Roofs are not driveway jobs
Roof cleaning should not be framed as high-pressure washing. Asphalt shingles, roof age, pitch, black streaks, moss, nearby plants, and runoff all need a roof-appropriate conversation before any work is scheduled.
Siding needs the right angle and method
Vinyl, fiber-cement, painted, older, and loose siding can be damaged by careless pressure or the wrong spray angle. House washing should be described as surface-appropriate washing, not blasting.
Do not spray upward into siding laps, vents, windows, or trim.
Mention oxidation, loose panels, old paint, cameras, lights, outlets, and plant beds before the quote.
A siding-cleaning estimate should ask what the surface is made of before promising a method.
Decks and fences depend on material
Wood can splinter or scar, composite materials may have manufacturer-sensitive concerns, and older paint or stain can behave unpredictably. Deck and fence cleaning should start with material and condition, not pressure.
Pavers need joint-sand awareness
Paver patios, walkways, and driveways can often be cleaned, but joint sand, weeds, loose edges, uneven spots, drainage, and future sealing plans should be discussed first.
Read the paver re-sanding guideConcrete is tougher, but not magic
Concrete can usually handle more pressure than siding or roofing, but age, cracks, surface finish, oil, rust, salt, and old stains still matter. Results should be discussed as improvement rather than guaranteed perfection.
Related questions
Can pressure washing damage a house?
Yes, if the wrong pressure, angle, or method is used on siding, trim, windows, vents, paint, or older materials. That is why surface type matters.
What should I mention before scheduling?
Mention the surface, age if known, visible staining, delicate areas, nearby plants, pets, gates, water access, and whether photos are available.
Does this mean pressure washing is bad?
No. It means pressure belongs on the right surfaces with the right expectations. Delicate surfaces need a more careful cleaning plan.