trenching services

Under Slab Tunneling in Houston, TX

Do you have a plumbing or foundation problem and need an experienced company to provide under slab tunneling? offers individuals, plumbers and contractors a tunneling service that allows the plumbing company to reach areas under the house slab to make repairs, re-route or move drain or sewer pipes.

Plumbing Under Slab Foundation Houston

Get a Free Estimate for Under Slab Tunneling for Plumbing and Electrical Repairs from Houston excavating contractors. assist professional plumbers, electrical contractors and individuals in the Houston, TX and surrounding areas.

Find Under Slab Tunneling Company in Houston, TX

under slab plumbing repair
Do you need tunneling and trenching services for plumbing and electrical repairs in the Houston, TX area? We specialize in hand digging tunnels and trenches under slab houses and buildings for plumbers, electricians, remodeling contractors and individuals. Call us to request pricing or to schedule service.

Seven Myths on Tunneling Under a House vs Cutting Slabs for Repairs Dispelled by Advanced Foundation Repair

Myth: Tunneling under a house is always more expensive than cutting concrete slabs.

Fact: Once all the costs are considered, tunneling is often cheaper. When breaking through a slab, remember the flooring with have to be removed and replaced, the interior of the home cleaned, and possibly homeowners will have to move out while work is in progress.

Tunneling generally costs more for situations where the floor finishes are inexpensive. For expensively finished homes, tunneling can cost less. For the average homeowner, tunneling will cost more. Advanced prefers tunneling under a foundation because it has some distinct advantages over cutting concrete slabs:

  • Homeowners can stay in their homes during the repairs.
  • Avoids indoor mess and disruption especially when having to replace large sections of flooring or needing to install multiple foundation piers/pilings.
  • For plumbing, plumbers don’t have to pin point the exact location of leak.

Myth: Cutting concrete slabs is a one size fit all solution.

Fact: There are different types of slab foundations. In some cases, breakouts should be avoided. “In my opinion,” Fred Marshall states, “breaking through structurally suspended flat slabs should be avoided.” Flat slabs are slabs with no interior beams.

Myth: Concrete slabs are never quite as secure when patches are applied after cutting through them.

Fact: If properly repoured, patches are secure. Fred Marshall shares,
“In 21 years, I think that we have only had one interior patch fail, including patches in garages that cars drive on.”

Hand Digging Method of Tunneling & Trenching

under slab plumbing repairMyth: Homeowners can do the tunneling themselves using a tunnel boring machine.
Fact: Tunnel boring machines are machines used to bore tunnels, generally for mining. They are too big and expensive to use on homes. Machines can be used to bore small diameter tunnels through which one can install pipes, electrical lines, and other items with small diameters. Tunneling under the house slab is physically challenging, to say the least. Advanced would not recommend that a homeowner try it. Fred Marshall mentions, “One homeowner that I know of tunneled. It took 6 months to do what we do in a week.”

Myth: Mudjacking is a good way to fill voids created when refilling tunnel.

Fact: Mudjacking can be used and it does require specialized equipment. Advanced strongly recommends that people not use mudjacking in any situation involving expansive soils that have heaved. Using mudjacking in such situations can lead to future movement. For plumbing repairs, Advanced recommends that mudjacking be avoided. The material that is pumped in will surround the pipes and then harden. If the underlying soils shrink, say during a dry period, the soils will shrink and go down. When the soils go down, the concrete surrounding the pipes will settle, pull the pipes down, and break them.

You Need Plumbing Tunneling Under Slab

Myth: A soil compaction test is required to prevent voids after tunneling.

Fact: When soils are moved, engineers like to have the soil compacted so that it will not settle later. A compaction test is a lab test. The tests usually have a specification of 90 or 95% of Proctor Density or modified Proctor Density. To reach the specified density, it is necessary to use mechanical compactors which will not fit in tunnels. There are always voids after tunnels are refilled. Voids are okay, as the foundations are capable of spanning across the voids. Long tunnels can be drained and sealed.

Myth: Insurance companies prefer tunneling.

Fact Insurance companies prefer the solution that costs the least.

Tunneling Under Concrete Slab in Houston

Homeowners have a choice to make when there is an under slab plumbing leak or when foundation repairs are needed. Is it better to tunnel under a house or is cutting through the concrete slab the best way to go?


One of the most hazardous plumbing problems you can face in your home is a slab leak. Even a small slab leak can cause havoc with your foundation as well as inside your home. Early detection and prevention of slab leaks can help save you a great deal of time and money.

A slab leak occurs when underground pipes burst within the confines of a concrete foundation beneath a permanent, fixed building. It is most often caused by a factors including:

• Galvanized steel piping not properly insulated
• Water leaking through the foundation
• Acidic soil causing rust and corrosion on plumbing pipes
• High pH value of water
• General wear and tear

Slab leaks require special care and early stage detection. To limit damage to your property, locate the exact source of the leak. Seek out a plumbing firm that can fix your problem with minimally invasive technology. Expert plumbing technicians must be able to manage and handle any residential or commercial job, large or small through advanced leak detection techniques. From drain and sewer cleaning to trenching and tunneling, plumbers must be able to meet all your plumbing needs. They must be able to handle kitchen, bathroom and laundry room problems efficiently.

The best plumbers must be able to scan and test the plumbing system to let you know if your slab has a leak. It the leak is there, they can locate it and find the best possible way to repair and fix it. There are many ways to repair a slab leak, including making a hole in the slab or by tunneling under your home foundation slab. By using this type of method, you have no flooring to replace, no broken foundation, and you minimize the inconvenience of having a plumbing crew inside your home.

Read more about plumbing services to detect and stop slab leaks under concrete slab foundation:

Rerouting Plumbing Lines Under Foundation

Typical costs:

  • Jack-hammering the concrete slab and repairing the leaking pipe typically costs a minimum of $500-$800, but can cost $1,000-$4,000 or more, depending on local rates, the extent of the problem and the ease of access.
  • If a pipe is deteriorating, repairing a leak in one section can put added pressure on the rest of the pipe, increasing the possibility of future slab leaks. One option is to close off the leaking line at the nearest manifold, and re-route a new pipe, usually above ground. In simple situations, costs for re-routing a short length of pipe can start at $200-$600, but more often will run $1,000-$3,000, and can go as high as $5,000 or more.
  • If the slab leak is just one symptom of a disintegrating plumbing system and it appears that leaks will continue to occur throughout the house, it might be time to replace all the pipes, which could cost $2,000-$15,000 or more.
  • If a leak is undetected and neglected for a long period of time, it can cause extensive water damage to the foundation and to the home’s interior flooring, walls and furnishings. Repairs can cost from $100-$4,000, and much more if items such as a deck or porch have to be replaced.
  • Typically, homeowners insurance does not cover the cost of repairing the leaking pipe, rerouting pipes, re-plumbing the house or any foundation repairs, but may cover any water damage to flooring, carpeting, cabinets, personal belongings, etc., depending on the terms of the policy and the deductible amount.

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Under Slab Tunneling Houston Info

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