Slab Leak Repair in Orange County
Once testing points to a leak in a supply line under the slab, the next decision is how to fix it. KCB Plumbing, based in Costa Mesa and serving Orange County since 1998, compares a spot repair, a reroute, and broader repiping for your home and explains the access, disruption, and flat-rate price before you approve the work.
- Licensed · Lic #604044
- Insured & bonded
- Serving Orange County since 1998
- 5.0 on Google · 60+ reviews
- Upfront flat-rate pricing
Free over-the-phone estimates for many services. Complex jobs may need a trip charge.
Professional Slab Leak Repair in Orange County
Many Orange County homes are built on concrete slabs, with water supply lines running underneath or through the slab. When one of those lines fails, there is rarely a single correct fix. This page covers the repair side: what happens after a suspected slab leak has been tested and narrowed down.
KCB plans repairs from the testing results rather than from the symptom alone. Pressure testing and isolating parts of the supply system show which line is losing water; acoustic, thermal, and pipe-location methods help narrow where. Those findings, together with the pipe material, the home's repair history, and what sits on top of the slab, shape the options we put in front of you.
Every option is explained in plain language, with the access it needs and the work it leaves behind, so you can weigh disruption and long-term value before approving anything. Call (714) 894-6520 Monday–Friday, 7 AM–6 PM, and Saturday–Sunday, 8 AM–5 PM.
Still working out whether you have a leak at all? Start with our slab leak detection guide for meter checks and warning signs. If repeated leaks point to wider pipe problems, compare whole-home repiping.
Need Slab Leak Repair?
Free phone estimates for many services. Upfront flat-rate pricing before approved work begins.
(714) 894-6520Three Ways to Repair a Slab Leak
Spot repair: the slab is opened at the leak location, the damaged section is repaired, the line is tested, and the opening is closed. It can suit an isolated failure in otherwise sound piping, when the location is well defined and access through the floor is acceptable.
Reroute: instead of breaking into the slab, a new section of supply line is run through walls, the attic, or another accessible path, and the leaking line beneath the slab is taken out of service. A reroute can make sense when the leak sits under finished flooring, cabinetry, or another area that is hard to open, or when the line beneath the slab is likely to keep failing.
Repiping: when testing, pipe material, and a history of repeated leaks point to wider deterioration, replacing more of the supply system may be worth discussing instead of repairing one leak at a time.
Questions to Ask Before You Approve a Repair
Which line is leaking, and how was that confirmed? Where will access be made, and what flooring, cabinetry, or finishes are in the way? Is the surrounding pipe in good enough condition for a single repair, or are other leaks likely? How will the repaired or rerouted line be tested? What patching or restoration is included in the scope, and what is left for another trade?
If insurance may be involved, ask your insurer what documentation it needs before work starts. A plumbing assessment does not determine coverage, but KCB can explain the findings and the proposed repair scope for your claim conversation.
Our Process
How It Works
Review the Test Results
We start from the pressure-test and detection findings: which line is affected, roughly where, and how confident the location is.
Check Pipe and Property
We look at the visible pipe material, prior repairs, the flooring and finishes over the suspected area, and the available reroute paths.
Compare Repair Options
You get the practical choices, such as a spot repair, a reroute, or broader repiping, with the access each needs and an upfront flat-rate price.
Complete the Approved Repair
Work proceeds only on the scope you approve. Any opening or wall access is kept to what that repair requires.
Test the Line
After the repair, the affected line is tested and we explain the result and any remaining concerns before closing up.
Why Choose KCB for Slab Leak Repair
- Upfront flat-rate pricing — you approve before we start
- Licensed (#604044), insured, and bonded
- 99.9% on-time response rate
- 5.0 stars across 60+ Google reviews
- Serving Orange County since 1998
What Affects Pricing
We provide transparent, upfront pricing before any work begins. Here are the factors that affect the cost of slab leak repair:
- Repair approach: spot repair, reroute, or broader repiping
- Location and depth of the leak and what sits above it
- Length and path of any reroute
- Pipe material and the condition of the surrounding line
- Patching or restoration included in the scope
Prefer to call? Free phone estimates for many services.
Call (714) 894-6520Request an estimate
Discuss your estimate
Common Questions
Slab Leak Repair FAQ
How do you decide between a spot repair and a reroute?
It depends on where the leak is, what is above it, the pipe material, and whether the surrounding line shows signs of further failure. A spot repair can suit an isolated leak with acceptable floor access. A reroute can avoid opening the slab under finished areas or bypass a line that is likely to leak again. KCB explains the tradeoffs after testing.
Do you have to break the slab to fix a slab leak?
Not always. A spot repair does require opening the floor at the leak. A reroute runs new pipe through another accessible path, such as walls or the attic, and takes the leaking section out of service, so the slab itself may not need to be opened.
Can you repair a slab leak without detection first?
We do not recommend it. Without testing, there is no reliable way to know which line is leaking or where, and guessing can mean opening the wrong area. Repair planning starts from the detection findings.
How much does slab leak repair cost?
KCB gives an upfront, flat-rate quote for the repair you choose before any work begins, once testing has confirmed the source and location. Free phone estimates are available for many services; a slab leak usually needs an on-site assessment first, and a trip charge may apply. Read our guide to leak detection and repair
Will homeowners insurance cover slab leak repair?
Coverage varies by carrier and policy, so ask your insurance professional. A plumbing assessment does not determine coverage. Ask your insurer what documentation it needs; KCB can explain the findings and the proposed repair scope.
Customer Reviews
What Customers Say
“The owner Kevin Blue has done plumbing work for me before. He is very helpful and knowledgeable. He always arrives as promised and the work is always satisfactorily completed.”
“Keevin was extremely personable, patient (big plus!), and knowledgeable. He explained the issues that we had in our new home and answered all of our questions, and most importantly, understood that we were on a budget considering there were so many things that we needed to take care of. My husband is probably one of the most suspicious persons on earth but even he found Keevin to be very trustworthy and straightforward with his suggestions and advice.”
Related KCB resource
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Slab Leak Repair Throughout Orange County
We provide slab leak repair services across all of Orange County. Click your city to learn about local plumbing needs:
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Call us for a free over-the-phone estimate. We'll get your plumbing taken care of right.