SERVICE GUIDE
Foundation repair.
Understand the assessment, repair scope and questions to ask before choosing a foundation contractor.
Identify which part needs repair.
Foundation repair can concern masonry or concrete walls, footings and piers beneath a home. Joist and beam repairs concern the floor framing they support. A sloping floor or sticking door can involve either system, so ask the assessor to identify the affected components before comparing repair methods. For floor-framing work, see structural and joist repair; the full structural repair guide explains the wider system.
A foundation proposal should connect documented findings to a property-specific plan, with clear responsibilities for assessment, design and installation.
BEFORE THE ASSESSMENT
Bring a record of what changed.
- Note where you see cracks, floor changes or doors that bind, and when you first noticed them.
- Gather dated photos, previous reports, repair drawings and any history of leaks or nearby work.
- Ask which areas were accessible and which remain unexamined.
Use our inspection preparation guide. Do not enter an unsafe crawl space, dig beside footings or adjust supports to investigate. Keep people away from apparent instability and seek urgent professional assessment; use emergency services for immediate danger.
Ask what the findings actually establish.
A crack’s size or a photograph alone cannot establish the cause, rate of movement or appropriate repair. HUD’s Residential Rehabilitation Inspection Guide explains that masonry cracks have several possible causes and should be evaluated in context. Ask for marked photos or a plan locating the findings, the basis for the diagnosis and any further investigation needed. If monitoring is proposed, ask who reviews the results and what changes require action.
Clarify when engineering input is needed.
HUD advises structural-engineering input for masonry problems; suspected uneven settlement may also require a soils specialist. Ask whether the visit is a contractor estimate, a condition inspection or an engineering assessment, and who will specify the repair. EPA recommends a structural engineer or another appropriately qualified professional when mold is suspected of affecting structural integrity. The property’s findings and local requirements determine the needed expertise.
Compare a foundation-specific written scope.
- Location and purpose: Which wall, footing or pier is included, and what evidence supports the proposed work?
- Design and quantities: Who specifies the repair, which drawings or details will be followed, and what materials and quantities are included?
- Expected result: Is the goal stabilization, a specified movement correction or water control? Ask how completion will be checked and what remains unresolved.
- Site responsibilities: Who handles excavation, professional temporary support, utility protection, access, debris and restoration?
- Permits and changes: Who checks requirements with the building department for the property? How will concealed damage and revised costs be approved?
- Closeout and warranty: Request final photos, applicable inspection records, written exclusions, maintenance duties and any follow-up measurements.
Compare these answers alongside price in the crawl-space quote guide and worksheet. Confirm whether engineering, permits and restoration are included or separately priced.
Separate moisture findings from structural findings.
NC State Extension notes that mold on joists or beams does not establish that wood decay will occur. Ask for separate findings about water entry, wood condition and foundation movement, then have the relevant professionals coordinate the work and any inspection needed before surfaces are covered.
Reviewed October 5, 2026. Homeowner planning guidance; a property-specific assessment determines the repair. This page provides no structural design, lifting instructions or safety certification.
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