Free PDF guide
Basement & Foundation Red Flag Guide: What $500 Buys You
What a structural engineer costs to tell you if a crack is cosmetic or a $30,000 problem, before you sign.
What's inside
- ✓A crack-severity table — hairline to bowing walls — with what each type means and whether it's monitor-and-move-on or walk-away
- ✓Seven water-intrusion signs (efflorescence, rust staining, high-water marks) with cost ranges from $800 to $30,000
- ✓Four questions to ask about any finished basement, since drywall and carpet can hide water damage instead of proving its absence
3 key takeaways
What's the single most important number in this guide?
$500–$1,500 — what a structural engineer costs to tell you if a crack is cosmetic or catastrophic. It turns a guess into a fact before you sign.
What does a high-water mark on a basement wall actually mean?
Flooding has occurred, and the mark shows how high. Cost range to remediate is $10,000–$30,000 — ask for written disclosure.
How many flags should make you walk away or reprice the offer?
Two or more. One flag means call a structural engineer before you offer; two or more means walk away or price the repair in — the diagnostic is $500–$1,500, the repair can run $30,000.
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