- BBB A+ Rated
- Mesquite Chamber of Commerce Member
- 30+ Years Experience
Slab Leak Repair in Rockwall, TX
A slab leak is a water line failure underneath the concrete foundation of your house. You cannot see it, you often cannot hear it, and the first sign is usually a water bill that jumped for no reason or a patch of floor that is warm underfoot.
The part homeowners worry about is the concrete. That worry is reasonable, and it is why our first step is always locating the leak precisely rather than opening the floor to go looking for it.
We serve Rockwall from our shop at 844 Dalworth Dr., Suite 10 in Mesquite, about 20 minutes southwest. Rockwall is outside our immediate core service area, so we will give you an honest arrival window when you call rather than an optimistic one.
Call James Armstrong Plumbing at 214-918-6109 for slab leak detection and repair in Rockwall, TX.
Same-Day Service — Call Before Noon • Most calls are answered within 15 minutes
Licensed Master Plumber
License #M39428
The “Armstrong Clean Promise".
We leave your home cleaner than we found it, or we pay for the cleaning. No mess, no stress — that's our guarantee.
GET AN ESTIMATE NOW
Once you submit, we may reach out to you via phone, email, or text to fetch information, which you can opt out of at any time. We will never share your personal information with third parties for marketing purposes. Consent is not a condition of purchase. Message/data rates apply.
Our Services
Comprehensive Plumbing Solutions for Homes & Businesses
Most Requested 
Plumbing Repairs and Installation
Get fast help from a trusted plumber in the DFW for leaks, fixture installs, and upgrades. We restore your plumbing with smooth, reliable work.
Water Heater Services
From quick fixes to full replacements, our water heater services in Dallas-Fort Worth, keep your hot water steady. We work on all standard and tankless models.
Most Requested 
Drain Cleaning Services
Stubborn clogs disappear with our drain-cleaning solutions in Texas. We clear the buildup fully so your drains flow the way they should.
Sewer Line Plumbing
Our team handles sewer line plumbing in the DFW , with careful inspection and precise repairs. We keep wastewater moving safely away from your home.
Gas Line Plumbing
Safe and reliable gas line plumbing in the DFW, is just a call away. Whether it’s a leak, repair, or new line, we follow strict safety standards.
Emergency Service
Emergency Service — Available 24/7
Burst pipe? Major leak? Don’t wait. Our emergency team serves the entire DFW area around the clock.
Technician available now
Proudly partnered with leading brands
Meet James Armstrong
Meet the Master Plumber Serving DFW: James Armstrong
James Armstrong has been a Mesquite-resident Master Plumber since 1995. What began as helping neighbors fix leaky faucets turned into a career — and eventually a family business, built on one simple rule: treat people right, do the job with integrity, and always stand behind your work. Today, James and his crew serve Mesquite, Rockwall, Sachse, Garland, and the broader east DFW metro, with most calls dispatched and on-site within 25 minutes of the Mesquite headquarters at 844 Dalworth Dr.
“In thirty years of plumbing across the DFW metro, including Rockwall, the drain calls almost always come down to two things: tree roots in the older neighborhoods, and grease and hair buildup in the newer developments. We camera-inspect first, then choose hydro-jetting or snaking based on what we actually see — not on what gets you to the highest invoice.”
James Armstrong, Master Plumber • Texas License M-39428 • Founder, James Armstrong Plumbing
Every job comes with the Armstrong Clean Promise — we leave your home cleaner than we found it, guaranteed. No excuses, no mess, no shortcuts. It’s the kind of commitment that’s earned us thousands of repeat customers and a reputation across the DFW metroplex for honest, reliable work.
Why Choose Us
Why Rockwell Homeowners Choose James Armstrong
Licensed & Certified Technicians
Our plumbers are fully licensed, professionally trained, and committed to delivering quality workmanship that meets today’s industry standards.
Transparent, Upfront Pricing
No hidden fees and no surprises. Just clear, honest pricing you can trust before we begin any repair or installation.
Fast & Friendly Service
We respect your time. Our technicians arrive promptly, work efficiently, and treat you and your home with courtesy and care.
The Armstrong Clean Promise
Floor protection, shoe covers, and a meticulous cleanup on every job. If your home isn’t cleaner than we found it, we pay for the cleaning.
5-Star Rated by Homeowners Like You
Local families choose us for reliable plumbing and friendly service. Your comfort, safety, and satisfaction are the reasons we do what we do.
Emergency Response Available
Afterhours emergency calls accepted. Call (214) 918-6109.
Emergency Calls Accepted After Hours & Weekends as well.
Our Process
What to Expect When You Call
Call or Book Online
Speak with a real person, not a call center. We schedule at your convenience.
Same-Day Inspection
A licensed plumber evaluates your issue on-site. No guesswork.
Upfront Quote
You approve the price before work begins. The number you see is final.
Clean, Expert Work
Armstrong Clean Promise — we leave your home better than we found it.
Follow-Up Guarantee
We check in within 24 hours and follow up to ensure everything holds.
No hassle estimate · No obligation · Real person answers
Service Areas
Serving Communities Across Dallas-Fort Worth
- Allen
- Anna
- Arlington
- Azle
- Balch Springs
- Bedford
- Benbrook
- Blue Mound
- Blue Ridge
- Burleson
- Celina
- Colleyville
- Combine
- Dallas
- Everman
- Fairview
- Farmersville
- Flower Mound
- Forest Hill
- Fort Worth
- Frisco
- Garland
- Grand Prairie
- Plano
- Richardson
- Rowlett
- Sunnyvale
Latest Tips
From Our Blog
Commercial vs Residential Plumbing: What Changes When a Business Calls
Why Is My Water Heater Leaking? A Full Guide
Grease Trap vs Grease Interceptor: Size, Flow and What Each Catches
Outdoor Faucet Freeze Protection, North Texas
How to Winterize Your Plumbing in North Texas
Hydro Jetting vs Snaking a Commercial Drain: Which One, and When
FAQ
Frequently Asked Questions
Have questions? We’ve got answers. Can’t find what you’re looking for? Give us a call anytime.
The most common signals are a water bill that rose with no change in usage, a warm spot on the floor, the sound of running water when everything is off, damp flooring, or a musty smell that will not clear. Several of these together is a strong indicator. Shut off the water at the main and call 214-918-6109.
Not always. There are three repair paths. A spot repair opens a small section of floor over the leak. A reroute abandons the failed line and runs new pipe through walls or the attic, leaving the floor untouched. Tunneling reaches the pipe from outside and beneath the foundation, also leaving floors untouched. We explain which fits your situation and why.
We isolate and pressure test the hot and cold lines separately to confirm which line is leaking, then use acoustic leak detection and thermal imaging to pinpoint the location, and line tracing to map where the pipe actually runs. We mark the spot and show you the readings before quoting any repair.
It can contribute. North Texas clay expands when wet and shrinks when dry, and a slab leak puts continuous water under one area of the foundation. That uneven moisture causes uneven movement, which is why sticking doors and new drywall cracks often appear before the leak itself is found. Catching it early keeps it a plumbing repair.
It depends on where the leak sits under the slab, which repair method fits, your flooring, and the condition of the rest of the line. We give a written flat-rate quote after locating the leak and confirming the method. We do not quote slab leak repair over the phone, because that would be a guess.