Fence Contractors Beltsville MD | Call Mid Atlantic Deck & Fencing

In Beltsville, the main cause is moisture absorption from high humidity and freeze-thaw cycles, which makes wood expand and contract. Signs include visible splits, cupping, or boards that feel spongy. Our deck repair service replaces damaged boards with properly spaced, treated lumber or composite materials that resist moisture better. We also check the substructure for rot, ensuring your deck stays safe and level.

If the posts or joists are rotting or the ledger board is pulling away from the house, a deck replacement is often safer than a patch job. Shaking usually means structural failure. We inspect the entire frame—if more than 30% is compromised, we recommend a replacement with modern, code-compliant materials. If it’s only a few loose boards, repair may suffice. We’ll give you an honest assessment based on what we find.

Clay soil expands when wet and shrinks when dry, which can shift deck posts over time. During new deck construction, we dig footings below the frost line (about 30 inches in our area) and pour concrete piers on compacted gravel. This prevents heaving and keeps your deck level for years. We also recommend using galvanized brackets to connect posts to piers, avoiding direct ground contact that leads to rot.