October 21, 2026
Pressure Washing in LA: Surfaces, Method, and Cost
What a pressure washing visit actually covers
Most residential jobs in LA County come down to four surfaces: concrete (driveways, walkways, patios), exterior walls, roofs, and fences or decks. Each one needs a different amount of pressure, and that difference is the whole job. Concrete takes high pressure with a surface cleaner. Stucco and painted walls take a wide fan at low pressure. Roofs and older wood should be soft washed: cleaning solution does the work, and the rinse just carries it away.
Why method matters more than machine size
High pressure on the wrong surface does not clean faster, it damages. Etched concrete holds dirt faster afterward, and a forced-open stucco crack becomes a stucco repair. A crew that quotes per surface is telling you the method changes per surface. That is also why a same-price-for-everything offer is a warning sign: the price of a pressure washing job depends on which of your surfaces need soft wash and which can take full pressure.
What drives the price up or down
Square footage is the baseline, but the adjustments are predictable. Oil stains on a driveway need pre-treatment and usually a second pass. Two stories add setup time. Heavy mold or mildew on a north-facing wall takes solution dwell time, not just pressure. The published ranges scale by city: compare Alhambra, Burbank, Inglewood, Norwalk, or Whittier before booking, and see how the pricing works for how the ranges are built.
How to prep the area before the crew arrives
Clear vehicles off the driveway and close windows on the side being washed. Sweep loose yard debris first: clippings and leaves belong in the green bin, not down the storm drain, and the green waste guide covers which piles go where. If you have potted plants against the wall, move them back a few feet. A crew will handle the rest, including rinsing plants that caught spray drift.
Timing through the LA year
Pressure washing is seasonal in a quiet way. Late summer, dust and fire ash build up on everything horizontal. After the first rains, algae shows up on shaded concrete and north walls. Spring is pollen on cars and siding. None of these are emergencies, but booking in the dry season means the surface dries fast and the result lasts longer. If you are also clearing out a garage or yard, the junk crew and the wash crew can share a visit; the junk removal vs dumpster comparison covers what that first step looks like.