Foundation repair in Houston

Foundation repair in Houston usually means putting piers under a slab or a pier-and-beam house to stop it moving, then lifting it back toward level. Most Houston jobs land between about $3,300 and $6,800, according to a 2026 Houston guide, though a large pier job can cost far more. The reason it's so common here is the ground: much of the Houston area sits on heavy Gulf Coast clay that swells when wet and shrinks in drought. This page covers what repair costs, the signs worth acting on, how the main repair methods work, and how a visit runs.

How much does foundation repair cost in Houston?

Most foundation repair jobs in Houston cost about $3,300 to $6,800, according to a 2026 Houston Press guide. Nationally, This Old House puts the typical range at $2,224 to $8,134, with an average of $5,179. The number of piers is the biggest driver: each concrete pier runs about $300 to $600 in Houston, and steel piers start around $1,000 each.

What moves the price:

• How many piers. A corner that has dropped might need six piers. A house settling along a whole side might need twenty or more.
• Pier type. Pressed concrete pilings are the common choice in Houston. Steel and helical piers cost more per pier.
• Interior work. Piers under interior walls mean breaking through the slab inside, which the Houston guide says adds about 15%.
• Access. Tight side yards, decks and landscaping add work. The same guide puts access problems at 6 to 8% on pier costs.
• Plumbing. Lifting a slab can stress the drain lines under it. Many contractors recommend a plumbing test before and after.

These are guide figures, not quotes. The contractor who visits gives you the real price in writing. For a full breakdown by job type, see the foundation repair cost guide for Houston, and for per-pier detail the pier foundation cost page.

Why do so many Houston foundations need repair?

Houston foundations move mainly because of the soil. The USDA describes the Lake Charles clay, typed in Fort Bend County and found across southeast Texas between the Colorado and Trinity rivers, as 45 to 60% clay. When it dries, it cracks up to about 2 inches wide and a foot or more deep, and those cracks stay open 60 to 90 days in most years. Soil that shrinks and swells that much lifts and drops a slab with the seasons.

Three things make Houston harder on foundations than most cities:

1. Expansive clay. The Lake Charles and Beaumont clays both shrink and crack when dry. A slab sitting on them gets pushed up when the clay is wet and loses support at the edges in a dry summer. There is more on foundation settling and Houston soil.
2. Subsidence. Decades of groundwater pumping lowered the land itself. USGS measured more than 10 feet of subsidence near Pasadena between 1906 and 1995, and the Harris-Galveston Subsidence District's 2025 report puts today's fastest sinking, over 3 cm a year, in the Katy and Fulshear area.
3. Water extremes. During Hurricane Harvey, 47.4 inches of rain fell at Clear Creek and I-45 in four days, according to the Harris County Flood Control District. Long droughts followed by floods are exactly what clay soils react to.

The water around your house matters as much as the soil under it. Gutters that dump at the slab, flat yards that hold water, and big trees drawing moisture from one side all make movement uneven. That's why foundation drainage is often part of a lasting repair.

What are the signs your foundation needs repair?

The most common signs are doors that stick or won't latch, cracks in drywall running from the corners of doors and windows, stair-step cracks in brick, gaps between walls and the ceiling, and floors that slope or feel uneven. One sign alone may be normal settling. Several together, or cracks that keep growing, are worth a professional look.

Signs to watch, inside and out:

• Doors and windows. Doors that rub at the top corner or swing open by themselves. See why doors stick in Houston houses.
• Drywall cracks. Diagonal cracks from door and window corners, or cracks that reopen after patching.
• Brick veneer. Stair-step cracks along the mortar joints, or brick pulling away from window frames.
• Floors. A marble that rolls across the room, or a 1 inch drop from one side of a room to the other. See how to fix uneven floors.
• Outside the slab. Cracks in the exposed slab edge, gaps where the slab meets the brick, or soil pulled away from the foundation in a dry summer.

A crack's width and direction say a lot. Our guide to when foundation cracks are a worry and the early signs of foundation problems with pictures explain what's cosmetic and what isn't.

What foundation repair methods are used in Houston?

Most Houston repairs use underpinning: piers driven or drilled under the foundation down to firmer soil, then the house is lifted and shimmed back toward level on them. Pressed concrete pilings are the most common method here. Steel push piers and helical piers are used when deeper support is needed. Shallow slab lifting, such as mudjacking, suits driveways and patios more than houses.

Each has a page of its own: foundation piers, helical vs push piers, foundation leveling and mudjacking in Houston. The aim of every method is the same: stabilize the house so the movement stops, then lift it as close to level as the structure allows. Few houses come back perfectly flat, and a good contractor says so up front.

Is it possible to repair a foundation?

Yes. Almost every settled or cracked slab and pier-and-beam foundation in Houston can be repaired by supporting it on piers and lifting it back toward level. Full replacement is rare and usually only considered when the slab itself has broken up badly. Repair is far cheaper than replacement and you can usually stay in the house.

What repair can and can't do:

• It stops further settling in the areas where piers go in.
• It lifts the house back toward level, often closing cracks and freeing doors.
• It doesn't fix cosmetic damage already done. Drywall, brick and trim repairs come after.
• It doesn't stop the clay moving. Good drainage and steady soil moisture are still on you.

If the problem is only hairline cracks in the slab with no movement, foundation crack repair with epoxy or sealant may be enough.

Slab or pier and beam: does the type of foundation matter?

Yes, the type of foundation changes the repair. Most Houston houses built since the 1960s sit on a concrete slab on grade, repaired with piers pressed under the slab edge and interior. Older homes, like the 1905 to 1925 Craftsman bungalows of the Heights, often sit on pier and beam, where the repair is usually reshimming, new piers and replacing rotted beams or joists in the crawl space.

