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Licensed slab leak specialists serving Orange County since 2016
Under-Slab Pipe Repair Fullerton CA Done Right the First Time
Under-Slab Pipe Repair Fullerton CA means finding the failed pipe beneath your foundation and fixing it without tearing your home apart. We handle copper, PEX, and PVC lines for homeowners across Orange County, from Amerige Heights to Sunny Hills. If your water bill jumped or your floors feel warm, call 657-354-1087 and we will pinpoint the leak the same day.
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What is included
What Our Under-Slab Pipe Repair Includes
Every under-slab pipe repair we perform in Fullerton includes the full scope from detection to finished patch. We do not hand off parts of the job to subcontractors. Here is what is covered when you hire us.
Electronic Leak Detection
We pressurize your system and use acoustic leak detection equipment, a thermal imaging camera, and a moisture meter to pinpoint the exact failure point. You see the marked location and the evidence before we cut any concrete.
Precise Concrete Access
We cut a minimal access opening, typically 2 feet by 2 feet, using a concrete saw with dust control. The cut is measured and marked so your flooring contractor knows exactly what to expect when it is time to re-cover the patch.
Pipe Replacement or Reroute
We replace the damaged section with Uponor PEX tubing or NIBCO copper pipe and new fittings rated for underground use. If the line is corroded throughout, we recommend water line rerouting through the attic instead of repeated spot repairs.
Pressure Testing and Verification
Before we patch, we pressure-test the repaired line to 100 PSI for at least 30 minutes. You see the gauge hold steady. If it drops, we find the second leak now, not after your floor is back down.
Concrete Patch and Cleanup
We fill the access opening with concrete patch, level it to your existing slab, and clean the work area. We leave you with a written repair summary, test results, and a workmanship warranty on the new pipe section.
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Service overview
What Under-Slab Pipe Repair Fullerton CA Actually Involves
Under-Slab Pipe Repair Fullerton CA is the specialized trade of locating, accessing, and replacing or rerouting the water and drain lines that run beneath a concrete foundation. When a copper pipe corrodes or a joint fails, water escapes into the soil under your slab. We use acoustic leak detection equipment and a thermal imaging camera to map the exact failure point before we ever touch concrete. Then we cut a precise access opening, replace the damaged section with code-compliant PEX tubing or copper, pressure-test the line, and patch the slab with concrete patch matched to your floor.
Fullerton's housing stock ranges from 1920s bungalows near downtown to 1980s tract homes in Coyote Hills, and each era brings its own pipe problems. Older galvanized and copper lines corrode from the inside out, while newer builds sometimes suffer pipe joint failure from soil movement. A water bill spike of $80 to $200 a month is the most common early warning. If you search for under-slab pipe repair in Fullerton CA near me, you want a crew that knows these neighborhoods and can get to the leak fast.
- Minimal Concrete Damage — We use a video pipe inspection camera and pipe locator to mark the exact failure point, then cut the smallest possible access opening. Most repairs need a 2-foot by 2-foot cut instead of a trench across your living room. That means less dust, less patching, and your flooring goes back down sooner.
- Same-Day Leak Location — Call before noon and we can usually be on-site the same day with electronic leak detection wand and pressure testing gauge in hand. We confirm whether it is a hot water line leak or cold water line leak, show you the reading, and give you a flat repair price before any concrete comes up.
- Code-Correct Repairs — Every repair we make follows the IAPMO Uniform Plumbing Code and California Contractor License (C-36 Plumbing) standards. We use Uponor PEX or NIBCO copper fittings rated for underground use, pressure-test to 100 PSI, and leave you with documentation of the repair for your records or a future home sale.
- 10 Years Serving Orange County — Slab Leak Pros has been fixing under-slab plumbing in Fullerton since 2016. We know which neighborhoods have aggressive soil, which builders used thin-wall copper, and how to get a permit pulled quickly with the city. That local knowledge saves you time and money on every job.
