How should a handyman document pre-existing damage before beginning work?

Direct answer: Document pre-existing damage by taking timestamped before photos, noting existing defects in writing, and getting acknowledgement before you start. This protects you if the client later blames you for damage that was already there.

Practical steps

• Take photos: Timestamp before photos of existing conditions.
• Note defects: Document in writing before starting.
• Get acknowledgement: Have client confirm existing issues.