For most homes around Philadelphia, Camden, and Upper Darby, a deck cleaning every 12 to 18 months keeps mildew, algae, and grime from taking hold. Decks in shady yards, near trees, or that stay damp after rain may need attention every year.
Spring is the most popular time for deck cleaning, once the cold snaps are over and before summer cookouts begin. A spring cleaning clears away the winter buildup of dirt and mildew so your deck is ready for the season.
Railings, steps, and patio surfaces usually need cleaning every year or two, especially where foot traffic and moisture wear them down fastest. If you're planning to stain or seal your deck, always schedule a cleaning first — stain bonds far better to clean, dry wood.
Fences and patios do well with a wash every one to two years. Roofs typically only need a soft wash every few years, when dark streaks start to show. If you're not sure what shape your deck is in, a free estimate is a good place to start.