Aliso Viejo Slab Leak Repair
Aliso Viejo’s hillside tracts went up through the 1980s and 1990s, and the copper cast into those slabs is now old enough to fail. Aliso Viejo slab leak repair finds the bad line without breaking the floor, then reroutes it overhead in PEX rather than cutting the slab to chase one spot.
- 60-min response window
- Overhead PEX reroute on aged copper
- Tile & flooring untouched
- CSLB License #920054
Worth saying up front: we handle slab and water-line work only. Pool and spa leaks, irrigation lines, and natural-gas lines aren’t ours. Anything in the slab, under the foundation, or in a wall feeding a fixture is what we’re here for.
Why Aliso Viejo's hillside slabs start leaking after thirty years
Aliso Viejo was carved into the south county hills, and that terrain is the first reason slabs leak here. The clay-rich soil under these graded pads takes on water through the rainy months and dries hard through summer, and the hillside grade adds its own pull. A foundation worked that way shifts by small amounts season after season, and the copper set in the slab is what wears against it. Enough of those cycles and a line gives way.
Then there’s age. Aliso Viejo opened for homes in the early 1980s and filled in fast through the ’80s and ’90s, almost all of it on copper supply lines. Thirty to forty years on, the inside of that pipe is thinned and pitted. Sealed in concrete, a slab leak can run for weeks before a warm floor or a jumped water bill finally shows it. By then it has usually reached the flooring.
So here is the call we make on every Aliso Viejo slab job. Copper that has aged this evenly rarely fails just once; the spot that goes first is usually the first of several on that run. Patching it means breaking concrete now and most likely again later, and the demolition can jar the pipe beside it into failing too. Instead we abandon the bad run in place and bring water back through fresh PEX up in the attic, which ends the leak without ever opening the floor.
No Callout Charge
Your service call is free. No trip charges, no surprise add-ons before we've looked at anything.
Always On Call
Nights, weekends, holidays, slab leaks don't wait. We isolate the line, cap the water, and stop the damage now.
Written Estimates
Reroute scope, in writing, with the diagnostic behind it. You see the price before any drywall opens.
Six slab jobs we run across Aliso Viejo most weeks.
Six shapes of a single problem: water getting out of a line buried in the slab. Whichever one your house turns out to be, the concrete stays shut while we fix it, and the written quote follows the diagnostic.
Slab Leak Detection
Finding the line is the whole first visit, and the floor stays intact for it. An acoustic probe traces the sound along the pipe, a pressure gauge proves the system is bleeding water, and on a hot-side leak a thermal camera backs up the read. The deliverable is a specific failed line, nothing torn open.
- Which side failed, hot or cold, nailed down
- Traced at the pipe, not through the tile
- Thermal saved for hot-side cases
Overhead PEX Reroute
Once the diagnostic puts the leak under the slab, this is the repair. We strand the dead line in the concrete and run its replacement in PEX-A overhead, wall to attic to fixture. The floor is never touched, and every other foot of that aging run comes out of service at the same time.
- A pair of small wall openings, that's it
- Replacement PEX-A run through the attic
- Verified under pressure, workmanship warranty
Accessible Spot Repair
Some failures sit outside the slab entirely, a corroded angle stop, a leaking heater connection, a pinhole in an opened-up wall. Those need no reroute: we expose the one fitting, change it out, and patch behind us on the same trip.
- Just the failed fitting replaced
- Owner picks the copper-or-PEX swap
- Pressure-confirmed before we wrap up
Hot-Side Slab Diagnosis
Aliso Viejo's 1980s and 1990s copper tends to surrender the hot line first, hotter water is harder on the pipe wall decade over decade. Sorting hot from cold before we cut means we open the run that truly failed instead of guessing at it.
- Heater cold-inlet shut to separate the sides
- Hot line confirmed acoustically first
- Thermal only as a confirmation
Whole-House PEX Repipe
When a hillside home from the city's 1980s-90s growth keeps surrendering leaks on the same tired copper, section-by-section patching stops making sense. A whole-house PEX-A repipe, routed overhead with the slab untouched, takes out the entire system in one organized job.
