Most of this trade offers a warranty on the support that was installed. That is not the same as a promise the house will stay level, and reading which one is on offer is the single most useful thing you can do with the paperwork.
Why the drainage clause matters particularly in Houston
With up to 51% clay and soils the survey rates as Somewhat poorly drained, moisture management is not a cosmetic add-on here — it is the mechanism. That is exactly why warranty documents in clay country often make the homeowner responsible for maintaining drainage, and why a warranty read only at the point of a claim can turn out to have been conditional all along.
Two clauses worth reading before the work starts
What is usually on offer is a promise about hardware. Should a pier settle, the firm returns to adjust or replace that pier. This is a genuine commitment and worth having, and it is not a commitment that the rest of the house will stay where it is. Nearly all the disappointment in this trade lives in the space between those two sentences.
Two things tell a strong document from a thin one. Does it follow the house to the next owner, and which of your own actions cancels it? Transferability is what turns paper into an asset when the house changes hands. In a city holding 1,023,112 housing units, the next owner is never a hypothetical. The canceling clauses usually concern drainage, landscaping and plumbing alterations. On this ground that is a live condition, not boilerplate. The Harris County mapping describes the largest mapped soil unit as somewhat poorly drained, and the 10-year 24-hour rainfall for this location is 8.7 in. Any clause requiring you to keep grading and gutters in order will be tested by weather, repeatedly.
Ask as well who stands behind it. The paper is only as good as the company obliged to honor it, and firms here come and go. So a long term from a new business and a short one from an old business are not directly comparable. This site publishes public-record figures and performs no work, so it holds no warranty of its own.
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