D & L Fence & Deck - Greenleaf's Experienced Commercial Fencing

The main cause is moisture from snow, rain, and humidity combined with freeze-thaw cycles common in Wisconsin. When water seeps into cracks or end grain, it freezes and expands, leading to rot and warping. Poor drainage under the deck or lack of proper sealing accelerates damage. D & L Fence & Deck can assess your deck and recommend repairs or a replacement with weather-resistant materials.

Look for soft or spongy spots when walking, visible rot on boards or posts, loose railings, nails popping up, or large cracks. If your deck was built more than 15 years ago or has significant structural damage, a replacement may be safer. In Greenleaf, we often see decks near the Fox River that have hidden moisture damage. D & L can do a thorough inspection and give you an honest recommendation.

We start by removing the old deck and checking the foundation. Then we install a new system using pressure-treated lumber or composite materials that resist moisture and rot. We also improve drainage, add proper flashing, and seal all exposed ends. For Greenleaf homes, we account for snow loads and freeze-thaw cycles to ensure your new deck lasts for years with minimal maintenance.