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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

Save $100

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

Excellent service and technicians. Accurate quote and excellent work. A very good experience will be using them again.
Taze Barlar
2 days 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
3 days 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
3 days 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
3 days 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
3 days ago
Great service. My furnace wasn't working, and they sent a technician to get it checked right away. They repaired it in less than 2 hours.
Juan Carlos Rodriguez
3 days ago
Had an issue with our water heater on Easter. The tech, Jose, arrived in a timely manner and was professional and courteous, and the issue was resolved quickly and we were provided with various estimates and options for moving forward with dealing with the old water heater. Would definitely recommend.
Kevin Taylor
3 days ago
I had an issue with my mini-split system not blowing hot air, so I contacted Landry Mechanical. They responded very quickly, and Samy, the technician, arrived promptly. He diagnosed the issue right away and was able to fix it in a timely manner. Thank you to Zane ,Natasha and Samy for your quick response and excellent service. Samy is truly a professional technician.
Ibrahim Badr
6 days ago
Nick did a great job, very thorough and excellent quality work.
Gerry S
6 days ago
I had an emergency with my shower pipe coming from behind the wall which corroded at the fittings and it blew the shower head off the wall spewing water everywhere. I turned water off and called Landry. They came immediately the next day and told me via text on arrival time. The technician was absolutely pleasant to talk to and his service was perfection 🥰 I will be calling again for upstairs apartment as soon as possible.
Bonnie Kiernan
1 week ago
Very professional Did a great job
Ralph Amato
1 week ago
Was able to get a same-day appointment. Communication was great. Mike was friendly and super helpful diagnosing and resolving our electrical issue. It was such a relief to have the problem fixed quickly.
Ryan Richard-Scro
1 week ago
Installed a preasure reducing valve and replaced and outdoor faucet
Thomas Chamberland
1 week ago
Jorge was very professional and knowledgeable. We were so happy that he was able to resolve our water issue. Jorge is a great asset to you guys at Landry, we'll be calling you for all our plumbing needs
Kevin Zukowsky
2 weeks ago
Always professional and responsive.
Beth Tufo
2 weeks ago
Mike Houghton and his associate did a great job installing a new faucet, that doesn't leak... I recommend Landry Mechanical for plumbing, heating and electrical work. Very professional and extremely polite. Goes a long way in my book. Trish Flagg
Trisha Christian
2 weeks ago
Nick helped us to fixed the problem. He was very polite and worked efficiently. The job was done very well .
David Han
2 weeks ago
Technicians Randy Kyle and Richard Kyle were amazing. They were very knowledgeable and very professional. They explained every aspect of the service they provided. I felt very confident the job was done well. I did feel the cost was high but the customer service and respectful concerns from the technicians were a great asset to my decision to have the job completed.
Deb Carpe
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.