Third-party workEstimate or invoice copies
Required to reasonably substantiate damage charges.
Landlord laborTime + hourly rate
The statement must include time spent and the reasonable hourly rate.
Materials already on hand still need support
The statute allows bills, invoices, receipts, vendor price lists or other vendor documents that reasonably document the cost of materials or supplies used in repair or cleaning.
Partial damage should not mean full replacement automatically
RCW 59.18.280 restricts withholding beyond the cost of repairing or replacing the damaged portion when the damage does not encompass the item’s entirety.
Local rules can be stricter. This guide summarizes the statewide Residential Landlord-Tenant Act. City-level protections may add deposit, fee, notice or move-out requirements.