Are foundation repair companies structural engineers? — Answered for Houston, TX

A foundation repair contractor measures, prices and performs work. A licensed structural engineer issues a stamped opinion and does not sell the repair. Some contractors employ or retain engineers; the roles stay separate even then.

What gets measured on a Houston property either way

Whoever holds the instrument, the readings are the same. They are relative floor elevations across the structure, and the soil beneath it. Here that soil runs to 51% clay in the mapped units, dominated by Clodine-Urban land complex, 0 to 1 percent slopes. An engineer reads them against a standard and signs. A contractor reads them against a repair method and quotes. The numbers underneath do not change.

Who signs the document a lender will accept

Two things actually separate them: who is licensed to issue an opinion, and who gets paid when the answer is expensive. An engineer’s stamp is a licensed professional judgment from someone earning nothing from the size of the repair. The contractor’s document pairs readings with an offer to sell the work those readings imply. Both can be entirely honest. They are not interchangeable documents.

Which one you need is usually decided by somebody else, and in Houston there are several somebodies. The city is an incorporated municipality with its own government and building department, separate from Harris County, and beyond that sit your lender, your insurer and your buyer. Each asks for its own document and each is entitled to. Where a request names an engineer’s letter, no quantity of contractor detail will satisfy it, so get the requirement in writing before paying for either.

Where a contractor employs or retains an engineer, ask two questions: whose name appears on the paper, and did that engineer come to this address. Desk review of a proposal and a site visit to your house are not the same service, and only one produces an opinion about your slab. This site is neither contractor nor engineer. It reports public-record measurements and hands inquiries on to firms that do the work, and having nothing to stamp and nothing to install is what lets it set the difference out without a stake in your answer.

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