LEAK DETECTION & PIPE REPAIR IN ST. LOUIS, MO
We find the leak before we open anything up, keeping repairs smaller and costs lower. Family-owned and operated in St. Louis since 1984 with licensed, background-checked technicians.
Get Your Estimate
Tell us what you are seeing. We'll schedule a visit at a time that works for you.
WHY ST. LOUIS HOMEOWNERS COUNT ON US FOR LEAK DETECTION & PIPE REPAIR
We find the leak before we open anything up, which keeps the repair smaller and the cost lower. With over 40 years of hands-on experience in St. Louis homes, our licensed technicians locate pinholes, slab leaks, and hidden pipe failures without destructive guesswork.
Non-Invasive Electronic Detection
Acoustic listening and line-tracing equipment narrow down the exact failure point through concrete slabs and drywall.
Older St. Louis Home Experts
Four decades of direct experience with older galvanized, copper, and cast iron systems throughout South and West County.
Upfront Flat-Rate Pricing
Before any repair begins, you receive an exact price with no surprises or hidden fees.
WHY ST. LOUIS CALLS PLUMBING MASTERS
Honest, no-pressure service. We quote the repair the problem actually needs, not the biggest job we could sell.
Family-Owned Since 1984
Over 40 years serving St. Louis homeowners with trusted, neighborly service.
Find It Before We Open Anything
Non-invasive detection keeps openings small and repair costs significantly lower.
Licensed, Bonded & Insured
Background-checked technicians on staff — never subcontracted to third parties.
20+ Years Average Experience
Seasoned plumbers who diagnose leaks faster and more accurately on the first visit.
Older St. Louis Home Experts
Four decades of specialized experience with local copper, galvanized, and cast iron plumbing.
Honest, No-Pressure Service
We quote the repair the problem actually needs, never the biggest job we could sell.
Upfront Flat-Rate Pricing
A clear flat-rate price with a full breakdown before any work begins. No surprises.
Quality Work Guaranteed
Done right the first time, code-compliant, and backed by our Plumbing Masters guarantee.
COMPLETE LEAK DETECTION & PIPE REPAIR SERVICES
Electronic and non-invasive detection, slab leak diagnosis, copper, PEX and galvanized work throughout St. Louis, South County, and West County.
Electronic & Non-Invasive Leak Detection
We locate hidden leaks with specialized acoustic sensors before opening anything up.
Slab Leak Detection & Repair
Under-slab copper and PEX lines located and repaired with minimal floor disruption.
Under-Sink & Behind-Wall Diagnosis
Hidden moisture traced accurately to the exact failing pipe fitting, valve, or joint.
Pinhole & Burst Pipe Repair
Targeted, code-compliant spot repairs for pinholes, cracked fittings, and failing sections.
Water Line Repair & Replacement
Main service water lines and interior branches repaired or replaced with durable piping.
Whole-Home & Partial Repiping
Modern copper and PEX repipes for aging galvanized systems throughout St. Louis.
Frozen & Burst Pipe Repair
Rapid response for cold-weather freeze-ups, thaw diagnostics, and permanent pipe restoration.
Pressure Testing & Meter Diagnostics
System pressure tests and water meter checks that pinpoint exactly where water is escaping.
Post-Inspection & High Water Bill Leaks
Clear findings and repair documentation for real estate inspections and sudden utility spikes.
Need an accurate diagnosis before walls get opened?
Call or fill out the form. Tell us what you are seeing and we will schedule an on-site visit with an experienced technician.
SIMPLE FROM START TO FINISH
No confusing steps, no surprises. Estimate provided before any work begins. Flexible financing available through our lending partner.
Request an Estimate
Call us or fill out the form. Tell us what you are seeing, whether it is a spike in your water bill, a damp spot, low pressure or the sound of running water, and we schedule a visit at a time that works for you.
On-Site Diagnosis
A licensed technician locates the leak using non-invasive detection methods before anything gets opened up. You get the findings explained in plain language, no jargon.
