When a hidden leak runs beneath your foundation, every day that it goes undetected costs you more money and causes more damage to your home. Tunnel Now is Houston’s dedicated under slab plumbing repair company. We find the leak, repair the pipe, and protect your foundation without tearing up your floors. If you need dependable under slab plumbing repair in Houston, you have come to the right place.
A few months ago, a family in the Heights noticed that their water bill had quietly doubled. There was no burst pipe. No flood. Just a slow, steady leak buried beneath their concrete slab that had been running for weeks before anyone discovered it.
They contacted Tunnel Now, and within 24 hours, our team had located the leak, opened a clean tunnel beneath their home, and repaired the line without removing a single floor tile, all while the family went about their daily routine.
That is what sets us apart. We are a Houston-based under slab plumbing repair company that serves all neighborhoods in the city, including Memorial and Meyerland, Sugar Land, and Pearland. We detect and repair any water leaks beneath your foundation.
Most homeowners don’t realize they have a slab leak until the signs pile up. You might notice warm spots on your floor, the sound of running water when everything is turned off, or a spike in water usage that shows up on your monthly bill. Sometimes it’s wet carpet or damp flooring near a wall. Other times it’s musty odors creeping up from below.
These are the exact signs our crews respond to every week across Houston. Our slab leak detection process uses electronic leak detection equipment and static pressure testing to pinpoint the source — down to within a few inches — before we ever pick up a shovel. We don’t guess. We locate.
Once we know where the problem is, we give you a straight answer about what needs to happen next.
Here’s something most plumbers won’t tell you: jackhammering through your floors isn’t always necessary. In fact, for most Houston homes, under slab tunneling is a far better option.
With tunneling, our team hand-digs a small passage beneath your foundation, accesses the damaged pipe, makes the repair, and backfills the tunnel when the job is done. Your tile stays intact. Your hardwood stays in place. Your home doesn’t look like a construction zone when we leave.
Tunnel Now got its name for a reason — tunneling for plumbing is what we do best. We’ve completed hundreds of tunnel jobs across Houston neighborhoods, including homes in Bellaire, Spring Branch, Cypress, and Pasadena. Our crews are trained specifically for this method, and we’ve refined our process to be faster and cleaner than the industry standard.
Detecting a leak is only half the job. Slab leak repair requires a plumber who knows exactly what they’re doing once they reach the pipe — and that’s where experience matters.
Houston’s soil shifts. Clay-heavy ground expands and contracts with the rain and drought cycles we see every year. That movement puts stress on pipes, especially older cast iron pipe systems that weren’t designed to flex. Over time, the joints crack, the pipe walls thin out, and water starts escaping.
Our repair work includes under slab sewer line repair, foundation leak repair, and full under slab repiping when a section of pipe is too far gone to patch. We use materials rated for Houston’s soil conditions, and every repair is tested before we close the tunnel.
One of the most valuable services we offer — and one most homeowners have never heard of — is hydrostatic testing. This test checks the entire drain system beneath your slab by sealing the lines and filling them with water to measure whether pressure holds.
If it holds, your system is intact. If it drops, there’s a leak somewhere below grade.
We recommend hydrostatic testing before buying an older Houston home, after any foundation repair work, and any time you’re seeing unexplained wet spots, pooling water near your foundation, or sewage smells. A post-foundation repair plumbing test using hydrostatic methods can catch damage that foundation companies miss entirely.
It’s a fast test. It’s affordable. And it can save you from buying a home with a buried plumbing disaster.
Before any repair, we want to know exactly what we’re dealing with. A sewer camera inspection lets us run a high-definition camera through your drain lines and see the interior condition of your pipes in real time.
We look for root intrusion, collapsed sections, offset joints, heavy buildup, and active cracks. The footage is recorded, and we walk you through what we found. No guessing. No surprises on the invoice.
Sewer camera work is also how we identify whether trenchless sewer repair is a viable option for your situation — which can save significant time and cost compared to open excavation.
When a sewer line is past the point of spot repair, full sewer line replacement is the answer. Tunnel Now handles complete line replacements using both traditional and trenchless methods, depending on your home’s layout and the extent of the damage.
Trenchless sewer repair — including pipe lining and pipe bursting — allows us to restore your sewer line without digging a trench through your yard. It’s faster, less disruptive, and often more cost-effective for Houston homeowners dealing with aging cast iron systems.
We also handle sewer tunneling services for properties where ground access is limited or where protecting landscaping and hardscape is a priority.
Not every under slab problem requires digging beneath the slab. In some cases, plumbing rerouting — also called a slab bypass — is the smartest path forward. Instead of accessing the damaged line underground, we reroute the plumbing through the walls or attic, completely bypassing the compromised section.
This approach works especially well for older Houston homes where the cast iron drain system beneath the slab has widespread deterioration. Rather than repair section after section, a full reroute installs new PVC lines through the living space, leaving the old system in place underground and permanently eliminating the source of leaks.
Our team also handles broader sub-surface utility repair work for properties dealing with complex underground plumbing systems — including multi-unit residential and light commercial buildings across the greater Houston area.
