A foundation inspection tells you whether the walls, footings and supports under your house are doing their job, and if not, why. HomeGuide lists common reasons people schedule one: buying or selling a home, routine maintenance, signs of foundation trouble, a renovation, or damage after a storm [1].
What an inspection checks
HomeGuide's checklist includes [1]:
- A visual check for cracks, gaps and other damage
- Measurements to find settling or heaving
- Drainage, downspouts and signs of moisture in the basement or crawl space
- Beams, piers and posts
- Soil conditions
- Exterior brick or siding pulling away from the foundation
Ask for the findings in writing, with measurements and photos, so you can compare repair quotes against the same baseline.
Structural engineer foundation inspection or contractor estimate?
HomeGuide says structural engineers, home inspectors and foundation repair contractors all perform foundation inspections [1]. They aren't the same service:
- Repair contractor. Often free. HomeGuide cautions that companies offering free inspections may be more likely to recommend repairs [1]. You get an estimate for their method.
- Structural engineer. Paid. The report states whether the structure is sound and what repairs are needed [2]. Angi says an engineer's report on a bowing wall gives you an objective reference when comparing bids [3].
- Home inspector. Part of a general pre-purchase inspection. Ask whether the inspector will give an opinion on structural movement or refer you to an engineer.
Inspection cost
National figures, not local quotes:
| Type | Published range | Source |
|---|---|---|
| Foundation inspection | $300 to $750 (national average $550) [1] | HomeGuide, Feb 5, 2026 |
| Finished basement | $500 to $800 [1] | HomeGuide, Feb 5, 2026 |
| Unfinished basement | $350 to $700 [1] | HomeGuide, Feb 5, 2026 |
| Structural engineer, foundation | $300 to $750 [2] | HomeGuide, Dec 1, 2025 |
| Engineer report, bowing wall | $250 to $500 [3] | Angi, Oct 1, 2026 |
HomeGuide notes finished basements cost more to inspect because walls and flooring are in the way [1]. For repair prices, see the foundation repair cost guide.
Buying or selling a home
Wisconsin's Real Estate Condition Report asks sellers whether they know of basement or foundation defects, including cracks, seepage and bulges, and separately asks about structural defects such as movement or shifting in walls [4]. If you're selling after a repair, keep the engineer's report, the contract, the warranty and the permit record. If you're buying, ask the seller for the same papers.
HomeGuide also suggests checking with your building officials or lender about what an engineer's report needs to include [2].
FAQ
How long does an inspection take?
HomeGuide puts a structural engineer's full home inspection at 1.5 to 3 hours, depending on the size of the house [2].
Can I get a no-cost inspection from a repair company instead?
Yes. HomeGuide notes some foundation repair companies offer one [1]. It's a fine starting point. Get a second opinion before a large job.
What should I bring up during the inspection?
Your photos and dates of any cracks, doors that started sticking, and anything you've noticed after heavy rain or spring thaw.
Get quotes
Tell us your town and what prompted the inspection, and a local contractor can contact you to schedule a visit and estimate. Request a free quote.
We're a referral service, not a contractor, and independent contractors may pay us for referrals.
Sources
- HomeGuide, "How Much Does a Foundation Inspection Cost?," Feb 5, 2026. https://homeguide.com/costs/foundation-inspection-cost. Supports: reasons to schedule; checklist; who inspects; free inspections caution; $300 to $750, average $550; finished basement $500 to $800; unfinished $350 to $700; finished basements take longer.
- HomeGuide, "How Much Does a Structural Engineer Cost?," Dec 1, 2025. https://homeguide.com/costs/structural-engineer-cost. Supports: report contents; foundation inspection $300 to $750; contact building officials or lenders; full home inspection 1.5 to 3 hours.
- Angi, "How Much Does Bowing Basement Wall Repair Cost? [2026 Data]," updated Oct 1, 2026. https://www.angi.com/articles/typical-price-beams-support-bowing-wall.htm. Supports: engineer report $250 to $500; objective reference for comparing bids.
- Wis. Stat. 709.03, Real Estate Condition Report, items B7 and B8. https://docs.legis.wisconsin.gov/document/statutes/709.03. Supports: B7 basement or foundation defects (cracks, seepage, bulges); B8 structural defects incl. movement, shifting in walls.