Foundation Repair GuideFree, source-cited foundation information

Foundation Repair in Texas: Clay Soil, Engineering Guidelines and Local Context

Last reviewed October 28, 2026 · 5 sources cited

Texas has expansive clay in many areas, a large housing stock on slabs and pier and beam foundations, and one of the most-cited sets of residential foundation evaluation guidelines. This page gathers the Texas-specific material; the rest of the guides apply everywhere.

Clay and slabs

The 2004 USDA NRCS publication on soil hazards describes studies in Waco, Texas in the 1960s finding that reinforced concrete slabs could "float" on the soil and isolate a one-story structure from clay movement, and lists post-tensioned foundations, gravel buffers, pilings and control of runoff and landscape moisture among measures on expansive soils.[1] That is why engineered slabs are common in expansive-clay areas. See expansive clay soil.

The ASCE Texas Section guidelines

The Texas Section of the American Society of Civil Engineers adopted Guidelines for the Evaluation and Repair of Residential Foundations in 2002 (effective January 1, 2003). They are not standards and do not by themselves set the standard of care, but they are widely used as a reference for how engineers evaluate performance and integrity and for common remedies.[2] Much of this site's evaluation advice draws on them: how to read an inspection report, repair methods compared, and questions to ask a contractor. They are about Texas houses; other regions use other benchmarks.

Water, trees and sinkholes

Selling or buying in Texas

Texas requires a statutory seller's disclosure notice that asks about foundation defects. See Texas foundation disclosure law.[4]

Hiring in Texas

General hiring guidance from the FTC applies; see how to hire a foundation contractor.[5] Check the current requirements with Texas agencies and your city, since licensing and permit rules differ across states and cities, and we have not verified them here.

About earlier Texas content

Earlier versions of this site had city-by-city Texas pages. They have been retired in favor of national guides that apply across regions; see the blog.

Common questions

Why is foundation repair so common in Texas?

Much of the state has expansive clay that moves with moisture, and NRCS documents slab-and-clay interactions in places such as Waco.[1]

Are the ASCE Texas Section guidelines mandatory?

No. By their own terms they are not standards and do not by themselves set the standard of care.[2]

Expansive Clay Soil: Why It Damages Foundations and Where It IsHow swelling and shrinking clay moves houses, how widespread it is, and how to look up your soil.Texas Foundation Disclosure Law: Property Code 5.008 and the Seller's Disclosure NoticeWhat Texas sellers must disclose about foundations, exemptions, timing and the buyer's termination right.Trees and Foundations: How Far Is Far Enough?How trees affect foundations in clay soil, planting distances from three sources, and what to know before removing one.Foundation Problems by Region: Clay, Frost, Karst and High WaterWhich foundation hazards are tied to soil, climate and geology, and where to check your own risk.

Sources

Figures and claims marked with a number come from these sources. Dates are the publication or last-update dates shown by the publisher, where one was shown. Older sources are flagged in the text.

  1. Understanding Soil Risks and Hazards. USDA Natural Resources Conservation Service, National Soil Survey Center; ed. Gary B. Muckel, 2004.Older (2004). Its statistic on expansive soils is attributed in the document to the American Society of Civil Engineers.
  2. Guidelines for the Evaluation and Repair of Residential Foundations, Version 1. Texas Section, American Society of Civil Engineers; adopted October 3, 2002, effective January 1, 2003.Written for Texas conditions and by its own terms not a standard of care. Widely used as a reference for slab and pier-and-beam evaluation. Published in 2002.
  3. Sinkholes (USGS Water Science School). U.S. Geological Survey; page dated September 17, 2026.
  4. Texas Property Code Section 5.008, Seller's Disclosure of Property Condition. State of Texas; reprint in the 2025 code on Justia.A reprint that notes it may not be the current version. Check the official statute.
  5. Hiring a Contractor. Federal Trade Commission, Consumer Information; March 2014.2014 publication. Cancellation-right and licensing rules vary by state.