Leak Detection and Mapping
We use acoustic listening devices, thermal imaging cameras, and moisture meters to locate the leak and map the damage. This step ensures we cut the smallest possible area and replace only the failed pipe.
Licensed plumbers for below slab pipe replacement in Woburn, Massachusetts.
Under Slab Pipe Replacement Woburn MA Done Right the First Time
Under Slab Pipe Replacement Woburn MA is the permanent fix when a slab leak keeps coming back. We cut the concrete, replace the failed copper or PVC line with PEX or copper, and pressure-test before we patch. If you are dealing with a high water bill, warm floor spots, or a cracked slab in Woburn, our licensed team handles the whole job. We offer below slab pipe replacement in Woburn, Massachusetts with same-day emergency response and upfront pricing.
Careful work. Honest options.
About this service
What Under Slab Pipe Replacement Woburn MA Involves
Under Slab Pipe Replacement Woburn MA is the process of removing a failed water or drain line buried beneath your concrete foundation and installing a new pipe in its place. We start with acoustic listening devices and thermal imaging cameras to pinpoint the leak, then use concrete cutting saws to open a precise channel. The old copper or PVC pipe comes out, and we install new PEX tubing or copper pipes with SharkBite or NIBCO fittings. After backfilling and patching with concrete patch mix, we pressure-test the line to confirm zero leaks.
Homeowners across Middlesex County call us when a slab leak has already caused foundation water damage or a spike in their water bill. Woburn's older housing stock, especially around Woburn Center and Mishawum, often has original copper pipes that have corroded after decades under the slab. If you search for under slab pipe replacement in Woburn MA near me, we are the local company that handles the concrete work, the plumbing, and the final testing under one license. We also offer below slab pipe replacement Woburn MA 24/7 for burst lines and emergency shutoffs.
- ✓ Stop the Water Bill Spike
- ✓ Protect Your Foundation
- ✓ One Licensed Crew, Whole Job
- ✓ Same-Day Emergency Response
What's included
What Is Included in Under Slab Pipe Replacement
Every under slab pipe replacement job includes detection, cutting, pipe replacement, backfill, concrete patch, and final testing. Here is what you get when you hire us for below slab pipe replacement in Woburn, Massachusetts.
Concrete Cutting and Removal
Our crew uses concrete cutting saws with dust control to open a channel over the pipe. We remove the concrete and haul it away. The cut is typically 12 to 18 inches wide and as long as the failed section.
New Pipe Installation
We install new PEX tubing or copper pipes with SharkBite or NIBCO fittings. The new line is pressure-tested at 80 to 100 PSI before we backfill. We use materials that meet Massachusetts plumbing code.
Backfill and Concrete Patch
We backfill with clean sand or gravel and pour concrete patch mix to restore the slab. The patch cures for 24 to 48 hours. It is structural and blends with your existing floor.
Final Testing and Report
We run a post-repair leak test with pressure gauges and a moisture meter. You get a written report with before-and-after readings, plus photos for your records or insurance claim.
Cleanup and Debris Removal
We protect your floors and furniture during the job, then clean up all debris, including old pipe and concrete chunks. You are left with a dry, patched slab and a working water line.
How it works
Our Under Slab Pipe Replacement Process
We start with acoustic listening devices and electronic leak detection wands to hear the leak through the concrete. A thermal imaging camera confirms the temperature difference from warm floor spots. This step takes 45 to 90 minutes and tells us exactly where to cut, so we open the smallest possible area.
Using concrete cutting saws with dust control, we open a channel over the failed pipe. We keep the cut tight, usually 12 to 18 inches wide, to limit the patch size. You will hear the saw for about an hour. We protect nearby floors and furniture with plastic sheeting before we start.
We remove the corroded copper or PVC and install new PEX tubing or copper pipes. Fittings are SharkBite or NIBCO, and we pressure-test the new line at 80 to 100 PSI before backfilling. Most residential replacements take three to six hours from cut to test.
We backfill with clean sand or gravel, then pour concrete patch mix to match the existing slab. The patch cures for 24 to 48 hours before you walk on it. We leave the area clean and haul away all debris, including the old pipe and concrete chunks.
