Exterior cleaning should be matched to the surface and the stain. Tell the contractor whether you need siding, masonry, a deck, paving, or a roof cleaned, and provide any manufacturer care instructions. Ask what result is realistic before agreeing to a package that treats every material the same way.
Choose the Method Before the Equipment
Ask why pressure washing, a lower-pressure method, or another approach suits the surface. Cleaning does not repair decay, failed coatings, damaged joints, or leaks. Older painted surfaces may need lead-safe assessment before disturbance. Request a test area where appearance or material condition makes the result uncertain.
Specify Protection and Runoff
The scope should identify surfaces, products, application method, access, and areas excluded. Ask how the crew will protect openings, electrical fixtures, plants, nearby vehicles, and neighboring property. Discuss where wastewater will go and who checks local discharge requirements. CDC notes that pressure washers can cause serious injury and that fuel-powered equipment creates carbon monoxide risks.
- What staining may remain after safe cleaning?
- Will this method comply with the surface manufacturer’s instructions?
- Who handles damage discovered before or during the work?
Plan for Runoff and Nearby Surfaces
Ask where wash water and loosened material will go, especially near storm drains, gardens, pools, and neighboring property. Local water restrictions or stormwater rules may affect the work; confirm them before scheduling. Discuss freezing temperatures, strong wind, and drying time for any later coating. Protect open joints, electrical equipment, and fragile finishes using a method appropriate to the surface. CDC warns that pressure-washer spray can cause serious injuries and gasoline engines create carbon-monoxide hazards. Keep people and pets outside the work area and require an explanation of the crew's safety arrangements.
Questions Homeowners Ask
Does soft washing mean no chemicals or risk?
No. Ask for the actual product, surface compatibility, precautions, and runoff plan. A service label alone does not describe what will be applied.
Can cleaning make old surfaces look new?
Sometimes staining or deterioration remains. Agree on a realistic target and inspect a sample area where possible instead of accepting a guaranteed restoration claim.
Sources And Local Resources
Official sources checked October 17, 2026. Confirm current requirements with the authority responsible for your property.
- CDC: Pressure Washer SafetyPressure-washer injury, electrical and carbon-monoxide hazards; follow equipment safety instructions.
- FTC: Avoiding Home Improvement ScamsState or county credential checks, insurance, written estimates, scope and contract terms; contract requirements vary by state.