Gravel Driveway & Landscape Rock Cleaning in Oregon City
Moss, algae, and black stains removed with a soak method instead of pressure, so your gravel stays where it belongs. Oregon City Pressure Washing protects loose rock, plants, and surrounding property.

Yes, your gravel can actually be cleaned
Most people figure dirty, mossy gravel is a lost cause, and that the only fix is raking it out and paying for new rock. It isn't. Our soak method kills the moss, algae, and grime right where the rock sits, with no blasting and no hauling, so your gravel goes back to looking like the day it was laid. Most exterior cleaning companies don't even offer it. We do.
Why Gravel Turns Green and Black
Gravel stays damp through the Pacific Northwest rainy season, while shade keeps it from drying. Green algae, moss, black staining, and organic debris settle between stones. Raking or pressure washing moves the growth without killing it, so it returns quickly.

Our No-Pressure Soak Method
Professional soft washing uses diluted sodium hypochlorite with a surfactant so the solution spreads, kills algae, moss, and mildew, and gets dwell time to do the cleaning instead of high-pressure water. We adjust the mix for each rock type, growth level, and nearby planting.
How It Works: Step by Step
1. Inspect the rock, growth, slope, nearby plants, drains, and water features; test colored or decorative rock. 2. Pre-wet and protect plants, grass, soil, beds, ponds, and storm drains. 3. Apply the solution evenly at low pressure. 4. Allow dwell time. 5. Rinse plants and edges, with only a gentle rinse of gravel if needed. 6. Dead growth fades over the next several days.
Why Soak-Clean Your Gravel
- Safety matters: we pre-wet and rinse plants, cover sensitive landscaping when needed, control runoff away from beds, ponds, and storm drains, and keep pets and children off the treated area until it is dry and rinsed. Do not use bleach concentrate as a DIY project.
Gravel Cleaning FAQ
Why don't you pressure wash gravel?
High pressure throws loose rock into lawns, beds, siding, and cars, washes away the fines that hold a driveway together, and can leave growth alive. Our soak method kills algae and moss without moving your gravel.
How long until I see results?
You will usually see improvement the same day. The full result develops over several days as dead growth fades and rain rinses it away; heavy black staining or lichen can take a few weeks.
Is it safe for my plants and lawn?
We wet plants first, cover them when needed, control runoff, and rinse afterward. A small risk to very sensitive plants cannot be completely ruled out, so we inspect and plan with you.
When can pets and kids use the area again?
Once the treated area has dried and been rinsed, usually later the same day. We will give you a specific time before we leave.
Will it change the color of my rock?
Most natural gravel and rock simply looks cleaner. Dyed or decorative rock can lighten, so we test a small spot first.
Get a Free Gravel Cleaning Quote
Ready for a cleaner, safer driveway or path without rock all over your lawn? Oregon City Pressure Washing offers careful gravel and landscape rock cleaning with a free quote.

