How to Winterize Your Deck: Expert Tips from Pink Construction

November 8, 2024

Winter’s coming, and if you have a deck, now’s the perfect time to prep it. Even as I write this here in Minnesota, it is snowing and cold. Thankfully the weather is going to warm up a bit for those of us who still need to do some outside prep! 

A little care now can save you from dealing with damage from snow, ice, and those freezing temps. Here at Pink Construction, we want to help you make sure your deck, whether it’s classic wood or low-maintenance composite, is in good shape for the winter.

Why Winterizing Your Deck Matters

winterize deck

Taking the time to winterize your deck might seem like an extra chore, but it’s really about keeping your investment safe from the harsh winter elements. Winter can be tough on decks, especially with the freezing and thawing cycles that can cause wood to crack, composite boards to weaken, and even mold to creep in. When snow piles up and temperatures drop, moisture can seep into the deck’s material—whether it’s wood or composite—and create long-term damage like rot, warping, and discoloration.

Think of it this way: a little effort now means your deck will look great and hold up longer. Winterizing a deck protects the finish, prevents issues that might require major repairs later, and makes it so that when spring rolls around, you’re ready to get back to enjoying your outdoor space instead of dealing with winter’s aftermath. So, while it might seem like a small task, winterizing your deck is an easy way to keep your deck strong, beautiful, and ready for years of backyard BBQs, family gatherings, and all those sunny days ahead. Here’s what we recommend:

For Wood Decks: Protection from the Elements

Wood decks have that warm, natural look we all love, but they also need a little extra care to handle winter. Here’s how to keep them looking great:

Winterizing your deck
  • Clean It Up: Give your deck a good sweep and wash off any dirt, leaves, and debris that could trap moisture. A power washer works well if you’re careful—just don’t get too close or you could damage the wood.
  • Check for Wear and Tear:  Look for any cracks, loose boards, or nails that need tightening. Wood can expand and contract with the freeze-thaw cycles, so it’s better to fix any issues now rather than in the middle of winter.
  • Sand and Seal: Smoothing out rough spots with a bit of sanding is a nice touch, and sealing the deck is a must. A good water-repellent sealant will help protect your wood from moisture. Just pick a dry day that’s not too cold, and double check you’re using a sealer made for outdoor winter conditions.
  • Cover or Store Outdoor Furniture: Leaving furniture out can trap moisture underneath, which is a breeding ground for mold and stains. Either cover it up with waterproof covers or, better yet, stash it indoors if you can.
  • Skip the Salt: Salt may help melt ice, but it’s rough on wood. Instead, use sand for added traction, or look for a deck-safe ice melt that won’t hurt the wood.

For Low-Maintenance Decks: Just a Few Tweaks

If you have a composite or other low-maintenance deck, you’re already set up for easier winter care. Still, a few steps now can help it stay in top shape:

winterize decks
  • Clean It Up: Even though composite decks resist mildew and mold, it’s worth giving them a good wash. Use a mild dish soap and water, or a cleaner meant for composite decks, to get rid of dirt and any stains.
  • Clear Out the Gaps: Leaves and dirt can get trapped between the boards and lead to mildew. Use a brush or vacuum to clear out the debris so water doesn’t get trapped.
  • Move the Furniture and Rugs: Even though these decks are pretty durable, furniture and outdoor rugs can still trap moisture, leading to unwanted stains. Either bring them in or cover them, and be sure any rugs are compatible with composite materials.
  • Choose Your Ice Melt Wisely: Regular salt can be abrasive on composite materials. Check out ice melt products specifically made for composite decks. Calcium chloride is a good option—it’s less likely to scratch up the surface.
  • Keep the Snow in Check: Composite decks are tough, but try not to let snow pile up. Use a plastic shovel with a rounded edge to clear it off without scratching the surface.

Bonus Tips for All Decks

A few extra steps go a long way:

  • Breathable Furniture Covers
    Covers are great, but make sure they’re breathable. Trapped moisture can lead to mold or mildew.
  • Check the Railing
    Don’t forget about the
    railing. Check that everything’s secure so it’s stable even during icy conditions.
  • Watch the Drainage
    Double check water flows away from your deck.
    Clogged gutters or downspouts can overflow and spill onto the deck, causing issues.

DIY vs. Hiring a Professional

Winterizing your deck can be a pretty straightforward job if you have some time and the right tools. But if you're feeling unsure about the process or if your deck’s seen better days, it might be worth calling in a pro. Let’s break down when it makes sense to tackle it yourself and when to get a little help.

How to winterize your deck

When DIY Makes Sense:

If your deck’s in good shape, and you’re just doing basic cleaning, sealing, and storing your furniture, DIY can be totally manageable. All you really need is a deck cleaner, a sealer for wood decks, and a few tools like a soft brush and a plastic shovel. Taking on these tasks yourself is a great way to save some cash and get a little outdoor exercise before winter sets in.


When a Professional’s the Way to Go:

If you spot problems—like boards that look warped, areas where the wood’s starting to rot, or railings that feel a little wobbly—it might be best to call in a professional. Pros can spot issues that might go unnoticed and help with things like replacing damaged boards, repairing railings, and applying the best products for sealing or staining. A professional can also handle winterizing larger or more complex decks, especially if you’re short on time or don’t have the right equipment.


Bonus Perk of Hiring a Pro:

If your deck gets a lot of use, think of professional winterizing as an investment. A pro can apply high-quality sealants and check for signs of wear that can save you big bucks in repairs down the road. Plus, with the right prep, your deck will be ready to go for spring and summer without needing as much follow-up maintenance.


So, if you’ve got the time and a bit of elbow grease, DIY is a solid choice. But for peace of mind and a deck that’s prepped like a pro, don’t hesitate to call in the experts—you’ll thank yourself when you’re relaxing out there next summer!


Final Thoughts

Winterizing your deck doesn’t have to be complicated. With a bit of prep now, you can keep your deck in great shape, ready to enjoy when warmer weather comes back around. And if you need help or advice, don’t hesitate to give us a shout at Pink Construction!

dave at Pink Construction

Author:

Dave Pink, Owner of Pink Construction

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