Timber retaining walls: How soft washing restores wood safely

Before/After a softwash on wooden retaining walls

Timber retaining walls take a beating in Metro Vancouver’s wet climate. Shade, moisture, and organic debris quickly turn the wood black and slippery — exactly what you see in the “before” photo above.

Why Timber Walls Turn Black

• Algae and mildew thrive in damp, shaded areas

• Organic buildup sits on the surface and stains the wood

• Weathering + moisture = dark streaks and slippery surfaces

Many home owners assume the black spots they see is mould and rot, and that they need to replace their wall. The good news is, it isn’t!
Most of this is surface-level growth, not permanent damage.

Why We Don’t Use High Pressure

Traditional pressure washing can:

• Gouge or splinter the wood

• Force water deep into the timber (hello, rot)

• Strip away protective coatings

That’s why we use soft washing instead.

How Soft Washing Works

1. Light Rinse & Assessment: Removes loose debris and shows where the heaviest buildup is.

2. Apply Eco-Friendly Cleaning Solution: The solution breaks down algae, mildew, and dark staining so we don’t need harsh pressure.

3. Controlled Low-Pressure Rinse: Washes everything away gently, without damaging the wood grain.

4. Targeted Touch-Ups: Any stubborn areas get a second application for an even finish.

Result: the natural wood colour returns, the wall looks new again, and no damage is done — just like in the “after” photo.

How Long Does It Last?

Typically 6–18 months, depending on shade, moisture, and vegetation around the wall.

Why Homeowners Love This Service

• Makes landscaping look instantly refreshed

• Prevents slippery surfaces

• Helps slow down decay

• Huge visual upgrade for garden beds and yards

Need Your Retaining Wall Cleaned?

Briteworx soft washes timber walls, decks, fences, and more across Metro Vancouver & the Fraser Valley. Link in bio to reach us by phone or our website’s contact form.

📞 604-953-9899

🌐 briteworx.ca