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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.

Spring Service Special

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On Plumbing or Electrical Repairs over $350!
Offer Must Be Presented at Time of Sale. Valid for Plumbing or Electrical Repairs quoted by Landry for $350 or More. Cannot Be Combined With Other Offers. Some Exclusions Apply. Offer . Call Office For Details. Expires: Apr 30, 2026

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Hear From Our Satisfied Customers

Knowledge technicians that gave me options on what to do to repair my water pressure. They fixed the problem and my water pressure is now flowing properly.
Don Asquith
4 days ago
Drew/Andrew came to our home to do the regular check-up of our mini-splits. We found him to be very knowledgeable about such systems. He did a fine job of inspecting, cleaning, and lubricating them, and he also gave us a lot of good information about both the condition of another much older one we have on our property and what our options could be in dealing with it if it eventually fails. And he came to our house a second day, to complete a good inspection of that mini-split. In addition to being very knowledgeable, we found Drew to be very considerate and easy to talk with. And we give a lot of credit to Landry Mechanical's service program. Another 5 star rating from us for Landry service.
Doug Showalter
4 days ago
Landry’s did an awesome job installing our new A/C unit! Scott and Damien were extremely professional and friendly!! They did a great job explaining the process as they installed our unit! We are extremely happy with their work and highly recommend Landry’s!!
Gary Perras
5 days ago
Excellent service. Knowledgeable. Offered tips for optimizing the function of the system. I would highly recommend
Rich Perugini
5 days ago
Serviceman was very professional and friendly. Did not push me into needless repairs.
Shirley Marcucci
7 days ago
Landry’s did an awesome job installing our new A/C unit! Scott and Damien were extremely professional and friendly!! They did a great job explaining the process as they installed our unit! We are extremely happy with their work and highly recommend Landry’s!!
Gary Perras
7 days ago
Great installation on time and quality work! They replaced my oil heat system with a propane heating system.
Joseph Holewa
1 week ago
Matt Stagliola and Patrick OToole both provided excellent services. They communicated well and were timely. They also patiently responded to my concerns. I would highly recommend them both.
Deborah Martin
1 week ago
Great with communication and specifics. Kept me informed every step of the way and made an honest effort to keep the repairs simple and the cost down, while also offering multiple alternatives and additions if necessary. Nick was a pleasure. Would highly recommend.
The Ink Tank
1 week ago
PpGood service by Rosalee Came on time. Did good work. Pleasant. Competent. Thank. Steve Ayres
Steven Ayres
1 week ago
Jack and Hunter are very professional and polite. They did exceptional work. Very happy with the quality of work. If anyone is looking for a great plumber I recommend them .
Robert Amlaw
1 week ago
Excellent service. Will be using them again.
D M
2 weeks ago
Installation of new whole house heat pump and mini split system
Lynn Skladzien
2 weeks ago
Excellent service and technicians. Accurate quote and excellent work. A very good experience will be using them again.
Taze Barlar
2 weeks ago
Samyson was an absolute superstar - after being without hot water for a few days, he swooped in to save the day (and wouldn't quit when faced with a bit of rust/bolts that refused to budge!) Highly recommended and our dogs loved that he would throw a ball for them anytime he had to go back to his van
Chris Took
2 weeks ago
I recently had some electrical work done, as well as all of the smoke detectors. Everything went well, then a few weeks later they started going off on the second floor. I called and they sent someone right away. It was a defective alarm. Thank you Landry for sending someone right away.
Lyn-Del Wistaris
2 weeks ago
5 stars to Landry Mechanical. The scheduler got me setup for service next day. I received a text message confirming I was on the schedule the morning of service. Then they sent me photos of the electricians with verified background checks that would be servicing my exhaust fan issue. Mike Dowd and Nick Chappelle were FANTASTIC and resolved my electrical issue and set me up with a new Panasonic bathroom exhaust fan which is much quieter and brighter. Mike and Nick were timely, professional, friendly and very helpful in resolving my problem and answering my questions. Great experience with Landry - thank you!
JOSIE LEE
2 weeks ago
I'm a new customer of Landry Mechanical and I have my first appointment for service in early January. I am looking forward to establishing a relationship with the company to provide peace of mind through the heating season by knowing Landry will help make my heating system run at peak efficiency.
Paul Popinchalk
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.