- Both hot and cold lines remade in PEX-A
- Staged so water stays on at the house
- Service pressure checked and dialed in
Insurance Claim Assistance
Few homeowner claims carry the documentation a slab leak does, and that is where they tend to stall. We put the package together ourselves, the cause of loss, the locating proof, a scope broken out by line, and give the carrier what it takes to sign off.
- Cause of loss written sudden-and-accidental
- The reroute backed up for the adjuster
- Approved share billed to the carrier direct
How we pin down an Aliso Viejo slab leak with the floor still closed.
What people picture is a crew showing up to break concrete and start hunting. We do the reverse. An Aliso Viejo slab leak goes through six electronic steps that start at the water meter and finish with one clear answer, hot line or cold, and a plain call on whether to spot-fix or reroute.
Nothing opens until that answer is in. Knowing which line failed, and roughly where, ahead of time is what keeps the job to a single neat cut instead of a ruined floor.
The meter test
We start at the meter with the house shut down. A dial that won't hold still means water is leaving the system somewhere, and that is what sends us looking.
Inside or outside the slab?
Closing the main at the house sorts it: if the dial stops, the leak is in or under the slab; if it keeps turning, the trouble is on the line out to the street, which is a different repair.
Hot side or cold side?
We shut the cold inlet at the water heater next. A leak signal that fades points to the hot line; one that stays steady points to the cold. A warm floor alone doesn't settle it, since a hot line won't always heat the surface, so we go by the acoustics.
Acoustic locating through the piping
We listen on the pipe itself, at exposed shutoffs, the heater, and any run we can reach, not through the floor, which only deadens the sound. The point isn't a mark on the tile; it's knowing the failed line so the patch-or-bypass choice is clear.
Pressure-test confirmation
With a gauge on a hose bib and the main shut, a steady drop confirms a live leak on its own, separate from the listening, and tells us roughly how fast the line is losing water.
Thermal imaging when it helps
On a hot-side leak beneath tile or wood, a thermal pass is a useful second look. We use it to confirm what we've already heard, not as routine, and most jobs don't need it.
Why we won't cut your Aliso Viejo slab to chase a leak.
On an Aliso Viejo slab leak, the failed in-slab line always gets bypassed overhead, never opened up and patched. We talk every homeowner through the why before a tool comes off the truck.
It comes down to odds and collateral. A buried copper run that fails in one place has usually begun failing along its length, so a patch tends to be the first of several. And the act of breaking concrete, the sawing, the hammering, a pipe bumped while it sits exposed, can itself be what starts the next leak. Pay less now and you pay much more later.
New line, run above the slab
The replacement PEX travels up a wall, along the attic joists, and down to the fixture, while the dead copper stays sealed in the slab. Nothing gets sawn, nothing gets jarred, and the remainder of the run is left undisturbed.
Cutting concrete to patch in place
Open the slab to mend one length of old copper and the rest of that run stays right where it was, still failing. The follow-on leak almost always shows on the same line, and the demolition can shake nearby pipe loose.
Bypass the failing line overhead
For any pipe failure under the concrete, hot or coldBypassing puts the failing under-slab length out of service: fresh PEX-A is run through walls and attic, and the spent copper is left capped in the concrete with nothing moving through it. The leak ends. The reasons are structural, not cosmetic:
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The whole vulnerable length is retired, not one point If a stretch of this-era in-slab copper has failed, the next stretch isn't far off, so we replace the run rather than the hole.
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Good pipe is spared the shock Cutting and hammering send vibration through the slab and can turn one leak into two a short way off; bypassing sidesteps that completely.
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Finishes stay intact The job goes through a couple of small drywall openings, with no flooring lifted, no slab re-poured, and no cabinetry or trim to rebuild after.
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There is a warranty behind it Newly run PEX is covered for parts and labor; a patch laid on worn copper isn't, and a straight plumber won't pretend it is.
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Post-tension foundations are protected Aliso Viejo's newer phases sit on post-tension slabs that can't be cut without risk, so bypassing is the only safe route, and we hold the older slabs to the same standard.
