Identify roof material and condition
Share roof type, age if known, visible damage, pitch, height, access, gutters, nearby vegetation and drainage. Ask whether the provider will inspect from a safe location and how fragile or deteriorated materials are handled. Cleaning is not roof repair, leak diagnosis or structural assessment.
Ask about method and surface compatibility
Request the proposed method, products, pressure level if any, runoff controls and manufacturer guidance. High pressure, chemicals and walking on roofs can damage materials or create hazards; no single technique suits every roof. Ask how nearby plants, tanks, paths and neighbouring property are protected.
Verify access capability and site controls
Confirm worker competence, access equipment, fall-prevention controls, rescue planning, public protection and current insurance relevant to the exact job. Check applicable state or territory work health and safety requirements. Do not climb onto the roof or assume a general cleaning credential authorises elevated work.
Compare scope and written terms
Confirm areas included, debris handling, gutters, exclusions, weather limits, water supply, price basis and what happens if defects are found. Roof repairs, restoration, pest work and hazardous-material handling need separate specialists.
