What affects pressure washing cost in Arizona?
Square footage is useful, but it is only one part of a reliable exterior-cleaning estimate.
The five biggest pricing factors
Area, surface material, condition, access, and treatment needs drive most estimates. A simple open driveway is different from a garage with absorbed oil, a roof with complex access, or a commercial site that must remain open during service.
Why specialty stains cost more
Oil, grease, rust, efflorescence, paint, gum, and hard-water deposits require different chemistry, heat, dwell time, testing, and sometimes repeat treatment. Deeply absorbed stains may improve without disappearing completely.
When an on-site quote is appropriate
Large homes, commercial facilities, multi-location portfolios, industrial work, difficult access, wastewater requirements, and unusual surfaces deserve an inspection. The goal is to confirm the scope before work—not surprise the customer afterward.