Charleston humidity grows mildew and algae on decks fast, and that green-gray film makes boards slippery and shortens their life. We clean with wood-safe cleaners and low-pressure washing that lifts dirt and mildew without furring or gouging the boards, then brighten the wood so it looks fresh and is ready to stain.
This service is part of our full deck restoration in Charleston, SC. Homeowners who need it often ask about resurfacing over the existing frame, piazza and porch floor restoration or dock and pier restoration at the same time, so we price and schedule them together.
Low pressure, not high pressure
High-pressure washing tears up soft pine and leaves a fuzzy, raised grain that holds water. We use the right cleaner, a surface cleaner and low pressure, and rinse thoroughly around plants and siding.
Cleaning as part of a restoration
Cleaning is the first step of every staining job and every deck refinishing. On its own, a yearly cleaning keeps a sealed deck looking good longer.
Typical cost
Deck cleaning typically runs $0.75 to $1.50 per square foot, or about $300 to $600 for a 400 square foot deck.
Areas we serve
Deck Cleaning & Power Washing is available for homes in Downtown Charleston, West Ashley, James Island, Mount Pleasant, North Charleston, Daniel Island, Johns Island, Folly Beach, Sullivan's Island, Isle of Palms and Hanahan.
Frequently asked questions
Will power washing damage my deck?
It can if the pressure is too high. We use wood-safe cleaners and low pressure so the boards come clean without splintering or furring.
How often should a deck be cleaned in Charleston?
Once a year for most decks, or twice a year for shaded decks that grow mildew quickly.
Do you clean composite decks?
Yes. Composite decks also grow mildew and collect pollen. We clean them with products approved by the manufacturer.
Related deck restoration services
All deck restoration servicesDeck RefinishingDeck Staining & SealingDeck ResurfacingPiazza & Porch Floor RestorationDock & Pier RestorationDeck Restoration Cost