Slab Leak Repair in Mesquite, TX
Licensed Master Plumber M-43562 · $29 service fee · spot repairs $2,250–$4,550 · reroutes quoted in writing · financing available · 15% off same-day approval
In Mesquite, the City's water service ends at the meter. From the gasket on your side of the meter to every faucet in the house, the pipe is yours, including the lines in and under your slab. Most Mesquite homes went up before 1990, so many of those lines are decades old. When one leaks, we find out whether it's a water line or a drain, then put a price in writing to repair it, reroute it in PEX or repipe.
- Licensed & Insured (TSBPE M-43562)
- $29 service fee
- Upfront Pricing
- Certified Price Review
Where the City's water line ends and yours begins
Section 16-44 of Mesquite's utility ordinance (Ordinance No. 4599) says the City owns and maintains the water service from the City water main to the meter, including the meter and the meter box. The property owner maintains the water service from the gasket on the customer's side of the meter to the point of water demand, meaning your fixtures.
- A leak at the meter or meter box: the City's to fix.
- A leak anywhere past the meter gasket: yours, whether it's in the yard, in a wall or under the slab.
Mesquite's 1980s housing and the pipe under it
The Census Bureau's American Community Survey (2020–2024 5-year estimates) shows the 1980s were Mesquite's biggest building decade: about 28% of the city's roughly 54,000 housing units were built from 1980 to 1989. The median year built is 1983, and about 69% of homes were built before 1990.
The American Society of Home Inspectors' timeline has copper as the standard water pipe from the 1960s through the end of the last century, so copper supply lines run under many of those slabs. A 1980s slab is now about 40 years old, and that pipe has spent its whole life in shifting clay.
Signs of a slab leak in a Mesquite home
- Your water bill jumps but your water use hasn't changed.
- With every fixture off, the leak indicator on the meter keeps moving.
- A warm spot on the tile or wood floor, usually a hot-water line.
- The sound of running water in a wall or floor when nothing is on.
- Damp carpet, swollen baseboards or a musty smell in one room.
- New cracks in tile or drywall, or a door that suddenly sticks.
Water line or drain? We test both.
A "slab leak" can be in either of two systems:
- Supply line: the pressurized pipe that feeds your fixtures. It turns the meter. Fixed with a spot repair, a reroute or a repipe.
- Drain line: the cast iron or plastic drain under the floor. The meter doesn't move, but the soil gets wetter every time water goes down a drain. Found with a drain test and camera. Fixed by tunneling.
Testing both keeps you from paying to fix the wrong pipe.
Clay soil under Mesquite slabs
Mesquite sits mostly in Dallas County, with a portion in Kaufman County. A U.S. Department of Agriculture soil survey of Dallas County names Houston black clay as the county's most extensive soil type, and the Texas Water Development Board calls Houston Black soils classic clays that shrink and swell markedly with changes in moisture. A slab and the pipe in and under it move with that soil, and a leak makes the clay under the house swell even more.
Three ways to fix a supply-line slab leak
Side-by-side comparison: Slab leak: repair, reroute, or repipe?
- Spot repair. We pinpoint the leak, open the slab or tunnel to it, and replace the damaged section. Best for a first leak in pipe that's otherwise sound. A water-line / supply-side spot repair is $2,250–$4,550.
- Reroute. We abandon the leaking line in the slab and run new PEX overhead through the attic and walls to the fixtures it fed. Nothing is dug under the house, and that line is out of the slab for good. Priced in writing after the diagnostic, based on the fixtures involved.
- Repipe. A second or third leak usually means the rest of the pipe is just as worn. A whole-house PEX repipe takes 3–5 days and can cost less than repair after repair. See our repipe cost guide.
Drain leaks under a Mesquite slab
We reach a broken drain by tunneling in from outside the foundation, then repair the bad section or replace the run. If the cast iron is thin from end to end, replacing it beats patching it leak by leak. See sewer line replacement in Mesquite.
Mesquite slab leak repair prices
Some work has a set price; the rest is priced once we find the leak:
A reroute's price depends on how many fixtures the line feeds. You see every price in writing before work starts.
Start with a $29 service fee
Every job starts with a $29 service fee, a camera inspection or walk-through as needed, and a written quote before work begins. We're open Monday through Saturday, 7 AM to 7 PM, and closed Sunday.
Already have another quote? Send it to us.
Certified Price Review: We'll match or beat apples-to-apples plumbing scopes. Send us a written, itemized slab leak repair estimate from another licensed plumber. We compare scope, installation method, materials, access/excavation, warranty and diagnostics. If the work is directly comparable, we may adjust our price. Verbal or incomplete estimates may not qualify, and a review doesn't obligate us to match. See program terms →
Financing: Spread a reroute, repipe or under-slab drain repair over monthly payments. Financing is available, subject to credit approval. See financing options →
Save 15% when you approve the same day. Approve your written quote the day we give it to you and we take 15% off.
Mesquite slab leak FAQs
How much does slab leak repair cost in Mesquite?
Water-line (supply-side) spot repairs run $2,250–$4,550. If we tunnel to the leak or drain, it's $3,375 minimum for the first 5 ft, $425 per foot after that, and $1,150 per access hole. Reroutes are priced in writing after the $29 service fee, and same-day approval takes 15% off.
Is a leak at my water meter my responsibility in Mesquite?
No. Under Section 16-44 of Mesquite's utility ordinance, the City owns and maintains the service from the main to the meter, including the meter and meter box. Leaks past the gasket on your side of the meter, including under the slab, are the owner's.
Should I repair the leak or reroute the line?
A first leak in pipe that's otherwise sound is usually a spot repair. If the line has leaked before or runs under finished floors you don't want opened, a PEX reroute takes it out of the slab for good. We price both in writing.
Does homeowners insurance cover slab leaks?
It depends on your policy. The Texas Department of Insurance says most policies cover sudden and accidental water damage but usually not gradual leaks. Use our leak location and itemized quote when you talk to your insurer.
Can a slab leak damage my foundation?
It can. Water under the slab soaks the clay, and Houston black clay, the most extensive soil in Dallas County, swells when wet. Fix the leak before any foundation leveling; we can camera and pressure-test the lines and share the results with your foundation company.
How long does a whole-house repipe take?
A whole-house PEX repipe takes 3–5 days. We quote it in writing after the $29 service fee.
More for Mesquite homeowners: Plumber in Mesquite · Sewer line replacement in Mesquite · Slab leak detection · Does insurance cover a slab leak?