Deck material check
Wood, composite, stained, and painted decks need different expectations.
Deck cleaning should not start with the same pressure conversation as concrete. A useful estimate should name the material, age, coating condition, stairs, railings, shade, and nearby furniture or plant beds before anyone promises a cleaning result.
Wood can fuzz, splinter, or show old coating failure if it is cleaned too aggressively.
Composite decking can often be cleaned, but manufacturer-sensitive limits and surface condition still matter.
Painted, stained, or weathered boards may improve without becoming stain-ready or looking new.
Photos of boards, railings, stairs, and the dirtiest shaded area make the quote easier to scope.