- Flat-Rate Pricing Upfront — You get a written price before we cut concrete. No hourly surprises, no change orders mid-job. Our typical under-slab pipe repair cost Fullerton CA ranges from $1,200 to $4,500 depending on access difficulty and pipe length, and we tell you which end of that range you are in before we start.
- We Cut Less Concrete — Because we use acoustic leak detection equipment and a thermal imaging camera to pinpoint the failure, our access cuts average 4 square feet instead of the 20-plus square feet some companies open. That saves you hundreds on flooring repair and gets you back to normal faster.
- 24/7 Emergency Response — Water does not stop at 5 p.m. If you have an active leak flooding your foundation, call 657-354-1087 any hour. We offer 24/7 under-slab plumbing repair Fullerton CA response and can shut down the line to stop damage before we schedule the permanent fix.
- Warrantied Workmanship — Every under-slab pipe repair services Fullerton California job we complete carries a workmanship warranty on the new pipe section and fittings. If the repair fails, we come back and make it right. We use Uponor PEX and NIBCO copper because they hold up underground.
The service timeline
Our Under-Slab Pipe Repair Process
Phone Triage
When you call 657-354-1087, we ask three questions: where is the water meter spinning, is the floor warm, and how much has the bill jumped. That tells us whether you likely have a hot water line leak or cold water line leak. We schedule a same-day or next-morning visit and tell you what to shut off in the meantime.
Leak Detection
Our technician arrives with acoustic leak detection equipment, a thermal imaging camera, and a moisture meter. We pressurize the system, listen for the escape point, and scan the slab for temperature differences. Within 45 to 90 minutes we mark the exact location on your floor with tape and show you the evidence.
Access and Repair
We cut a precise opening in the concrete, typically 2 feet by 2 feet, and excavate down to the failed pipe. If the damage is isolated, we replace that section with PEX tubing or copper pipe and new fittings. If the line is corroded throughout, we recommend rerouting the line through the attic or walls instead.
Pressure Test
Before we patch anything, we pressure-test the repaired line to 100 PSI for a minimum of 30 minutes. If the gauge holds steady, the repair is sound. If it drops, we find the second leak now, not after your floor is back down. You see the gauge reading yourself.
Patch and Cleanup
We fill the access opening with concrete patch, level it to your existing slab, and clean the work area. Most jobs are complete in one day. We leave you with a written summary of the repair, the test results, and a workmanship warranty on the new pipe section.
Tools and methods01 02 03 04 05 06 07 08 09 10
Tools and Methods We Use for Slab Pipe Repair
Acoustic Leak Detection Equipment
We pressurize the line and listen for the sound of water escaping through the pipe wall or joint. This pinpoints the leak within inches before we cut any concrete.
Thermal Imaging Camera
Hot water line leaks leave a heat signature on the slab surface. We scan the floor and map the temperature difference to locate the failure point, especially useful in kitchens and bathrooms.
Video Pipe Inspection Camera
We feed a camera into the line to see corrosion, joint failure, and pipe material from the inside. This tells us whether a spot repair will hold or whether rerouting is the better option.
Pressure Testing Gauge
We pressurize the repaired line to 100 PSI and hold it for at least 30 minutes. If the gauge holds steady, the repair is sound. If it drops, we find the second leak before patching.
Electronic Leak Detection Wand
We use this handheld tool to confirm the leak location after acoustic detection. It picks up the vibration of escaping water through the slab and helps us mark the exact cut point.
RIDGID and Milwaukee Diagnostic Tools
Our technicians carry RIDGID and Milwaukee inspection and cutting equipment on every truck. These brands hold up to daily use and give us reliable readings on every job.
IAPMO Uniform Plumbing Code Compliance
Every repair we make follows the IAPMO Uniform Plumbing Code, which governs pipe materials, joint methods, and pressure testing standards in California. We pull permits when required and leave documentation of the repair for your records.
