Ask for the final scope
Keep the invoice, change orders and a simple description of completed work.
Record products and finishes
Paint codes, roofing products, fixtures and equipment models can matter later.
Collect warranties and manuals
Do not leave them scattered across contractor emails.
Update the maintenance plan
New equipment may change filter, service, inspection or warranty schedules.
Safety boundary. This site is for planning, observation and records. Do not improvise electrical, fuel-burning, structural, roof-height or other hazardous work. Follow manufacturer instructions, applicable codes and qualified professional guidance.