The answer
Capture safe wide and close views of the exterior, source, every affected room, water lines, openings, debris, damaged and adjacent undamaged materials, contents, model and serial numbers, meters, weather, notices and access conditions before change. Keep originals, event time, discovery, actions, contacts, claim references, mitigation logs, moisture or specialist findings, inventories, estimates, invoices, receipts, permits, inspections, warranties and settlement correspondence.
Calgary-specific context
A useful file proves chronology, cause questions, original condition, work completed and money spent, not just the worst-looking damage.
What to do next
Use the downloadable evidence board and preserve private records in the insurer's or professional's approved secure channel.
Verify before relying
Official sources for this topic
These sources explain the rules and records relevant to this topic. Check the current requirements for your property.
Check the current information at the linked source. Ask the appropriate professional how it applies to your property.
Important
This is general information, not legal advice. Speak with a qualified lawyer about your specific situation.