Repair or Replace, Your Call
We show you what is actually failing. If a spot repair solves it, that is what we quote. If the pipe is failing along its length, we explain what a section replacement or repipe involves and let you decide.
Upfront Flat-Rate Pricing
Before any work starts, you get a clear flat-rate price for the job. No hidden fees and no number that changes after the fact.
Scheduled Repair
Once you approve, we get to work. We arrive on time, protect your home during the job, make the repair to code and keep disruption to a minimum.
Final Walkthrough & Completion
We pressure test the repair, walk you through what was done, answer questions and confirm you are satisfied before we leave.
OUR WORK SPEAKS FOR ITSELF
From vintage St. Louis brick homes to modern systems, our licensed plumbers handle every pipe repair with precision and care.
PROUDLY SERVING GREATER ST. LOUIS
Based in St. Louis and serving South and West County since 1984. Don't see your town? Give us a call, we likely cover it.
WHAT ST. LOUIS HOMEOWNERS
ARE SAYING
Real stories from homeowners who trusted Plumbing Masters to clear backups, inspect lines, and get their drains running right.
"Best experience. Knows how to make things right."
I had the best experience with Plumbing Masters. Joe was so nice. He knows how to make things right. Joe also gave me ideas on my patio to help with drainage.
NANCY WILLIAMS
Verified Google Review
"Best experience. Knows how to make things right."
I had the best experience with Plumbing Masters. Joe was so nice. He knows how to make things right. Joe also gave me ideas on my patio to help with drainage.
NANCY WILLIAMS
Verified Google Review
"Fixed in no time & walked through prevention steps."
Yesterday I reached out to get on schedule. Lorenzo was amazing! He got me fixed up in no time & walked me through steps to prevent line from busting/freezing next season! Every experience I've had with Plumbing Masters has been great! Highly recommend!
BRANDI SCHOENBERG
Verified Google Review
"Fair and reasonable price, great service."
Prompt, professional, courteous! Great service at a fair and reasonable price. I will definitely use Plumbing Masters for future needs.
SANDRA KELLER
Verified Google Review
COMMON QUESTIONS ABOUT LEAK DETECTION
Have questions about leak detection, slab leaks, or pipe replacement? Here is what homeowners ask us most.
How do I know if I have a hidden leak?
Common signs are an unexplained jump in your water bill, damp spots or stains on walls, floors or ceilings, a musty smell, low water pressure, warm spots on the floor, or the sound of running water when nothing is on.
How do you find a leak without tearing up my house?
Our technicians use non-invasive detection to narrow down the location before any access work happens. That keeps the opening as small as possible and the repair as contained as possible.
What is a slab leak?
It is a leak in the water lines running under your home's concrete foundation. Warm spots on the floor, running water sounds and unexplained water bills are typical signs. We locate it and walk you through the repair options.
How much does leak detection and repair cost?
It depends on where the leak is, how accessible it is and whether the fix is a spot repair or a pipe replacement. You get a flat-rate price before any work begins.
Should I repair the pipe or repipe the house?
If the failure is isolated, a spot repair is the right call. If you are getting repeat pinhole leaks or the system is old galvanized pipe, a repipe often costs less over time. Repiping is priced based on the number of bathrooms and the pipe material, and our technician walks you through both options honestly.
How soon can you come out?
We work to schedule as quickly as possible. For leaks that cannot wait, we book the earliest available slot in the schedule.
Do you repair the wall or floor afterward?
We handle the plumbing repair and close things up cleanly. Tell us what access we are working with and we explain exactly what to expect before we start.
My water bill spiked but I cannot find anything. Can you help?
Yes. That is one of the most common reasons homeowners call us. We pressure test and trace the system to find where the water is going.
Do you offer financing?
Yes. We offer flexible financing through our lending partner so you can get the repair done now instead of waiting.
Is the work guaranteed?
Yes. We stand behind every repair and installation we complete.
SEE A SPIKE IN YOUR WATER BILL? WE CAN HELP.
Call the office or fill out the form. Tell us what you are seeing and we will schedule an on-site visit at a time that works for you. Upfront flat-rate pricing on every job.