How to choose a foundation repair company

1. Start with the foundation type

Do you have a slab foundation or a pier and beam foundation? The pier systems, the repair method and the crew's experience differ between the two. Start with companies that state your foundation type in their own words, and confirm the scope before you book.

2. Verify the credential yourself

Texas has no state foundation repair license as such, so there is no state license number to check for this trade. Ask instead what city permits apply to your job, who arranges them, and whether an independent structural engineer reviews the plan. None of the 19 companies in this guide publishes a license number on its own website, so for every company here the credential is claim-only or not published until you verify the permits and the engineering review yourself. A claim on a website is not a verified credential, and a review-site badge is not a credential.

3. Ask how piers are counted and how deep they go

Ask the company to explain how it decides the pier type, the pier count and the target depth, and what happens to the price if more piers or greater depth are needed once work starts. A quote that does not answer that question is not comparable with one that does.

4. Ask about elevation measurements and the plumbing test

Ask whether the company takes whole-house elevation measurements before quoting, and whether it tests the under-slab plumbing after lifting. Both are named on company sites in this guide; ask whether they are included in your quote.

5. Ask about drainage and roots

Ask whether the quote includes drainage correction, root barriers or foundation watering, and whether poor drainage or tree roots contributed to the problem. A pier job that ignores the water source may not hold.

6. Ask about crew, timeline and warranty

Ask who does the work — the company's own crew or subcontractors — how long the job takes, and what the warranty covers, for how long, whether it transfers to a new owner, and what maintenance it requires. Get the warranty terms in writing.

7. Service-area companies

A service-area company serves North Dallas but either publishes an office outside the area or publishes no street address on its own site. That is not a red flag on its own, but confirm response time, who comes to your home, and whether the crew is in-house or subcontracted before you book.

8. Get it in writing before work starts

Scope (pier type and count, slab or pier and beam work, drainage, plumbing test), installer, timeline, engineering review, permits, warranty and total price should all be in one written quote. Verbal promises about price, timeline or results are hard to enforce later.