Houston’s foundation issues are well-documented. With over 90% of the city built on expansive clay soil, movement beneath your slab is a given — the question is whether your plumbing has survived it intact.
A foundation plumbing inspection from Tunnel Now gives you a clear picture of your system’s condition. We combine hydrostatic testing and sewer camera inspection into a thorough evaluation that covers both supply and drain lines. Whether you’re purchasing a home in Katy, Friendswood, or League City, or you’ve just had foundation piers installed by a structural contractor, we’ll tell you exactly where things stand.
Sticking doors, uneven floors, cracked floor tiles, wall cracks, and soil shifting around your foundation perimeter are all signs that plumbing and structure may both need attention. We work alongside foundation companies and can coordinate inspections to happen back-to-back.
Some slab leaks cannot be scheduled for next week. If you notice buckling hardwood, actively growing mold, or a sewage odor coming up through your floors, it’s an emergency, and Tunnel Now will respond.
Our emergency slab leak repair service is available to Houston homeowners who require assistance immediately. We arrive, assess the situation, and get to work. We can do same-day tunneling on most residential jobs because our trucks are fully stocked.
Tunnel Now specializes in under slab plumbing repair in Houston. We do not do roofing. We do not do HVAC. We go deep beneath homes to fix what’s broken underground, and we’ve made that our primary focus.
Our crew is familiar with Houston’s soil and pipe systems, as well as the neighborhoods where clay movement causes the most damage year after year. When you call Tunnel Now, you are speaking with people who have been underneath hundreds of Houston homes and will give you a straight, honest answer about what your repair requires.
If your water bill is rising, your floors are warm, or you detect an unidentified sewage odor, give us a call. We’ll locate it, repair it, and leave your house cleaner than we found it.
Tunnel Now. Houston’s Under Slab Plumbing Specialists.
Under Slab Plumbing Repair Across All of Greater Houston
Tunnel Now is Houston’s excavating contractor for underground plumbing problems. Whether you have a slab leak in The Woodlands, a collapsed sewer line in Pearland, or a broken underground utility in Katy, our crew can get there fast — day or night.
We serve every corner of the Greater Houston area, from the inner loop to the outer counties.
We handle more slab leak calls in North Houston than almost anywhere else in the metro. The older clay soils in Spring, Humble, and Conroe shift constantly — and that movement cracks pipes. If you’re in Spring, The Woodlands, Conroe, Tomball, Cypress, Humble, Kingwood, Atascocita, Greenspoint, Pinehurst, or Fairfield, we respond fast and dig smart.
West Houston neighborhoods sit on expansive soils that swell and shrink with every rain cycle. That’s tough on slab plumbing. We regularly service Katy, Cinco Ranch, Memorial, Piney Point Village, Spring Branch East, Westchase, the Galleria, Uptown, and West University Place for under slab tunneling, slab leak repair, and sewer line replacement.
Inside the loop, we see a lot of cast iron pipe failures. Homes in The Heights, Montrose, Midtown, River Oaks, Downtown Houston, Reliant, Bellaire, and Meyerland were built in an era when cast iron was standard — and those pipes are now reaching the end of their lifespan. Our team handles cast iron pipe replacement, sewer camera inspection, and hydrostatic testing throughout central Houston.
Fort Bend County has experienced some of the fastest growth in Texas, and with new construction comes new plumbing problems. We service Missouri City, Sugar Land, Richmond, Rosenberg, Stafford, and Fresno for everything from foundation plumbing inspections to full under slab sewer line repair.
Coastal soils near the Gulf shift differently than those inland. In Pearland, League City, Friendswood, Deer Park, Clear Lake, South Houston, Webster, Dickinson, Alvin, and San Leon, we see unique sub-surface conditions that require experienced excavating hands. Tunnel Now knows this area well and responds quickly.
Pasadena, Baytown, Channelview, and Galena Park are home to some of Houston’s oldest residential plumbing. We regularly run sewer camera inspections and electronic leak detection in these communities to find problems before they become disasters.
Tunnel Now is licensed and equipped to work throughout the following counties:
Harris County · Fort Bend County · Montgomery County · Austin County · Brazoria County · Chambers County · Colorado County · Galveston County · Liberty County · Matagorda County · San Jacinto County · Walker County · Waller County · Wharton County
No matter where you are in the Greater Houston region, if you have a slab leak, a failed underground utility, or a collapsed sewer line, Tunnel Now can get there — and fix it right.
Attention Houston residents in need of under slab plumbing repair. If you’re looking for a tunneling company to help you and your plumber reach an area beneath your home’s slab foundation to repair or reroute a drain or sewer pipe. We can work with you and your plumber or provide a turnkey solution.
Call Tunnel Now to request a free estimate. 713-321-2657
Our skilled workers hand dig an opening (access hole) at the house foundation so that the plumber can enter a carefully excavated tunnel beneath the slab. We will dig 3 linear feet (15 feet or more) to allow the licensed master plumber to access the area beneath the house or business to repair the drain pipes or sewer lines.
Let your family, friends, and business associates know that Tunnel Now provides residential and commercial under slab plumbing repair.