Accessible spot repair
When the leak is NOT in the slabA spot repair earns its place in one situation only: the leak was never down in the slab. It's reachable without breaking concrete, and the diagnostic usually tells us that right away.
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At a shutoff or angle stop you can get to, beneath a sink, behind a toilet, at the laundry box pull the failed fitting, set the new one, finished.
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At the water-heater tie-in, a flex line, a dielectric union, the inlet itself, every part visible and repairable with nothing opened up.
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Inside an accessible wall, a pinhole behind drywall serving a fixture rather than buried beneath the slab one tidy cut, swap the length, patch it back.
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Never into the slab If the diagnostic lands the leak in concrete, the concrete stays closed and we bypass it, whatever the number.
When another outfit offers to saw your slab open to patch one spot of old copper, get a second opinion. Neither the dollars nor the structural odds tend to be on your side.
Our thanks to the people who keep Aliso Viejo running..
A 5% discount (up to $200 off) for first responders, military, healthcare, teachers, seniors, and nonprofit staff serving Aliso Viejo and Orange County. Mention "Community Heroes" when you call our Aliso Viejo dispatch; we'll take care of the rest.
Applies to repairs over $500. Cannot be combined with other promotions. Proof of eligibility may be requested at the time of service.
The Aliso Viejo neighborhoods we run slab calls through each week.
Our Enterprise office sits right in Aliso Viejo, so a technician is on a slab leak here in well under an hour, with Aliso Creek Road and the 73 keeping the hillsides close.
Aliso Viejo Office
Aliso Viejo, CA 92656
Aliso Viejo neighborhoods on our slab route
The communities we're in most weeks. Close by but not on the list? We still cover it, just call.
Slab leak specialists serving Aliso Viejo since 2008.
Cali's Choice
Leak detection and slab leak specialists serving Aliso Viejo and Orange County.
Slab leaks repaired in 92656
Spot repairs and overhead reroutes across Aliso Viejo, combined.
California License
General Building and Plumbing classifications. Bonded & insured statewide.
Leak detection
Free when we do the slab repair.
What homeowners say about our slab leak work.
Verified Google reviews from slab leak repair jobs our team has handled.
I suffered a slab leak and then an unrelated leak, and used Cali's Choice for both. Sergio was the lead, upfront, courteous, and did very good work with real attention to detail. The second time was just as good. I'd recommend Sergio and Cali's Choice to anyone.
I could hear water running in my bathroom wall, and it turned out to be a slab leak. John B came out to give the estimate and do the work, and he explained everything along the way. He even came back on his day off to finish. The price was reasonable and everything works great now. Highly recommend.
A water leak under our slab was carefully fixed by Sergio and Levi. They worked eleven hours straight so we could have running water that evening. The estimate was reasonable, the repairs were explained, and they cleaned up after the job. A-plus all the way.
The insurance side is ours to handle.
When a slab leak soaks flooring and drywall, the claim behind it is one of the most demanding a homeowner policy ever processes. The adjuster expects materials a homeowner rarely has on hand, written sudden-and-accidental cause of loss, a scope split out item by item, time-stamped photographs of the actual failed pipe. A single gap and the claim sits while the damage grows.
We take all of that off you and run the claim from the first call through to payout.
- We write the cause of loss the way carriers expect to read it: sudden-and-accidental language, which line let go, hot or cold, the home’s age, and the pipe material.
- We assemble the photographs, the locating data, the access point, the failed copper, and the damage around it, each shot dated and captioned.
- We break the scope out item by item, spot repair or reroute, with the diagnostic reasoning sitting next to every entry.
- We talk to the adjuster directly so you don’t have to, push back when they push back, and forward more evidence on request.
- We make the case for the reroute, because carriers tend to approve a slab spot-repair on sight and question a reroute on old copper, and the diagnostic backs us up.
What you'll actually pay for an Aliso Viejo slab repair.
