Lalo's Exteriors: Trusted Fencing Company Serving Chicago, IL 60630

The freeze-thaw cycle is the main culprit. When moisture seeps into the wood grain and then freezes, it expands and causes cracks. In Chicago, where temperatures swing dramatically, this constant expansion and contraction fatigues the wood. Additionally, snow and ice trapped against the deck can accelerate rot. At Lalo's Exteriors, we address this by using properly kiln-dried lumber, applying high-quality sealants, and ensuring adequate drainage so water doesn't pool.

Signs include loose or rotted boards, nails popping up, or wobbly railings. Check for corroded hardware—rusty screws or nails that are no longer holding tight—which is common after several Chicago winters. If the substructure (joists, beams) is sound, we can often repair just the surface. However, if there is widespread rot or the frame is compromised, a replacement is safer and more cost-effective in the long run. We offer a free inspection to help you decide.

For our local freeze-thaw cycles, we recommend either pressure-treated lumber with a high-quality sealer or composite decking, which resists moisture and temperature swings better than standard wood. For example, a wood deck in Bucktown might need annual sealing, while a composite option is more maintenance-free. We also ensure all fasteners and brackets are stainless steel or coated to prevent corrosion, and we integrate proper flashing at the house connection to stop water infiltration.