Underpinning & foundation strengthening · Checklists

Checklist: Monitoring basement cracks

Use this checklist before you decide

Updated 2026-08-30

Short answer

Use the checklist to document crack width and pattern and changes after rain. The more specific the documentation, the easier it is to choose the next investigation or solution step.

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Sources and evidence

Method & sources →

Source types stay separate: technical and authority-adjacent sources support rules and risk topics, while project sources document practical experience.

1 technical/authority sourcesUpdated 2026-08-30

□crack width and pattern

□changes after rain

□load-bearing support and stability

□future inspection and maintenance

Not every point applies to every building. Structural and regulated work can require local professionals and approvals.

Assessment

Underpinning & foundation strengthening

Foundation work is controlled by load paths and sequence. Existing footing depth, soil and groundwater conditions, crack patterns and the size of each working section can change what is safe to excavate or underpin.

Evidence & moderation

Editorial policy →

Eurocode 7: Geotechnical designEuropean Commission Joint Research Centre↗

Guides

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Continue in the same topic

Related guides, problems, checklists, cases and technical terms from the same knowledge area.

GuideMonitoring basement cracks→GuideBasement contractor scope and handover→GuideBasement underpinning→ProblemCracks or movement→ProblemLow basement / lower the floor→ScenarioA basement crack is getting wider→ScenarioCracks appear after basement excavation→ChecklistUnderpinning planning checklist→CaseAmager, Denmark – excavation, sectional underpinning and complete basement renovation→CaseSjellonlund, Denmark – floor lowering and underpinning as a partial contract→

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