Before we call the job done, we run a post-repair leak test with pressure testing gauges and a moisture meter. We also do a video pipe inspection camera check on drain lines if needed. You get a written report with before-and-after pressure readings for your records or insurance claim.
STEP 01Leak Detection
We start with acoustic listening devices and electronic leak detection wands to hear the leak through the concrete. A thermal imaging camera confirms the temperature difference from warm floor spots. This step takes 45 to 90 minutes and tells us exactly where to cut, so we open the smallest possible area.
Tools & methods
Tools and Methods We Use
Acoustic Listening Devices
Amplify the sound of pressurized water escaping a pipe so we can pinpoint the leak within inches before we cut.
Thermal Imaging Cameras (Fluke)
Show warm floor spots caused by hot water line leaks. We use Fluke cameras to map the leak and confirm the repair area.
Electronic Leak Detection Wands
Pick up the electrical signal of water under concrete. These wands confirm the leak location and help us avoid unnecessary cutting.
Concrete Cutting Saws (Milwaukee, RIDGID)
Open a precise channel in the slab with dust control. Clean cuts mean a smaller patch and faster cure.
Video Pipe Inspection Cameras (General Pipe Cleaners)
Inspect drain and sewer lines after replacement to confirm the pipe is clear and the joints are tight.
Pressure Testing Gauges
Test new and existing lines at 80 to 100 PSI. Every under slab pipe replacement ends with a written pressure test report.
Real results
Before and after.
Under Slab Pipe Replacement
High Water Bill in Woburn Center
A family of four saw their water bill jump from $80 to $220 a month. No visible leak. The slab was dry but the meter kept spinning. We used acoustic listening devices to find a pinhole leak in a copper line under the living room floor.
After: We cut an 18-inch channel, replaced 12 feet of copper with PEX tubing, and pressure-tested at 90 PSI. The patch cured in 48 hours. Their next water bill was $78, and the floor looks original.
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Under Slab Pipe Replacement
Cracked Slab from Hot Water Leak
A homeowner in Woburn Highlands noticed warm spots on the kitchen floor and a crack running along the slab. A thermal imaging camera confirmed a hot water line leak. The concrete was stained and starting to spall.
After: We replaced 8 feet of copper pipe with new copper, backfilled with gravel, and poured a concrete patch mix. The floor temperature evened out within a day. The crack stopped spreading, and the patch blends with the existing slab.
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Under Slab Pipe Replacement
Sewer Backup in Downtown Woburn
A commercial building had repeated drain backups and a sewer smell in the basement. A video pipe inspection camera showed a cracked PVC sewer line under the slab. The tenant was losing business.
After: We worked after hours to replace 20 feet of PVC with new PVC and NIBCO fittings. We patched the concrete and tested the line with a camera. Backups stopped immediately, and the tenant reopened the next morning.
Book this service → Problems we solve
Problems Under Slab Pipe Replacement Solves
Under-slab pipes fail in predictable ways. These are the problems we fix every week for Woburn homeowners, and what happens if you ignore them.
Ask a pro →High water bill with no visible leak
We locate the leak with acoustic listening devices, replace the failed section with PEX or copper, and pressure-test the new line. Your water bill returns to normal within one billing cycle.
Warm floor spots and cracked slab
We use thermal imaging cameras to map the leak, cut a small channel, and replace the pipe. After patching, the floor returns to normal temperature and the crack stops spreading.
Sewer line leak causing backups and odors
We replace the failed sewer line section, restore the concrete, and test the new line with a video pipe inspection camera. Backups and odors stop immediately.
Recurring pinhole leaks in old copper pipes
We replace the entire under-slab run with PEX tubing or new copper. One job, one warranty, and no more emergency calls for the same line.
Transparent pricing
Under Slab Pipe Replacement Pricing
$3,500 - $8,000 depending on scope
Typical 2026 pricing for under slab pipe replacement in Woburn ranges from $3,500 to $8,000 for residential jobs. A single pinhole leak on a straight run is on the low end. A full sewer line replacement under a finished basement is on the high end. The price includes detection, concrete cutting, pipe replacement, backfill, concrete patch, and final testing. We provide a written price before we cut. If you need affordable below slab pipe replacement near South Woburn MA, ask about our scheduled-service discount.
