Deck & fence cleaning

Decks and fences are meant to be seen — but in the Pacific Northwest, it doesn’t take long for moss, mildew, algae, and grime to take hold. Whether your surfaces are wood, vinyl, or composite, they need regular cleaning to stay beautiful, safe, and protected from long-term damage. At Snohomish Pressure Washing, we clean decks and fences with the right blend of pressure, technique, and surface-safe solutions to lift buildup without stripping finishes or damaging the material.

We carefully match our method to the surface type and condition, ensuring a deep clean without harm. Whether you’re refreshing for summer use or prepping for sealing or staining, we’ll help your deck or fence look its best again.

Bigfoot-tough cleaning. Small town service.

Why clean your deck or fence?

Decks and fences are exposed to weather year-round — and they wear it. Cleaning is the first step in preserving their appearance and function.

Restore Natural Beauty
Moss, mildew, and dirt can dull wood and composite materials. Cleaning reveals the surface underneath without stripping or damage.

Prepare for Staining or Sealing
A proper cleaning is essential before applying any stain, sealant, or paint. We prep the surface so it holds up longer.

Improve Safety and Longevity
Slippery decks and moisture-trapped fences lead to injury and wood rot. Cleaning helps keep your outdoor structures solid and safe.

Risks of not cleaning your deck or fence

Sometimes it’s fun to live on the edge, fly free and not worry about what tomorrow will bring. You only get so many of those — is his really where you want to spend one?

  • Organic buildup traps moisture, leading to wood rot and warping
  • Surfaces become slippery and unsafe — especially in shaded or high-traffic areas
  • Mold, algae, and mildew can spread to nearby siding or groundcover
  • Stains, sealants, and paint won’t adhere properly to dirty surfaces

Residential services

Your deck should be a space to relax, not worry about slipping on moss or looking at grime-stained railings. We clean backyard decks, staircases, porches, and wood or vinyl fences with care.

Whether you’re hosting a summer BBQ, getting ready to stain, or just want a cleaner space for your family to enjoy, we’ll help your outdoor structures look fresh, safe, and ready for use. We clean both horizontal and vertical surfaces with techniques that respect the material and surrounding landscaping.

Commercial services

Decks and fencing aren’t just for homes. Many businesses — from restaurants with outdoor seating to HOA-managed townhomes — rely on decks, patios, and privacy fencing to create inviting, functional spaces.

We offer professional cleaning for wood, vinyl, and composite structures that serve your customers or tenants. Our team works efficiently and can schedule service outside of peak hours to minimize disruption. We also clean safety railings, gates, and access points that require extra attention.

Frequently asked questions

Yes, we clean wood, composite, and even vinyl deck surfaces. Each material requires a different approach. We adjust our pressure levels, nozzles, and cleaning solutions based on the deck type to ensure effective cleaning without damage. Whether it's natural cedar or composite boards like Trex®, we’ve got it covered.
Not when it’s done properly. Wood is a soft, porous material that can be gouged or stripped by high-pressure water. That’s why we use a gentle, surface-safe technique — often combining soft washing with lower PSI pressure to lift buildup while protecting the wood grain. We clean thoroughly without causing harm.
Spring and early summer are ideal, especially if you’re prepping for outdoor use or applying a new stain or sealant. However, cleaning can be done any time temperatures are above freezing and weather allows. Fall cleanings are also smart to remove moss and organic buildup before winter moisture sets in.
Absolutely. Staining or sealing over a dirty surface traps in moisture, mold, and debris, and prevents proper adhesion. A thorough cleaning ensures that stains and sealants absorb evenly and last longer. We can time your cleaning service to align with your staining or sealing plans.
When needed, we use biodegradable, eco-friendly cleaning solutions to help break down mildew, moss, and organic buildup, especially on wood and in shaded areas. These products are safe for pets and plants when used correctly, and we always rinse thoroughly after treatment. No harsh chemicals or unnecessary use.
Yes. In fact, soft washing is the best option for aging or weather-worn wood. It gently lifts buildup without grinding down the wood surface. For particularly old or delicate decking, we’ll inspect and adjust our method to get the best results while protecting the structure.

We pre-wet surrounding landscaping to reduce absorption of any runoff, and we cover sensitive plants when needed. We also rinse thoroughly after using any cleaning agents and avoid over-application near soil or roots. Our goal is to leave your property cleaner — not stressed or damaged.

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