repair across Los Angeles, Orange County, the Valley, and the Westside.
Acoustic leak detection
Ground microphones pinpoint the sound of escaping water.
Thermal imaging
Locates hot water slab leaks by heat signature.
Line tracing
Maps the route of the pipe under the slab.
Direct (spot) slab repair
A small opening in the slab at the leak point, repaired and patched.
Slab leak reroute
New overhead or in-wall line replaces the leaking under-slab pipe.
Epoxy line restoration
Where suitable, pipes relined from the inside.
Written report
Findings and photos to share with your insurance adjuster.
Get a flat-rate slab leak detection & repair quote
Tell us what's going on — we'll give you a written price before any work begins.
Don't wait on these
Signs of a slab leak
Small plumbing problems get expensive fast. If you notice any of these, call before it turns into water damage or an emergency.
Seeing one or more of these signs?
A dispatcher can usually tell you over the phone whether it's urgent — no charge to ask.
Call 877-481-4075- A warm or hot spot on tile, wood, or carpeted floor
- The sound of running water with everything turned off
- The water meter moves when no water is being used
- An unexplained increase in your water bill
- Damp carpet, warped wood, or loose tiles
- Mold or mildew odor near the floor or baseboards
- New cracks in the slab, flooring, or walls
- The water heater runs constantly or never seems to stop
How it works
From your call to a job done right.
No guesswork and no surprise invoices — here's exactly what happens when you book with us.
- 01
Confirm the leak
Meter and pressure tests confirm a leak and which line it's on.
- 02
Pinpoint it
Acoustic and thermal equipment narrow it to a precise spot.
- 03
Choose your repair
Spot repair, reroute, or lining — flat-rate prices for each.
- 04
Repair & verify
Repaired, pressure-tested, and the meter checked to confirm.
Honest pricing
How much does slab leak detection & repair cost?
Every job is different, so we don't guess over the phone and then change the number on site. We look at the problem, then give you a written flat-rate price before any work starts. The price you approve is the price you pay — and it's the same at 3 a.m. on a Sunday as it is on a Tuesday afternoon.
What affects the price:
- How deep and where the leak is under the slab
- Spot repair versus reroute versus lining
- Flooring type at the leak point (tile, hardwood, carpet)
- Whether the line has leaked before or has multiple leaks
Real customers
What homeowners say after the rescue.
Our reviews come from real emergencies — and how we handled them.
Emergency Sewer Backup
“We had a sewer backup on a Sunday night — our laundry room was completely flooded. I called Rooter Rescue at 9 PM and they had a tech at the door within 45 minutes. He cleared a major root intrusion in the main line and had everything flowing again by midnight. I couldn't believe the response time. They're the only plumber I'll ever call.”
Sarah M.
Los Angeles, CA
Slab Leak Detection
“My water bill had been climbing for months and I couldn't figure out why. Rooter Rescue used electronic detection equipment to find a slab leak under my kitchen floor without ripping up a single tile — found it in under an hour. The repair was clean, fast, and came in exactly at the estimate. These guys are total pros.”
Mike T.
Los Angeles, CA
Water Heater Replacement
“My water heater died on a Friday morning. I called three plumbers — two couldn't get to me until next week. Rooter Rescue had a new unit installed that same afternoon. The tech explained every option clearly, gave me a fair price without any pressure, and left the work area cleaner than he found it. Five stars isn't enough.”
Jennifer L.
Los Angeles, CA
Specials & coupons
Save on your next plumbing repair.
Mention a coupon when you call or show it to your technician — we'll apply it to your written quote.
$50 OFF
Any Plumbing Repair
Save on any plumbing repair — leaks, fixtures, valves, drains, and more.
RESCUE50Limited-time offer
Minimum $300 job. Excludes service call / diagnostic fee.
$100 OFF
Water Heater Replacement
Tank or tankless — same-day installation available on most models.
HOTWATER100Limited-time offer
Valid on full water heater replacement with installation.
$35 OFF
Drain Cleaning
Kitchen, bath, laundry, or main line — cleared with rooter or hydro-jet.
DRAIN35Limited-time offer
One drain per visit. Not valid with camera inspection special.
FAQ
Slab Leak Detection & Repair questions, answered.
Straight answers to what homeowners ask us most about slab leak detection & repair.
Most slab leaks in Southern California come from copper lines wearing thin over decades — hard water corrosion from the inside, abrasion where pipes rub against concrete or gravel, and stress from soil movement and settling. Poor original installation and high water pressure also contribute.
Related services
Often booked together.
Service area
Slab Leak Detection & Repair near you.
Local service locations across Los Angeles County and Orange County — pick yours for local phone numbers and directions.
- Slab Leak Detection & Repair in Beverly Hills
- Slab Leak Detection & Repair in Burbank
- Slab Leak Detection & Repair in Encino
- Slab Leak Detection & Repair in Hollywood
- Slab Leak Detection & Repair in Los Angeles
- Slab Leak Detection & Repair in Malibu
- Slab Leak Detection & Repair in Norwalk
- Slab Leak Detection & Repair in Oak Park
- Slab Leak Detection & Repair in Pasadena
- Slab Leak Detection & Repair in Santa Ana
- Slab Leak Detection & Repair in Santa Monica
- Slab Leak Detection & Repair in Tarzana
- Slab Leak Detection & Repair in West Hills
- Slab Leak Detection & Repair in Winnetka
- Slab Leak Detection & Repair in North Hollywood
- Slab Leak Detection & Repair in Toluca Lake
- Slab Leak Detection & Repair in Culver City
- Slab Leak Detection & Repair in West Hollywood
Available right now — 24/7
Need slab leak detection & repair? Call now.
A live dispatcher answers every call, 24/7. Get a flat-rate price for slab leak detection & repair with no overtime fees for nights, weekends, or holidays.
Get in touch
Request a free slab leak detection & repair quote
Tell us what's going on and we'll get back to you within the hour during business hours — or call 877-481-4075 any time for immediate help.
Phone · 24/7877-481-4075Emailinfo@rooterrescueplumbing.comService AreaLos Angeles, Santa Monica, Beverly Hills, Burbank, Glendale, Pasadena, Long Beach, Torrance, Inglewood & all surrounding LA communities
HoursOpen 24 Hours / 7 Days
Active water emergency? Don't fill out a form — call immediately. Every minute of active flooding causes structural damage.