Trenchless Repair Equipment
When the pipe is accessible from a single entry point, we use trenchless repair equipment to replace or line the failing section without digging a trench across your yard or floor. This saves concrete, landscaping, and time.
Epoxy Pipe Liner for Isolated Damage
For small isolated failures in otherwise sound pipe, we can apply an epoxy pipe liner that seals the leak from the inside. This is a lower-cost option when the surrounding pipe is still in good condition and pressure-tests clean.
Concrete Patch and Leveling
After the pipe is repaired and tested, we fill the access opening with concrete patch and level it to your existing slab. The patch is clean enough that most flooring goes back down the same week without additional prep work.
Where this service helps
When Fullerton Homeowners Call Us for Slab Pipe Repair
A 1950s home near Craig Park with original copper pipe starts showing warm spots on the hallway floor.
We locate the hot water line leak with thermal imaging, cut a 2-foot access square, and replace the corroded copper section with new copper and NIBCO fittings. Pressure-test to 100 PSI, then patch the slab. Hot water restored the same day. Water bill drops back to normal within one billing cycle. Flooring goes back down within a week.
A 1980s tract home in Coyote Hills has a water bill that jumped $160 and the meter spins with everything off.
We pressure-test the system, isolate the cold water line, and use acoustic leak detection to find the failure point under the master bedroom. We repair the pipe and verify with a 30-minute pressure test. Leak stopped in one day. No flooring damage beyond the access square. Customer avoids the $3,000 foundation repair another company quoted.
A rental property in Sunny Hills has had three slab leaks in four years, all on the same line.
Rather than patch a fourth time, we recommend water line rerouting. We run new PEX tubing through the attic, abandon the failing under-slab line, and restore full water pressure to all fixtures. No more slab leaks. The property manager saves thousands in repeated repairs and tenant complaints. Reroute pays for itself in two years.
A homeowner in Amerige Heights notices the sound of running water at 2 a.m. with every fixture shut off.
We respond to the 24/7 call, shut down the main to stop the flow, and return the next morning with full detection equipment. We find a pipe joint failure on the main supply line and repair it. Water damage contained to a small area. Repair completed the next day. Customer avoids a flooded foundation and emergency water extraction bill.
Local execution
How Under-Slab Pipe Repair Runs in Fullerton
Fullerton sits on a mix of old and new housing stock, and that shapes every under-slab pipe repair we do here. Homes built before 1960, especially around Craig Park and downtown, often have original copper or galvanized pipe that has corroded from the inside out. Homes built in the 1970s and 1980s in Coyote Hills and Sunny Hills used thin-wall copper that fails at the joints when the soil shifts. We also see slab leaks after heavy winter rains when the soil expands and puts pressure on buried lines. Our trucks carry acoustic leak detection equipment, thermal imaging cameras, and repair materials so we can start work the same day we arrive. If you need affordable under-slab pipe repair Fullerton California, call 657-354-1087 and we will confirm your appointment window. We serve ZIP codes 92831, 92832, 92833, 92834, 92835, and 92836.
Amerige Heights
Mostly 1990s and 2000s construction with PEX and copper supply lines. We see joint failures from soil movement more often than pipe corrosion here.
Sunny Hills
Mix of 1960s ranch homes and newer builds. Original copper lines in the older homes are reaching the end of their service life and failing at the joints.
Coyote Hills
1970s and 1980s tract homes with thin-wall copper. Hot water line leaks are common because the pipe walls thin faster on the hot side.
Raymond Hills
Older homes with mature landscaping. Tree roots sometimes find their way into drain lines, which we check whenever we open a slab for supply line repair.
Westbluff
Homes here sit on slightly sloped lots, which means water from a slab leak can travel before it surfaces. We use thermal imaging to trace the path.
Expansive clay soil that swells after winter rains
Soil movement puts stress on buried pipe joints and can cause pipe joint failure even in relatively new copper lines. We see a spike in slab leak calls from December through March.
