Houston Demolition Contractor | Trench Service Experts

Houston Demolition Contractor for Under-Slab Tunneling & Foundation Repairs

Houston Demolition Contractor, Trenching and Tunneling Services, specializes in under-slab tunneling for plumbing leaks and foundation repairs. We provide safe, low-impact tunneling and trenching solutions for plumbing, sewer, water, electrical, and gas line access beneath concrete slabs, driveways, sidewalks, and foundations throughout Houston, Katy, Cypress, Fulshear, Spring, and surrounding areas.

Our services include hand-dug tunnels, trenching, excavation, access holes, slab cutting, concrete removal, selective demolition, and professional backfilling for residential and commercial projects. We work closely with licensed plumbers, foundation repair specialists, builders, contractors, and homeowners to create efficient access for repairs, remodels, emergency collapsed lines, and city inspection or code compliance requirements.

As a trusted Houston trenching and tunneling contractor, we focus on minimizing property damage while delivering reliable, cost-effective excavation and demolition solutions.

About us

Houston Demolition Contractor for Under-Slab Tunneling & Foundation Repairs

With over 4 years of industry experience, Trenching And Tunneling Services has built a reputation for dependable under-slab access and excavation solutions across Houston and surrounding communities. Our team supports plumbers, builders, foundation repair companies, and property owners with precise tunneling methods designed to safely access, re-route, replace, and repair underground drain lines, sewer pipes, water lines, electrical conduits, and gas lines beneath concrete foundations.

We are committed to delivering clean, efficient workmanship with minimal disruption to homes and commercial properties. From small residential access tunnels to large-scale excavation and selective demolition projects, we provide reliable solutions tailored to each project’s needs.

Why Clients Rate Us the Best Demolition Contractor in Houston

Our clients consistently rate us as the premier demolition contractor in Houston for our professionalism and site cleanliness. Explore our latest verified reviews below to see how we maintain a 5-star standard on every job across the Greater Houston area.

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Frequently Asked Questions about Houston Trenching & Tunneling

How much does under-slab tunneling cost in Houston?

In 2026, under-slab tunneling in Houston typically costs $250 to $450 per linear foot, with average residential projects ranging from $3,500 to $7,000. Final pricing depends on Houston’s “gumbo” clay density, depth of utility lines, and the total length of the tunnel. We offer free on-site inspections for precise quotes.

What areas in Houston do you serve for trenching and tunneling?

Trenching & Tunneling Services serves the entire Greater Houston area, including Katy, Cypress, Fulshear, Spring, Sugar Land, and Humble. We specialize in local soil conditions and provide residential and commercial excavation services throughout Harris, Fort Bend, and Montgomery Counties.

Can you tunnel under a concrete slab without damaging my floors?

Yes, under-slab tunneling allows for plumbing and foundation repairs without breaking your interior flooring. By digging horizontally beneath the slab from an exterior access point, we eliminate the need for indoor jackhammering, keeping your home’s interior intact and dust-free during the repair process.

How do I know if I need sewer line trenching or tunneling?

You likely need professional trenching or tunneling if you notice signs of under-slab plumbing failure, such as:

Recurring sewage backups or slow drains.
Unexplained cracks in your interior walls or foundation.
Wet spots or unusually lush patches of grass in your yard.
High water bills or the sound of running water under your floors.

Do you offer emergency trenching for plumbing leaks in Houston?

Yes, we provide 24/7 emergency trenching and tunneling to assist plumbers with urgent sewer line collapses and water leaks. We prioritize fast-response excavation to ensure your plumbing team can access and repair the issue as quickly as possible to prevent further foundation damage.

Why should I hire a professional trenching contractor in Houston?

Hiring a professional ensures the job complies with Houston’s specific soil stability requirements and OSHA safety standards. Professionals handle “811 Call Before You Dig” coordination, prevent accidental utility line strikes, and use proper shoring techniques to ensure tunnels remain stable and safe for plumbers to enter.