Foundation inspection cost, and what each price actually buys

A foundation inspection costs what its scope costs, and in Texas three different people sell three different scopes under the same name. A licensed home inspector includes a foundation opinion inside the general inspection fee, a repair company may offer its visit free because the visit is how it sells repair, and an engineer charges a separate fee for an evaluation that ends in a sealed opinion.

So the number on each quote is the wrong thing to compare. Compare the document each one produces and who will accept it.

The published price for the engineering version of this work, and what changes it, is on the structural engineer cost page.

The home inspector's opinion is one line of a larger fee

The standard Texas resale contract contemplates inspectors licensed by the Texas Real Estate Commission or otherwise permitted by law, and a TREC licensed inspector works to the commission's standards of practice. Rule 535.228(a) requires that inspector to render a written opinion on the performance of the foundation and to report the visible indications used to reach it, such as binding, out of square or non latching doors.

The same rules set the limits. Rule 535.227(a)(3) describes the inspection as a limited visual survey and states that the inspector is not required to use elevation tools or to perform elevation measurement or calculations. Subsection (d)(7) states that the inspector is not required to recommend or provide engineering services.

That is why the foundation section of a home inspection adds nothing to the fee. It is one item in a survey of the whole house, written to tell a buyer whether to look further rather than to settle the question.

The free visit is paid for by the repair

A free foundation inspection costs the owner nothing because its cost is recovered from the repair it is meant to lead to. It can still be useful, and how to use one well, and what it cannot be used for, is set out in free foundation inspection versus an engineer.

The engineer's fee follows the level of investigation

The Texas Section of the American Society of Civil Engineers publishes guidelines for evaluating and repairing residential foundations. Version 3 was adopted in 2022, and section 3.1 defines three levels of investigation. Those levels describe, better than any price list, what an engineer's fee is paying for.

• Level A, first impressions: interviews, a review of existing documents such as drawings, soil reports and prior repairs, and a visual walk through. The guidelines say a written report at this level shall be clearly identified as a report of first impressions.
• Level B: everything in Level A, plus relative floor elevations across the foundation, a scaled elevation drawing, and reported overall deflection, local deflection and tilt measured against tolerances.
• Level C: everything in Level B, plus the testing the engineer considers appropriate, which the guidelines list as soil sampling, plumbing testing, materials testing, a reinforcing steel survey and post tensioning cable testing.

Ask which level a quote is for before comparing it with another.

Those levels explain why two engineers' quotes for the same house can differ: they may be quoting different levels. A Level A visit is a walk through and a conversation. A Level B evaluation adds a measured survey of the whole floor and the time to reduce and read it. Level C adds work such as a plumbing test or a soil boring, each of which carries its own charge.

Section 3.1 also says the engineer should personally visit the site and be in responsible charge of the investigation. The scope 254 Engineering describes for a foundation evaluation, measured elevations included, is on the foundation inspection page.

Costs that sit outside the inspection fee

A foundation question can produce charges beyond the evaluation itself. Knowing them in advance avoids treating the first quote as the whole cost.

• A plumbing test. The guidelines list leaking plumbing among the factors that contribute to foundation movement, and section 7.6 says water and sanitary lines should be tested for leaks where a repair includes jacking or lifting.
• A site specific soil boring. Section 7.4.2 says geotechnical information for a major or comprehensive repair should come from a site specific boring and testing program.
• Repair documents. Section 7.4.1 lists what remediation documents contain, from a plan view and details to the required post repair elevation survey. That is a separate engagement from the evaluation, described on the repair specification page.
• A city permit. Some Texas cities require one for foundation repair. The City of Denton states that all foundation repairs require a permit, asks for a repair letter and plan signed and sealed by a Texas registered engineer, and lists a fee of $100.
• Post repair verification. Section 7.7 says floor elevations should be measured by the engineer or the engineer's representative after the repair, and section 7.8 says the engineer should provide a letter of substantial completion.

Who pays in a Texas sale

Rule 537.28 makes TREC form 20-18 the contract for a resale of residential property. Its paragraph 7A lets the buyer have the property inspected by inspectors the buyer selects who are licensed by TREC or otherwise permitted by law to make inspections, and it requires the seller to turn on existing utilities at the seller's expense.

The buyer therefore chooses and engages the inspectors. Anything beyond that about who bears their cost is a matter for the parties and their agents to put in writing.

Timing matters as much as price. The contract's termination option gives the buyer an unrestricted right to terminate by notice within the time the contract sets, and the option fee is not refunded. An engineer's evaluation needs access to the house and time to reduce the measurements, so it has to be booked early enough to land inside that window.

What a lender will accept changes the comparison

Fannie Mae's Selling Guide, at B4-1.3-06, addresses evidence of settlement noted in an appraisal. The lender must either provide satisfactory evidence that the condition was corrected, or submit a professionally prepared report, based on an inspection of the property, indicating that the condition does not pose any threat of structural damage to the improvements.

A repair company's proposal is not written to answer that question, and a home inspection is not required to. An engineer's report can be addressed to it directly. Where a lender's condition is the reason for the inspection, the cheapest inspection is the one that satisfies the condition the first time.

For a buyer holding an inspection report with a foundation comment and an option period running, the next step is a written question and a scope. The foundation inspection page sets out what the evaluation covers, and the published price list states the fee before anyone visits.