Geotechnical report vs. foundation repair: what you need

If you haven't built yet

A geotechnical report ($1,000-$5,000) before design tells an engineer exactly what foundation type a specific lot needs - a post-tension slab, drilled piers, or a standard footing - rather than guessing from the county average. That report is what a permit application and a structural engineer actually require; this site's county reading is only a reason to expect one result or another.

If you're already seeing cracks

A geotechnical report is still the first step, not a foundation-repair contractor's estimate - a contractor is selling a repair, an independent geotechnical engineer is diagnosing the cause. Some foundation-repair companies offer a free inspection as a sales lead; that's worth taking, but it's not the same as an independent report if real money is about to be spent.

What a repair actually involves

Foundation repair for shrink-swell damage typically means underpinning (piers driven or drilled to stable soil below the active zone) rather than simply patching cracks, which only hides the symptom. Typical cost runs $5,000-$15,000, scaling with how much of the foundation needs support and how deep stable soil sits.

The honest bottom line

The report is cheap insurance against the repair being wrong, oversized, or unnecessary. Skipping it to save $2,700 on a decision that could cost $10,000 or more is the false economy this whole site exists to argue against.

Where to go next

Real counties this plays out on: Orleans Parish, LA, Coos County, OR, Monroe County, FL.

Where this data comes from, and its real limits · The warning signs of expansive-clay damage, explained