Straight talk: nobody can hand you a firm slab leak repair cost from a website. The same call can run three times higher or lower depending on what turns up, one failed line or a few, a single story or two, an attic that's open or finished. What we can do is name the things that move a reroute's price, so the quote makes sense the moment you read it.
What the price hinges on
How much pipe we bypass
Routing one hot run from the heater out to a wing is the routine job; multiple runs, or a full-house PEX repipe, climb from there.
What shape the copper is in
When 1980s-90s copper fails in one place, the rest of the run is often near the end too, which can turn a one-line bypass into a whole repipe.
How far and how reachable the run is
The length of the new line and how tight the attic is decide the hours. A single-story home goes fast; two stories under a finished attic take more.
How many openings the path needs
Two small drywall cuts cover the typical job; an awkward path may take a third, and the patch and texture work ride along in the quote.
Whether damage got there first
If flooring or drywall is already soaked, the dry-out and restoration are a separate, non-plumbing scope; we document it for the claim, but it isn't on our invoice.
What does a slab leak usually look like before it's obvious?
A few quiet tells: a patch of floor that stays warm for no reason, a water bill that climbs while nothing about your use changed, the hush of water running with every tap off, or a meter that keeps turning after the house is shut down. Any one is worth a call.
How fast can you reach my Aliso Viejo home for a slab leak?
Inside the hour, day or night. Our office is right here in Aliso Viejo off Enterprise, so we’re rarely more than a few minutes across town, whether you’re up in Westridge or down toward Laguna Audubon. We confirm it’s a slab leak before anyone discusses repairs.
Will fixing it mean breaking up my floor?
No. The slab stays shut. When a buried line fails we cap it and run new PEX overhead through the attic instead, so it’s two small drywall openings rather than a torn-up floor, with no demo to shake the rest of the run loose.
Our Westridge home is from the early '90s and on its second slab leak. Is the whole house next?
Probably that whole run, not the whole house. In a home of this age the copper is the same vintage throughout, so a second failure on one line is usually where we reroute that line in full instead of waiting for a third. Other runs we leave unless the diagnostic flags them.
How do you decide between a spot repair and a reroute?
It’s about where the leak actually is. Reachable and out of the slab, an angle stop, a heater connection, an open wall, we spot-fix it. In the concrete, it’s a reroute every time, since patching buried copper tends to set up the next failure and the demo can disturb nearby pipe.
We're in one of the newer Aliso Viejo communities on a post-tension slab. Does that change the fix?
It takes cutting off the table, which suits us, we don’t cut slabs anyway. The city’s newer phases, places like Glenwood and Vantis, sit on post-tension foundations that should never be cored, so they get the same overhead PEX reroute we’d run on an older conventional slab.
Will homeowners insurance cover an Aliso Viejo slab leak?
Usually the damage, not the pipe. A typical HO-3 policy covers the water damage a slab leak causes, the soaked flooring, drywall, and dry-out, but leaves the line repair itself to you. We document both sides so the adjuster gets a clean file. The insurance section above walks through how we run it.
How do you find the leak without opening the slab?
We prove water is escaping at the meter, split hot from cold at the heater, then trace it by listening on the pipe at reachable shutoffs and runs rather than through the slab, which only muffles the sound. A pressure test confirms the line, and a thermal pass backs up a hot-side leak under tile. Nothing opens until the line is named.
We're on a hillside lot with heavy clay soil. Does that make slab leaks more likely?
It contributes. The clay under these hillside pads swells with the rains and shrinks through the dry months, and that movement works on the slab and the copper set in it year after year. It’s a real factor, though aged pipe and pressure matter too, so we weigh all three before we call it.
Can you bill the slab work to my insurer directly?
For most major carriers in the area, yes. We submit the scope of loss, work the claim with your adjuster, and bill the covered portion straight to them. You handle the deductible and we carry the rest of the paperwork.
Slab leak in an Aliso Viejo home? A local tech, same-hour response.
Local technician. Local truck. Written quote, spot-repair vs. reroute, before we touch a thing. If we can't help, we'll tell you who can.
65 Enterprise, Ste 400C · Aliso Viejo, CA 92656 · CSLB #920054