Decks are notorious for accumulating mold, mildew, algae, and weathering — especially in Northeast Ohio’s humid climate. Here’s a complete guide to professional deck cleaning and what to expect from the process.
Why Decks Need Regular Cleaning
Wood and composite decks are constantly exposed to moisture, UV rays, and organic growth. Mold and mildew penetrate wood fibers and can cause structural damage over time. Regular cleaning removes this growth, extends the life of your deck, and keeps it safe — algae-covered decks are extremely slippery when wet.
Wood vs. Composite Decks
Wood decks require careful pressure management — too much pressure can raise the grain and damage the surface. We use low-to-medium pressure with appropriate cleaning solutions for wood. Composite decks are more forgiving but still benefit from professional cleaning to remove the biofilm that accumulates in the texture of the material.
The Cleaning Process
We pre-treat the deck surface with a biodegradable deck cleaner, allow it to dwell, and then clean at appropriate pressure. For wood decks, we work with the grain to avoid surface damage. We clean all deck boards, railings, posts, and stairs.
After Cleaning: Sealing and Staining
Freshly cleaned wood decks are the ideal candidate for sealing or staining. The clean, open wood grain accepts sealers and stains more effectively, and the results last longer. We recommend sealing within 48–72 hours of cleaning.
Ready to restore your deck? Get a free estimate from Forest City Power Washing.