A permanent under slab pipe replacement stops the water loss, protects your foundation, and ends the cycle of emergency patches. Most Woburn homeowners recoup the cost within two years through lower water bills and avoided foundation repairs.
•affects cost
Longer runs and deeper pipes require more cutting and more material. A 10-foot replacement costs less than a 30-foot replacement. Depth also affects how much concrete we remove.
Get a quote ↗•affects cost
PEX tubing is less expensive than copper. Copper lasts longer but costs more in material and labor. We quote both options so you can choose based on budget and lifespan.
Get a quote ↗•affects cost
Thicker slabs take longer to cut. Finished floors, like tile or hardwood, require extra protection and sometimes a flooring specialist to restore after the patch.
Get a quote ↗•affects cost
Furniture, appliances, and finished basements slow us down. We move what we can, but heavy items may need to be relocated before we start.
Get a quote ↗ Proof you can check
Licensed, Insured, and Reviewed
- Massachusetts Plumbing License · Massachusetts Board of State Examiners of Plumbers and Gasfitters
- OSHA Safety Certification · Occupational Safety and Health Administration
- IAPMO Certification · International Association of Plumbing and Mechanical Officials
- Backflow Prevention Certification · Massachusetts Department of Environmental Protection
Customer reviews
What Woburn Homeowners Say
★★★★★
“We had a slab leak that drove our water bill up by $200 a month. Slab Leak Experts found it with a thermal camera in under an hour. They cut a small section, replaced the copper with PEX, and patched the floor the next day. The water bill is back to normal and you can barely see the patch.”
MR
Mike R.Homeowner, Woburn Center
✓ Verified“
★★★★★
“Our 1950s ranch had original copper pipes under the slab. Two pinhole leaks in one year. We decided to replace the whole run. The crew was licensed and professional, and they pressure-tested everything before they left. They also gave us documentation for our insurance claim.”
LT
Lisa T.Homeowner, Woburn Highlands
✓ Verified★★★★★
“A sewer line leak under our commercial building was causing backups. Slab Leak Experts worked after hours so our tenants were not disrupted. They replaced the pipe, patched the concrete, and tested it. The price was fair and they stuck to the quote.”
DM
Dave M.Property Manager, Downtown Woburn
✓ VerifiedMost residential under slab pipe replacements in Woburn cost between $3,500 and $8,000 in 2026, depending on pipe length, depth, and whether we need to reroute. A single pinhole leak on a straight run is on the low end. A full sewer line replacement under a finished basement is on the high end. We provide a written price after detection, before any cutting.
A typical below slab pipe replacement in Woburn, Massachusetts takes one to two days from cut to final test. Day one is detection, cutting, and pipe installation. Day two is backfill, concrete patch, and pressure testing. The patch needs 24 to 48 hours to cure before you walk on it, but your water is back on the same day we install the new line.
Yes, we cut a channel in the concrete to reach the failed pipe. We use concrete cutting saws with dust control and keep the cut as small as possible, usually 12 to 18 inches wide. After replacing the pipe, we backfill and pour a concrete patch mix that matches your existing slab. The patch is structural and blends with the surrounding floor.
Slab Leak Experts offers under slab pipe replacement near you in Woburn MA. We are licensed, insured, and have been serving Middlesex County since 2014. Call 781-452-3771 for same-day service or 24/7 emergency response. We cover Woburn Center, Downtown Woburn, North Woburn, and all surrounding neighborhoods.
Ready when you are
Get Under Slab Pipe Replacement Woburn MA Today
We are licensed, insured, and have been fixing under-slab pipes in Woburn since 2014. Call 781-452-3771 for same-day service or 24/7 emergency response. We provide upfront pricing and a written report after every job.
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Request an appointment
Contact Slab Leak Experts
Call 781-452-3771 any time, day or night, and a real person picks up. For non-emergency work we schedule same-day or next-morning visits across Woburn and the surrounding towns. Tell us what you are seeing and hearing, and we will tell you what it likely is before we roll a truck.
Call anytime7814523771Email the officeinfo@slableakrepairwoburnma.com
Office hoursOpen 24 hours · 7 days a week