Pressure washing in Beaverton, Oregon cleans concrete driveways, walkways, patios and other hard surfaces, removing the moss, algae and dark staining that build up over the rainy months and can make paths slippery. Call 971-385-8011 to request a quote from Gorilla Property Services.
What can be pressure washed?
Pressure washing is for hard, durable surfaces that can take high-pressure water without damage.
- Concrete driveways and garage aprons
- Sidewalks, walkways and front steps
- Patios and pool decks made of concrete or pavers
- Brick and stone paths and retaining walls
- Parking areas and entrances at commercial properties
Siding, painted wood, stucco and roofs need a soft wash instead. High pressure can strip paint, splinter wood and drive water behind siding. We use the right method for each surface on the property.
Why concrete gets slick and dark in Beaverton
Concrete is porous, and in a climate where it stays wet for much of the year it becomes a home for moss and algae. Shaded driveways, north-facing walkways and steps under trees develop a green or black film over the winter. That film is more than an eyesore: on a wet day it can make a walkway or set of steps slippery underfoot.
Fir needles, leaves and seed pods add tannin stains as they break down on the surface. Over time the whole slab darkens, joints fill with moss and weeds root between pavers.
Pavers and brick
Paver patios and brick paths need a little more care than a plain concrete slab. We adjust the pressure and nozzle to clean the surface without blasting out the joint sand, and we let you know if the joints will need fresh sand afterward.
How we pressure wash
We sweep off loose debris first, then pre-treat areas with heavy moss or algae so the growth is killed rather than only knocked loose. Large flat areas are cleaned with a rotary surface cleaner, which gives an even finish without the stripes a wand can leave on a driveway. Edges, steps and corners are done by wand. Finally the area is rinsed so the debris washes away from the house.
When to book pressure washing
Late spring and summer are the most practical months in Beaverton. Surfaces dry quickly afterward, and cleaning after the rainy season removes the winter’s growth in one go. Some homeowners book a second visit in early fall to clear the slick film from walkways before the rain returns.
| Surface | Common problem here | Typical timing |
|---|---|---|
| Driveway | Dark algae in shaded areas, tannin stains from leaves | Late spring or summer |
| Walkways and steps | Slippery green film | Late spring, and again in early fall if needed |
| Paver patio | Moss and weeds in the joints | Summer, when the joints can dry and be re-sanded |
Commercial properties
Apartment communities, retail centers and office parks have a lot of concrete that people walk on every day. We pressure wash entrances, sidewalks and common areas for commercial properties and can set up recurring visits.
Request a pressure washing quote
Tell us which surfaces you want cleaned and roughly how large they are, and we will get back to you with a quote. Call 971-385-8011 or use the form on this page.