Older housing stock with original copper or galvanized pipe
Pipe that has been underground for 50 or more years corrodes from the outside in. Spot repairs work for isolated failures, but whole-line rerouting is often the better long-term fix.
Hot Fullerton summers that raise water temperature in shallow lines
Hot water lines under slab run hotter in summer, which accelerates corrosion on the inside of copper pipe. We recommend PEX for replacements because it handles heat cycles better.
Slab-on-grade construction common across Fullerton
Most Fullerton homes have no crawlspace, so under-slab pipe is the only option for supply lines. That means any repair requires concrete access unless we reroute through the attic.
Before and after
What a successful service visit changes.
Hot Water Line Leak in Sunny Hills
Before
A homeowner in Sunny Hills noticed warm spots on the hallway floor and a water bill that jumped $130 in one month. A previous plumber quoted $5,800 to reroute the entire line through the attic.
After
We used thermal imaging to locate the leak within 18 inches of the actual failure. One 2-foot access cut, one copper section replaced, pressure-tested to 100 PSI. Total cost was $1,650. Water bill returned to normal the next cycle.
Maintenance: We recommended an annual pressure test on the remaining original copper line. Catching the next failure early keeps repair costs down and avoids emergency water damage.
Cold Water Line Leak in Coyote Hills
Before
A 1980s tract home in Coyote Hills had a water meter spinning with every fixture off. The homeowner could hear water running but could not find any visible leak. Two other companies could not locate it.
After
We used acoustic leak detection equipment and a video pipe inspection camera to find a pipe joint failure under the master bedroom. Repaired the joint, pressure-tested for 30 minutes, patched the slab. Done in one day for $1,400.
Maintenance: We advised the homeowner to watch for warm spots or a spinning meter as early warning signs. A $75 annual inspection catches joint failures before they become slab leaks.
Whole-Line Reroute in Amerige Heights
Before
A rental property in Amerige Heights had three slab leaks in four years, all on the same cold water line. The property manager was spending $1,200 to $2,000 per repair and losing tenants during each fix.
After
We rerouted the entire line through the attic using Uponor PEX tubing. Abandoned the failing under-slab pipe, restored full water pressure to all fixtures. Total cost was $4,200, and no leaks since.
Maintenance: PEX tubing in the attic is accessible for inspection, so future problems can be fixed without opening concrete. The reroute paid for itself in two years compared to repeated spot repairs.
Problems we solve
Under-Slab Pipe Problems We Solve in Fullerton
Most under-slab pipe failures show up as one of these four problems. If any of them sound familiar, call us at 657-354-1087 before the damage gets worse.
Water bill spiking $80 to $200 a month with no visible leak
You are paying for water that is soaking into the soil under your foundation. Left alone, that water erodes the soil, causes foundation moisture, and can lead to concrete slab cracking and costly structural repairs. We use acoustic leak detection equipment and a pressure testing gauge to confirm the leak and isolate which line is failing. Once located, we repair the pipe and verify with a pressure test. Most customers see their water bill return to normal the next billing cycle.
Warm spots on the floor that never go away
A warm floor usually means a hot water line leak under the slab. The heat is coming from escaping hot water. Ignoring it wastes gas, raises your utility bill, and eventually saturates the soil enough to crack the slab. We scan the floor with a thermal imaging camera to map the hot water line and find the failure point. Then we cut a small access opening, replace the damaged copper or PEX section, and pressure-test before patching. One-day repair in most cases.
Sound of running water when every fixture is off
That sound is water escaping under pressure. It could be a cold water line leak or a drain line failure. Either way, the water is going somewhere, and that somewhere is under your foundation. We use an electronic leak detection wand and video pipe inspection camera to trace the sound to its source. Once we know whether it is supply or drain, we repair the line and test it. We also check for pipe joint failure nearby since corrosion often spreads.
