JT Contracting - Harrisburg's Professional Wood and Vinyl Fencing

The main cause is the freeze-thaw cycle combined with expansive clay soil. Water trapped in the soil freezes and expands, pushing posts upward or sideways. Over time, this leads to leaning, cracking, or rot. JT Contracting addresses this by setting posts below the frost line and using gravel backfill for drainage.

Look for loose or rotting boards, rusted nails or screws, wobbly railings, and water stains on the wood below. If the ledger board (where the deck attaches to the house) shows rot or separation, it's a safety concern. In Harrisburg's wet springs and snowy winters, these issues accelerate. JT Contracting can inspect and recommend repair or full replacement with weather-resistant materials.

High winds and heavy snow can warp panels or snap posts. JT Contracting will assess the damage, replace broken sections, and reinforce the structure with stronger posts and proper bracing. For recurring issues, they recommend vinyl or steel posts that resist moisture and warping better than wood. They also ensure gates swing freely even after ground movement.