Trust the Local Team
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Licensed ProfessionalsLicensed by the Texas State Board of Plumbing Examiners, we maintain high standards on every job.
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24/7 Plumbing ServiceDay or night, our team is available to handle residential and commercial plumbing emergencies.
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No Guesswork RepairsOur background in new construction helps us accurately identify plumbing issues and provide the right solution.
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Family-Owned Since 1984With decades of experience, Merritt Plumbing brings trusted, local service backed by a long-standing commitment to quality.
Hear From Our Happy Customers
At Merritt Plumbing, your satisfaction is our priority! See for yourself what our customers have to say about working with us.
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"They also do a great job and are always friendly."
I never have a problem scheduling service and they come out quickly.
- James B. -
"Can't say enough good about this company."
Merritt Plumbing always comes out very quickly and does great work.
- Robert A. -
"Would highly recommend to anyone with plumbing needs."
Very knowledgeable and willing to answer all of my questions.
- Graham N. -
"Paul at Merritt Plumbing was great."
He was on time and assessed/performed the work in a professional manner.
- Parker L. -
"I HIGHLY recommend Merritt Plumbing!"
What a blessing to listen to their happy chatter - they loved their job and did it proudly!
- Cindi R. -
"George and his partner were very polite and helpful."
Total time about two hours.
- Debra C. -
"Thanks for taking care of business!"
Bill is professional, knowledgeable, and responded immediately to requests while navigating a very crowded event
- Tracie A. -
"Super knowledgeable and honest!"
I called Merritt Plumbing, and they came out the same day to take care of my issue.
- Madeline T.
Pinpointing Slab Leaks Without Demolition
Exploratory jackhammering destroys custom flooring, inflates restoration costs, and frequently misses the actual break location.
Our technicians pinpoint sub-slab anomalies electronically using non-invasive diagnostic technology, including:
- Acoustic sonar equipment that listens for high-pressure water loss beneath concrete footings and subfloors.
- FLIR thermal imaging that maps the exact heat signatures of hot water plumes traveling under your slab.
- Helium-tracer gas that surfaces micro-fractures in buried piping too small to isolate by sound alone.
This level of precision protects your high-value finishes. Tracing a hot line beneath luxury tile or hardwood identifies the exact point of failure without lifting a single tile during the inspection phase, keeping your eventual repair localized to one small, deliberate opening.
Sub-Slab Plumbing Repairs in Greater San Antonio
Once we pinpoint the exact break, your property's architectural layout and overall pipe condition determine the most effective path forward. We present every viable engineering solution alongside its practical trade-offs, recommending targeted repair methods such as: direct-access spot repairs through a small opening in the slab, above-slab PEX rerouting through wall cavities and attic spaces to bypass failed underground lines without touching finished floors, or comprehensive whole-home repiping to replace aging copper and galvanized supply.
Every repair begins and ends with electronic pressure isolation testing to confirm absolute line integrity.
To determine the most cost-effective and least intrusive solution, our technicians evaluate key structural conditions, including:
- Pipe age and failure history. A 12-year-old system with an isolated break rarely needs a full repipe. In contrast, a slab facing its third leak in five years warrants a complete overhead conversion.
- Restoration and disruption impact. We weigh the need to preserve high-value flooring against the need for wall cavity access to minimize repair downtime and protect your finishes.
- Long-term system reliability. We assess the overall condition of the line to confirm the chosen fix prevents recurring sub-slab failures.
We can explain these trade-offs plainly and provide personalized recommendations based on your property, not on what is easiest or most profitable for our team.
Why Texas Hill Country Soil & Clay Cause Slab Leaks
South-Central Texas weather swings rapidly between severe drought and torrential rain. Highly expansive clay swells aggressively against concrete footings and shrinks away during dry spells, while underlying limestone karst creates uneven ground support. As foundations heave and settle through these soil-movement cycles, under-slab copper lines experience intense shear stress at every joint, bend, and fitting.
Resolving soil-driven pipe failures requires a contractor equipped for both delicate electronic diagnostics and heavy ground excavation. Merritt Plumbing manages complex foundation repairs completely in-house, deploying specialized capabilities including under-slab mechanical tunneling to replace fractured pipe runs without disturbing interior custom flooring, professional concrete compaction and slab restoration to rebuild foundation stability, and direct machine excavation to maintain strict project timelines from start to finish.
We can help you protect your home's foundation. Call (830) 251-5391 or contact us online for a free estimate for slab detection and repair in Boerne, TX.