See slab foundation repair, pier and beam foundation repair and the comparison of pier and beam vs slab.

What is a pier for a foundation, and how deep does it go?

A foundation pier is a column placed under a house to carry its weight down to firmer soil, below the layer that shrinks and swells. In Houston, pressed concrete pilings are usually driven until the hydraulic jack meets enough resistance, which is often several feet down. Steel and helical piers can reach much deeper. The right depth depends on the soil at your house, not a fixed number.

How long piers last depends on the type and the soil around them. Steel and concrete piers are built to last for decades. What fails more often is the soil moisture around the house and the shims on top of the piers, which is why some contractors offer a warranty on the piers and a periodic adjustment. Read the warranty terms closely: many cover the piers only and exclude plumbing leaks, drainage problems and tree roots.

What time of year is best for foundation repair in Houston?

Foundation repair can be done any time of year in Houston. Many contractors prefer to lift a house when the soil is at a normal moisture level rather than at the end of a long drought, when the clay has shrunk, or right after heavy rain, when it has swelled. The bigger risk is waiting: movement and damage keep adding up whatever the season.

Some practical points:

• Late summer is when clay soils are driest and cracks often show up most. It's a good time to spot problems and get an inspection.
• After a wet spell some cracks close up again, which can make a problem look smaller than it is.
• Scheduling around Houston's heavy rain is about digging, not the repair. Wet holes slow the work.

How long does foundation repair take, and can you stay in the house?

A typical Houston slab repair with exterior piers often takes one to three days, depending on the number of piers and how much interior work there is. You can usually stay in the house throughout. Interior piers take longer, and a room may need to be cleared and the floor covering lifted where the crew breaks through the slab.

What to expect on the day:

• Holes dug along the outside of the slab where the piers go.
• Noise from the hydraulic jacks while pilings are pressed down.
• A lift, then shims set and the holes backfilled.
• Some contractors check the plumbing afterward, because lifting can shift drain lines.

Mudjacking on a driveway or patio is faster, often a few hours, but the slurry needs 24 to 72 hours to cure, according to the Houston guide.

Do you need a permit for foundation repair in Houston?

Inside the City of Houston, foundation repair needs a building permit. The city's own weekly permit report for one week in July 2024 lists 23 foundation repair permits, including residential shim, level and pier work. Cities like Bellaire, Katy and Sugar Land have their own rules, and Bellaire charges a $130 floodplain permit for residential foundation work.

Who pulls the permit is worth asking about. In most cases the contractor applies for it as part of the job. If you're asked to pull it yourself, ask why. Older homes in the Heights historic districts may also need a Certificate of Appropriateness for visible exterior changes. Each Houston area page covers the local rules where they differ.

Does homeowners insurance cover foundation repair?

Usually not. Most standard Texas homeowners policies exclude settling, soil movement and earth movement, which covers most foundation repair. There are exceptions: damage caused by a sudden covered event, such as a plumbing leak under the slab, may be covered under some policies. Read the exclusions in your own policy, and ask your insurer before work starts.

See our guides to whether home insurance pays for foundation repair and the wider insurance and foundation repair guide. If a slab leak is the cause, the foundation leak repair cost page explains the plumbing side.

What destroys the foundation of a house?

Uneven soil moisture destroys more Houston foundations than anything else. When clay under one part of the slab dries and shrinks while another part stays wet, the house bends. Poor drainage, leaking plumbing under the slab, trees drawing water from one side, and long droughts are the usual causes. Construction on poorly compacted fill adds to it.

Things you can control:

• Drainage. Gutters and downspouts that carry water well away from the slab, and soil graded to slope away from the house.
• Steady moisture. In long dry spells, some Houston homeowners water around the foundation to keep the clay from shrinking. See soaker hoses for foundations.
• Plumbing. A slab leak can wash out or swell the soil under one area. Watch for unexplained water bills or warm spots on the floor.
• Trees. Large trees close to the house can dry out the soil on one side.

Can deteriorating concrete be repaired?

Yes, if the concrete itself is sound underneath. Surface spalling, hairline shrinkage cracks and small chips in a slab edge can be patched or sealed. If the slab is breaking up, the reinforcing steel is badly rusted, or sections have dropped, the repair is structural and needs piers, not a patch. An inspection tells you which you have.

A foundation inspection or a structural engineer's report is worth it before larger work, especially if you're buying. See buying a house with foundation issues for what to ask.

How does a foundation repair visit work?

You tell us about the house and what you're seeing. We'll arrange a visit, and a local foundation contractor comes to you. They walk the house, take floor elevation readings, look at the cracks, the drainage and the plumbing signs, and then give you a written price for the work before anything starts. You decide whether to go ahead.

What to have ready for the visit:

• When you first noticed the problem and whether it's getting worse.
• Photos of cracks, ideally with a date.
• Any past repair paperwork or warranty, and any engineer report.
• Whether the house is slab or pier and beam, if you know.

Which areas of Houston do we cover?

We cover the City of Houston and the suburbs around it. Conditions differ a lot across the metro: pier-and-beam bungalows in Houston Heights, fast subsidence in Katy, historic sinking in Pasadena and Baytown, Harvey flooding in Meyerland, Kingwood and Friendswood, and separate city permits in Bellaire.

We also cover Sugar Land, Jersey Village, Cypress, Spring, The Woodlands and Clear Lake. Every area is on the areas page, and more answers are in the foundation repair guides.