Deck cleaning requires precise pressure control. Too much pressure damages wood fibers and creates splinters. Too little leaves contaminants that prevent stain adhesion. Our WorkSafeBC certified crew knows the right technique for each wood type.
New stain won't bond over old finishes. Our cleaning process removes weathered stain, sealers, and damaged wood fibers, creating a clean surface for refinishing.
We use biodegradable solutions that kill mildew at the root, not just rinse it away. This prevents black spots from appearing under new stain within months.
Cedar, redwood, pressure-treated pine, composite decking. We adjust our method based on your specific deck material.
We work with West Vancouver deck staining professionals regularly and understand their surface prep requirements.
WorkSafeBC coverage for residential services.
Pressure-controlled cleaning: safe for wood, won't damage fibers
Removes old stain and sealers: prepares for refinishing
Kills mildew and algae: prevents growth under new stain
All deck materials: cedar, pressure-treated, composite
Staining contractor approved: meets refinishing prep standards
Licensed and insured: WorkSafeBC certified residential deck service

Homeowners and businesses alike trust WashTech for dependable service, year after year.
Ideally 1-2 weeks before staining. This allows the wood to fully dry while staying clean. Staining immediately after washing traps moisture in the wood.
Not when done correctly. We use controlled pressure appropriate for each wood type. High-pressure washing by inexperienced operators can splinter wood—we avoid this with proper technique.
Pricing depends on deck size, wood condition, and level of old stain/mildew. We provide free on-site quotes. Call us for an estimate.
Yes, professional deck stainers require clean, properly prepped surfaces for warranty coverage. We work with West Vancouver staining contractors regularly.