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Plumbing, Heating, Cooling & Electrical Experts

Slab Leak Repair

A slab leak is a break in a water line beneath a concrete foundation. Because the pipe is buried under the home, damage can continue for weeks before it becomes obvious. Over time, water that escapes can erode soil, crack flooring, and increase utility costs.

Landry Mechanical Inc., Plumbing, HVAC & Electric provides professional slab leak repair using precise detection methods and controlled repair techniques. Our goal is simple: find the leak quickly, fix it correctly, and protect your home’s structure.

If you suspect a hidden leak, schedule a repair visit online or call our team for an inspection.

Floor pulled up to inspect foundation and repair slab leak.

Signs of a Leak Beneath the Foundation

Pipes under a slab rarely fail without warning. Small changes inside the home often point to a larger issue below the surface.

Changes in Water Pressure or Warm Floor Areas

A sudden drop in pressure throughout the house can signal a damaged main line. If a hot-water pipe is compromised, certain sections of the flooring may feel unusually warm.

Sound of Running Water

Hearing water movement when fixtures are off is a strong indicator of a sub-surface break. A faint hissing or steady flow noise may travel through the floor.

Cracks or Persistent Dampness

Moisture along floor seams, baseboards, or walls can indicate water migrating upward. In advanced cases, foundation cracks or lifted flooring may develop as soil beneath the slab shifts.

Our Slab Leak Repair Process

Repairing a pipe beneath concrete requires planning and accuracy. We focus on locating the exact failure point and resolving it with minimal disruption.

Leak Detection

We use acoustic listening equipment and thermal imaging to locate hidden leaks without unnecessary demolition. Once identified, we outline the repair options clearly before any work begins.

Direct Pipe Repair

If the damaged section is isolated, we access the area, remove the compromised pipe, and install durable replacement materials designed for underground use. The system is then pressure-tested to confirm the issue is resolved.

Pipe Rerouting

If multiple sections show wear or corrosion, rerouting may be the better long-term solution. A new line is installed along a safer, more accessible path, reducing the risk of future slab access.

After repairs, we can evaluate visible plumbing components to ensure the system is operating properly as a whole.

Need fast help with plumbing, heating, AC, or electrical? Call or schedule service today!

Why Homeowners Choose Landry Mechanical

Hidden leaks require experience and careful execution. Our team approaches each repair with clear communication and practical solutions.

  • Accurate Detection: We focus on pinpointing the exact break before opening the slab.
  • Lasting Repairs: Materials and methods are selected for durability in underground conditions.
  • Respect for the Property: Work areas are contained and cleaned thoroughly.
  • Straightforward Communication: You’ll understand the problem and the solution before work begins.

Our work is centered on protecting the foundation and restoring confidence in your plumbing system.

Restore Your Foundation

A leak beneath the slab will not resolve on its own. If you suspect a problem, call today to schedule slab leak repair and protect your home’s stability.

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Disclaimer: Offer Must Be Presented At Time Of Sale. Offer Valid for $25 OFF Tank-Type Water Heater Flushes or $50 OFF Tankless Water Heater Flushes ONLY. Cannot be combined with other offers. Some Exclusions Apply. Offer Valid May 1st, 2026-June 30th, 2026 Expires: June 30, 2026

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Hear From Our Satisfied Customers

Fast, courteous, great service. Thank you
David Wojcik
3 days ago
I was very pleased with everyone involved in the project. Garrett was especially helpful, thorough and pleasant. Landry is lucky to have him as an employee.
Lois Benotti
3 days ago
Clean, respectful, responsive, polite and knowledgeable. Now a days these qualities are scarce and not to be taken lightly because the competition costs as much (or more) and they will trash your house and talk to you down when you ask for a description of the problem… I only say this because it was part of my personal experience with a different company and it was very discouraging.
Yahenys Dominguez
4 days ago
Your guys were very professional and explained everything in detail. Snaking a drain can be very messy but they keep everything clean and organized.
Sheila Gravelle
4 days ago
Responded in one day (without being subscription member). Kyle reported on time and was polite, professional, and courteous. We are now subscribed customers.
Richard Dumas
5 days ago
It was a very pleasant experience ! The technicians were very knowledgeable and fair ! Thank u
Linda Shack
5 days ago
Eddy Russell is an OUTSTANDING technician and I was lucky enough to have him come to my home today. So glad I switched to Landry 4 years ago.!
MARY PARKIN
5 days ago
Amazing team. From on the office, scheduling to their field staff. The tech that came out was and extremely joyful, smart, technicaly prepared. Rosie was a true joy to meet and efficient. Excellent experience!!
Eric Arthur
5 days ago
Kyle from Landry mechanical came out and was able to help me repair my system really quickly. He was super professional, super friendly, and explained everything clearly. They have become my chosen HVAC company moving forward!
Joe Toscano
5 days ago
Randy and Ricky were prompt, knowledgeable, professional and clean. Great service from this company.
Heidi Quinn
6 days ago
We recently completed a large AC job and couldn’t be happier with Landry’s service. From the sales team to the install team, everyone was great to work with. They were timely, communicative and affordable to work with. I highly recommend Landry for your HVAC needs.
Alyson Turner
7 days ago
Landry technicians replaced my HW heater and smoke detectors. Both Teams were excellent - extremely courteous, efficient and professional. I have had Landry do alot of work to my house (HVAC, electric, plumbing) and they always do a fantastic job!
Michael Casey
2 weeks ago
The service tech was very professional and did a great job explaining everything and servicing my furnaces.
Ron Poulin
2 weeks ago
Randy and Ricky were prompt, knowledgeable, professional and clean. Great service from this company.
Heidi Quinn
2 weeks ago
Nick was a pleasure to have performing the hot water heater replacement. All of the workers were very nice and made sure to describe and walk me through all of the things they did for the electrical and install. I would definitely recommend Landry for any hot water heater installations.
Andrew Favaro
2 weeks ago
JT, Garret, Julian, Don, Demeitri technicians for Landry Mechanical were outstanding, respectful, clean and very friendly. They put in mini splits in our house today, worked diligently and took the time to be very friendly with us. They are a respectable team that knows exactly what needs to be done. We are so happy with these guys who worked very hard and were so respectful even to our dog Rusty. I would highly recommend this team to do anything to my house. Very knowledgeable and efficient, but most of all so respectful and kind. Thank you team for a wonderful experience and service!!!!
Diane Woupio
2 weeks ago
Drew did a great job with maintenance service. Recommended two parts and waiting on others for this A/C season
Debbie F
2 weeks ago
Dennis and team were fantastic. Communication. Speed. Cleanliness you name it. Came in for a quote yesterday. Came back today and completed the job within hours and replaced my water tank amongst other upgrades. Super happy with the overall experience and in large part due to Dennis!
Gramos Saliu
2 weeks ago
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    When you need AC, heating, plumbing, or electrical repairs and replacements, call Landry Mechanical Inc Plumbing HVAC & Electric or book online for appointments in Millbury, MA, and throughout Worcester, Middlesex, and Norfolk Counties.