Engineer's Report vs Free Foundation Inspection: What's the Difference?

Three kinds of foundation "inspection"

People use the word "inspection" for three very different things:

• A repair company's free inspection. A salesperson or estimator from a foundation repair company visits, usually takes floor readings, and gives you a proposal. It costs you nothing because it is how the company wins work.
• A home inspector's report. Part of a home purchase, done by an inspector licensed by the Texas Real Estate Commission (TREC). It covers the whole house, including the foundation, at a visual level.
• An independent structural engineer's report. A paid evaluation by a Texas-licensed professional engineer who is not tied to a repair company, resulting in a sealed written opinion.

All three can be useful. They aren't interchangeable.

What Texas rules say about diagnosing a foundation

In February 2018 the state engineering board, now called the Texas Board of Professional Engineers and Land Surveyors (TBPELS), answered a question about home inspectors and foundations. Its advisory opinion 43 says:

"Analyzing the cause of a condition, recommendations for repair, or providing any other expert engineering opinion associated with a foundation ... would be considered the practice of engineering ... and could warrant disciplinary action ... if conducted by an individual unlicensed as a Professional Engineer (PE)."

The same opinion explains where a home inspector fits. Under TREC's standards, an inspection is "a limited visual survey and basic performance evaluation," and the inspector is not required to determine "the cause or source of a condition" or "the cause or effect of deficiencies." A deficiency on an inspection report is meant to flag "visible conditions or symptoms ... that may warrant further evaluation by another qualified service professional." The board concluded that a TREC inspector following those standards is not practicing engineering.

Put simply: a home inspector notices, an engineer diagnoses. Texas does not license foundation repair companies at all (licensing bills failed in 2011 and 2013), so a repair company's own estimate is a sales proposal, not an engineering finding. When a company's estimator tells you what is causing movement and how many piers you need, it's worth asking whether a licensed engineer has actually reviewed your house.

Why the free inspection isn't neutral

Most foundation repair companies are honest, and many estimators have years of experience. But the free visit has a built-in incentive: the company is paid when you agree to a repair.

A Collin County example shows how far opinions can differ. In 2014, NBC 5 reported on an Anna family whose builder's contracted foundation company twice called their cracks "cosmetic issues resulting from seasonal movement" and recommended no repairs. Three other foundation companies recommended thousands of dollars of repairs, and a UT Arlington civil engineering professor who reviewed the evidence said, "It's not cosmetic." Each party had its own reason to see the house a particular way.

Engineers can be pulled into the same incentive. In a 2017 request to the state board, a Dallas engineer described engineers "working on behalf of, or ... recommended by, the Foundation company who directly benefits" from sealing its pier plan without proper analysis of the slab. The board declined to issue an opinion but said it will investigate substantiated complaints against engineers practicing incompetently.

What an independent engineer's report gives you

• An opinion on whether repair is needed now. Sometimes the answer is to fix drainage, test the plumbing and monitor. A repair company is less likely to lead with that.
• A design every company can bid on. When bidders price the same pier plan, you can compare prices directly. See the cost guide.
• Someone on your side at the end. Collin County cities tie the permit to an engineer. McKinney requires an engineer's letter and drawings for the permit and a Final Engineer's Report to close it (McKinney guidelines); Frisco requires an engineer's inspection report at completion (Frisco requirements); Prosper requires a second sealed engineer letter at inspection (Prosper FAQ). If you hired the engineer, that final check answers to you.

HomeAdvisor's cost guide (updated June 20, 2026) puts a structural engineer's inspection at $340 to $780 nationally. The engineer evaluation page covers how to find one and check the license on the TBPELS PE roster.

Why it matters for resale and warranties

Selling

Texas Property Code section 5.008 sets out the seller's disclosure notice most home sellers must give buyers. It asks whether the seller knows of defects in the "Foundation/Slab(s)" and of conditions including "Previous Structural or Roof Repair," "Improper Drainage" and "Settling" or soil movement (Property Code chapter 5). If you've had foundation work, expect to disclose it, and expect the buyer's side to ask what was done and who signed off.

An independent engineer's report before the repair, the permit, and the engineer's final letter afterward tell a clear story. A company's sales proposal and an invoice tell a thinner one.

Warranties

Lifetime and transferable warranties are common selling points. Terms vary, and some warranties cover only adjustment of the piers the company installed rather than the whole foundation. Read the terms, and see warranties and resale. If you ever need to make a claim, an engineer's before and after records help show what was designed and what was built.

Once you have an engineer's report, this guide can pass your request to a local foundation repair company for a bid. See how it works.