Slab Foundation Repair

Most San Antonio houses built from the 1960s onward sit on a concrete slab poured straight onto the ground. When the clay under one part of it dries out and shrinks, that corner drops and the house above it tells you about it. San Antonio Foundation Fix measures how far it has gone before quoting anything.

  • Upfront Quotes
  • Slab & Pier and Beam
  • Residential & Commercial

Signs That Need Attention

  • Interior doors that catch on the frame or swing open on their own
  • Cracks running at an angle from the corner of a door or window
  • Stair-step cracking in the brick or mortar outside
  • Floors that slope, or gaps under kitchen cabinet toe kicks
  • Gaps opening between the patio slab and the house
Crack running across a painted concrete slab

What the Work Includes

Not every slab needs all of this. The inspection decides what is required and the quote lists only that.

Elevation survey of the floor

Readings are taken room by room so the high and low points of the slab are on paper before anyone talks about piers.

Piers where the readings call for them

Piers are placed to support the sections that have dropped. Where they go, how deep they run and how many are needed are all stated in the quote.

Controlled lifting and shimming

The low side is raised gradually while cracks and doors are watched. Some movement will not come all the way back, and you are told that before work starts.

Cause dealt with, not just the symptom

If water is collecting against the slab or roots are drying the soil out under it, the repair is worth very little on its own.

Your Options

The quote should say which sections are being supported, what type of pier is proposed and what happens to the brick, drywall and tile as the house is lifted. Cosmetic repairs are usually a separate trade and a separate price, and it is fair to ask whether they are included.

If piers are recommended, read the comparison of pressed concrete and steel piers so you know what you are being offered. In many cases a slab repair goes hand in hand with drainage correction, and the leveling page explains what raising a slab actually involves.

Not sure the movement is still going on? An inspection can establish that first. If you are buying or selling, an independent structural engineer can be brought in to give an evaluation that is not tied to anyone selling the repair.

Slab Repair Questions

What affects the cost of slab foundation repair?

The number of piers, how deep they have to go, access around the house and whether drainage work is needed all change the price. San Antonio Foundation Fix gives a written quote after the floor has been measured, so you are pricing a diagnosis rather than a guess.

How long does the work take?

Most residential slab repairs are a matter of days on site rather than weeks, but it depends on pier count and access. San Antonio Foundation Fix gives a schedule with the quote. Read how the process runs to see what happens on each day.

Will the cracks close up after the repair?

Some close, some narrow and some stay visible. No repair can promise a house stops moving, because the soil under it keeps responding to weather. What repair can do is support the sections that dropped and slow further movement.

Do I need to move out during the work?

Usually not. Most people stay in the house. You will hear equipment and there will be work areas inside and out, which is covered before the crew arrives. Ask about this at the inspection.

Arrange a foundation inspection in San Antonio

Tell us what the house is doing and we will plan the right inspection.

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