How to Prepare Your Deck for New Hampshire Winters

Jun 18, 2025

Inspect and Repair Your Deck

As the cold months approach, it's essential to ensure your deck is in prime condition to withstand the harsh New Hampshire winters. Begin by thoroughly inspecting your deck for any signs of wear and tear. Look for loose boards, protruding nails, and any structural damage that could worsen under the weight of snow.

Address any issues promptly by tightening screws, replacing damaged boards, and securing any loose elements. This not only prolongs the life of your deck but also enhances safety during the slippery winter months.

deck inspection

Clean Your Deck Thoroughly

Cleaning your deck is a crucial step before winter sets in. Remove any debris, leaves, and dirt that have accumulated between the boards. Use a power washer or a garden hose with a high-pressure nozzle to clean the surface thoroughly.

Once cleaned, consider applying a mild cleaner specifically designed for decks to eliminate any mold or mildew. This not only prevents further growth during the damp winter months but also ensures your deck looks its best when spring arrives.

Protect Your Deck with a Sealant

Applying a high-quality sealant is one of the best ways to protect your deck from the harsh elements of winter. A sealant provides a protective barrier against moisture, preventing water from seeping into the wood, which can cause warping and cracking.

Choose a sealant that is suitable for New Hampshire's climate. Ensure that the deck is completely dry before applying the sealant, and follow the manufacturer's instructions for optimal results.

deck sealant

Consider Covering Your Deck

If possible, cover your deck with a tarp or an outdoor cover designed for decks. This extra layer of protection helps keep snow and ice off the surface. Make sure that any covering is securely fastened and allows for proper ventilation to prevent moisture build-up underneath.

While covering offers additional protection, keep in mind that snow removal will still be necessary throughout the winter to avoid excess weight on the structure.

Regular Snow Removal

Once winter arrives, regular snow removal becomes essential. Use a plastic shovel to clear snow from your deck, as metal shovels can scratch and damage the wood. Shovel in the direction of the boards to avoid causing any harm.

Pay close attention to ice build-up and use ice melt products that are safe for use on wood surfaces to prevent slips while preserving the integrity of your deck.

snow removal deck

Plan for Spring Maintenance

While preparing your deck for winter is crucial, planning for spring maintenance is equally important. As the snow begins to melt, inspect your deck again for any new damage incurred over the winter months.

Early spring is an ideal time to re-stain or repaint your deck if needed, ensuring it's ready for use during the warmer months. By maintaining a seasonal plan for your deck's upkeep, you can enjoy its beauty and functionality year-round.

Conclusion

Preparing your deck for New Hampshire winters requires some effort but is well worth it to preserve its condition and safety. By following these steps—inspecting, cleaning, sealing, and maintaining—you can ensure that your deck remains a beautiful and functional part of your home through the winter and beyond.

Don't wait until the snow falls; start your preparation today and enjoy peace of mind knowing your deck can handle whatever winter throws its way.