In McKinney an engineer isn't optional for a permitted foundation repair. Knowing what the engineer produces, and when, helps you read a quote and keep the right paperwork.
What the city asks the engineer for
- Before work: a letter and drawing(s) showing the location of the affected area or areas, and whether affected plumbing (water, sewer and/or gas) will need testing.
- The design: foundations, new or repaired, must be engineered by a licensed professional registered in Texas.
- After work: a Final Engineer's Report uploaded to the permit in the city's CSS portal.
All three come from the City of McKinney's Foundation Repair Requirements sheet.
Contractor's engineer or your own?
Many repair companies arrange the engineer as part of the job. That can be convenient, but you can also hire an independent engineer to assess the house before you choose a repair. That's worth considering when quotes disagree, or a single quote recommends a large repair.
What an evaluation costs
Published national ranges for a structural engineer's report are $300 to $1,000 (Angi, August 2026) and $500 to $3,000 (HomeGuide, February 2026). Angi also lists a geotechnical soil report at $500 to $3,000. Compare that with HomeGuide's $10,000 to $20,000 range for underpinning with piers.
What a useful report includes
- Floor elevation measurements or another record of how the house has moved
- A plain conclusion: repair now, or monitor
- If repair is recommended, where and what kind
- Notes on drainage, plumbing or other likely causes
- The engineer's name and Texas registration, so you can check it
Keep the paperwork
Keep the engineer's letter, drawings, the permit number and the Final Engineer's Report together. A future buyer or their inspector may ask for them.