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 San Antonio 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 54% clay in the mapped units, dominated by Eckrant cobbly clay, 1 to 8 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.
The reasoning behind that
The practical difference is independence and licensure. An engineer’s stamped letter is a professional opinion issued by someone with no financial interest in the repair being large. A contractor’s report is a measurement and a proposal from the party that would carry out the work. Both can be perfectly honest, and they are not interchangeable documents. Which you need is usually decided by someone else. Lenders, insurers and buyers often ask for an engineer’s letter by name. A contractor’s report will not close that request, however thorough it is. Ask for the requirement in writing before buying either. Where a contractor retains an engineer, ask whose name is on the document and whether that engineer inspected the property. A design reviewed by an engineer and a property inspected by one are different things.
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