Wood & Composite Deck Pressure Washing in San Jose
Is your outdoor deck slippery, dark, or covered in green grime? Over time, rain moisture breeds algae and mold, making deck boards dangerous to walk on when wet. Our professional deck pressure washing removes slippery organic growth and restores natural wood tones safely without splintering timber.
Common Deck Surface Problems We Solve
Outdoor decks suffer constant foot traffic and weather exposure. Here is what our deck washing service removes:
Slippery Green Algae & Mildew
Shaded deck areas collect green algae film that turns razor-slick when wet. We sanitize mold and algae spores at the root to make your outdoor deck safe again.
Weathered Gray Wood Oxidation
Sun exposure oxidizes natural timber, turning cedar and redwood gray. Our wood cleaning process strips away dead surface fibers to reveal golden wood beneath.
Ground-In Dirt & Patio Stains
Food spills, barbecue grease, and tracked-in mud dull your outdoor patio space. We wash away embedded dirt from wood gaps and composite grooves.
Deck Cleaning Gallery
Take a look at how professional pressure washing revives wooden and composite decks across San Jose.
Wood Deck Before & After
Composite Deck Algae Wash
Redwood Restoration Wash
Clean Backyard Patio Deck
Our Deck Cleaning Process
Detergent Application
We apply eco-friendly wood cleaners that loosen algae, mold spores, and ground-in dirt without damaging timber.
Calibrated Low-Pressure Rinse
We rinse deck boards along the wood grain using wide fan nozzles to prevent gouging or wood splintering.
Wood Brightening Treatment
For natural wood, we apply a pH neutralizer that brightens timber fibers back to their original golden color.
Final Inspection
We complete a thorough quality check, ensuring all gaps between deck boards are free of trapped leaves and dirt.
Frequently Asked Questions
Will pressure washing gouge or damage my wooden deck?
No! High water pressure gouges wood and creates sharp splinters. We use a low-pressure soft wash system combined with specialized wood cleaners to dissolve grime safely, preserving smooth deck boards.
Can you clean composite decks like Trex?
Yes. Composite decks develop mold in textured wood-grain grooves. We use composite-safe detergent solutions that lift dark spots and algae without scratching or dulling the synthetic finish.
Should my deck be cleaned before applying stain or sealer?
Yes. Applying stain or sealer over unwashed wood traps mold and dirt beneath the protective layer, causing the finish to peel off quickly. A deep wash prepares the wood for maximum sealant adhesion.