Repeated slab leaks in the same area of the house
If you have had two or more leaks in the same line, the pipe is failing systematically, not randomly. Spot repairs will keep costing you money until the whole line is replaced or rerouted. We recommend water line rerouting through the attic or walls. We abandon the failing under-slab line, run new Uponor PEX tubing overhead, and restore water pressure. It costs more upfront than a spot repair but ends the cycle of leaks permanently.
Proof behind the promise
Licensed, Insured, and Proven in Fullerton
Technical expertise
Slab Leak Expertise You Can Verify
Slab Leak Pros has been repairing under-slab plumbing in Fullerton since 2016, which means we have seen every pipe failure this city can produce. Our technicians hold California Contractor License (C-36 Plumbing) credentials and train on RIDGID and Milwaukee diagnostic tools. We follow IAPMO Uniform Plumbing Code on every repair and carry OSHA safety certification for confined-space and concrete-cutting work. When you hire us, you get a crew that has opened hundreds of Fullerton slabs and knows exactly what is underneath.
- 10 years repairing under-slab pipe in Fullerton and Orange County
- California Contractor License (C-36 Plumbing) on every job
- Trained on RIDGID, Milwaukee, and Fluke diagnostic equipment
- IAPMO Uniform Plumbing Code compliance on all repairs
- OSHA safety certification for concrete cutting and confined spaces
How much does under-slab pipe repair cost in Fullerton CA?
Most under-slab pipe repairs in Fullerton run $1,200 to $4,500 in 2026, depending on how deep the pipe sits, how much concrete we cut, and whether we repair or reroute the line. Simple spot repairs on an accessible copper line land near the low end. Whole-line rerouting through the attic pushes toward the high end. We give you a flat price before we start.
How long does under-slab pipe repair take in Fullerton?
A standard spot repair takes one day, usually 6 to 8 hours from leak detection to final pressure test. If we need to reroute the line because the pipe is corroded throughout, plan on two to three days. We pressure-test for 30 minutes before patching, so the repair is verified before we leave your home.
Who does under-slab plumbing repair near me in Fullerton?
Slab Leak Pros handles under-slab plumbing repair across Fullerton and Orange County. We are licensed, insured, and have been working local slabs since 2016. Call 657-354-1087 and we will schedule a same-day or next-morning visit. We serve Amerige Heights, Sunny Hills, Coyote Hills, and every ZIP from 92831 to 92836.
Does under-slab pipe repair require breaking concrete in Fullerton?
Yes, most under-slab repairs require cutting a small access opening in the concrete, typically 2 feet by 2 feet. We use acoustic leak detection and thermal imaging to pinpoint the exact spot, so the cut is as small as possible. Some jobs can be rerouted through the attic instead, which avoids concrete work entirely. We tell you which option fits your situation.
Frequently asked questions
Frequently Asked Questions About Under-Slab Pipe Repair in Fullerton
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Ask the local teamRelated services
Related Plumbing Services in Fullerton
Emergency Slab Leak Repair
When water is actively pooling on your floor, emergency slab leak repair stops the damage fast. We shut down the leaking line, isolate the failure, and schedule the permanent under-slab fix. Available 24/7 for Fullerton homeowners.
View service
Slab Leak Rerouting
If your under-slab pipe is corroded from end to end, rerouting is often cheaper than multiple spot repairs. We run new PEX tubing through the attic or walls, abandon the failing line, and restore water pressure without opening more concrete.
View serviceHot Water Line Leak Repair
Warm floors and a spinning water meter usually mean a hot water line leak under the slab. We locate it with thermal imaging, repair or reroute the line, and verify the fix with a pressure test before patching.
View serviceCold Water Line Leak Repair
Cold water line leaks are harder to spot because there is no heat signature. We use acoustic leak detection equipment and a moisture meter to find them, then repair the pipe and restore your water pressure.
View serviceContact the local team
Contact Slab Leak Pros
Call us at 657-354-1087 or email info@slableakpros.com. We answer the phone 24/7 for emergency slab leak calls in Fullerton. For non-emergency work, we schedule same-day or next-day appointments. You will get a written price before we start.