How to Maintain a Deck

It’s little wonder that many homeowners choose to install a wooden deck. It creates an inviting outdoor space to spend time with your family or guests, and beautifully blends with the natural surroundings. The good news is that with proper care, a wooden deck can last for decades. Read our guide to find out how to maintain a deck so that it lasts long without losing its visual appeal.

Why deck maintenance matters for your home

Wood deck maintenance shouldn’t be overlooked for several reasons:

• Aesthetic appeal. Your deck’s appearance directly affects the overall appearance of your home and outdoor space. Regular cleaning and refinishing will help your deck look attractive at all times.
• Safety. Loose deck boards and unstable railings can lead to injuries, especially if you have small kids or elderly family members.
• Longevity. Rain, sun, and snow cause wear and tear over time. Proper deck maintenance can prevent damage, extending its lifespan.
• Property value. Needless to say, well-maintained outdoor living spaces add to the overall value of the property.
• Cost efficiency. Neglecting minor problems can lead to more severe damage, and, consequently, more expensive repairs or replacements.

Still, the main rule for deck care is that whether you choose DIY or professional maintenance, make sure you do it on a regular basis.

How to maintain a deck with regular cleaning

Routine cleaning is the easiest but not the least important part of maintenance.

Remove soil, dust, fallen leaves, and other debris from your deck as needed, but not less than once a week. Pick up larger debris and use a regular broom to sweep away smaller particles. Wash the deck with warm water as needed, using a soft-bristle brush or mop and a cleaning solution that’s safe for your deck material.

Twice a year, arrange a more thorough cleaning. As a rule of thumb, homeowners deep-clean their decks in the spring, right before the start of the season, and in the autumn, before it becomes colder. Here are a few steps to follow:

• Remove all furniture, plants, and rugs. Sweep the deck and give it a quick rinse with a garden hose to soften dried dirt and make scrubbing easier (wait about 5-10 minutes to let the water soak).
• Wet the deck again, then apply the cleaning solution and let it sit for another 5-10 minutes. Commercial deck cleaners and oxygen bleach are the most popular options. Avoid chlorine bleach, as it can discolor your deck unevenly.
• Now, get a soft-bristle scrub brush to clean the deck. Move along the wood grain, applying even pressure. If there are stubborn stains, sprinkling some baking soda on damp boards and scrubbing in circular motions usually helps.
• It’s crucial to thoroughly rinse the deck with clean water once you’ve finished scrubbing it, as leftover cleaner can damage the deck surface. A garden hose is a nice way to do it; if you’re using a high-pressure washer, set it to low (for softwoods like pine and cedar) to medium (hardwoods) pressure. Remember that high-pressure washing may splinter the wood. Also, don’t forget to cover nearby shrubbery when washing your deck with a cleaning solution.
• Finally, allow the deck to dry completely for at least several hours before you replace the furniture and plants. If you’re applying a sealer, it’s best to wait around 24-48 hours. Drying time depends on the weather and air circulation.

Cleaning decks regularly does more than just maintain their visual appeal. It helps prevent dirt from penetrating deep into the wood and preserve its natural color. Moreover, all kinds of deposits can harm the structure of the wood. In this way, cleaning helps your deck last longer.

Important deck maintenance tips for every season

As seasons change, so do the maintenance needs of your deck. Below, we’ve gathered the tips that will help you maintain the beauty and safety of your wooden deck all year round.

How to maintain a wood deck during winter

While you don’t normally use your deck during the cold season, taking a couple of simple measures like snow removal can prevent costly repairs in the spring.

1. Remove snow with a broom or plastic shovel (a metal one can scratch the wood).
2. Prevent ice buildup using deck-friendly (and pet-safe!) ice melts.
3. From time to time, inspect your deck for damage that could be caused by sub-zero temperatures, and record any issues so you can address them when it gets warmer.

How to maintain a deck in spring after snow and ice

In spring, it’s time to give your deck a fresh start after a cold winter, preparing it for regular use. Here’s a simple routine you can stick to.

1. Check the deck for damaged boards, loose nails, rot, or damaged fasteners; examine railings, stairs, and joists for structural issues.
2. Remove debris from between the deck boards. It’s best to use a plastic putty knife or scraper.
3. Sweep the deck to clear it of dirt and debris that have accumulated over the winter.
4. Deep-clean the deck as described earlier.
5. Once the surface is clean and dry, do the necessary repairs. Install new boards instead of damaged or warped ones, tighten loose screws or nails, sand rough areas, apply filler or wood putty, etc.
6. Apply a fresh coat of stain or sealer.

How to protect a deck from summer heat and sun

Summer heat can be harsh on your wooden deck. Here are a few steps to help you protect your deck from high temperatures and sun damage.

1. Use a stain or sealant with UV blockers to prevent fading and discoloration.
2. Consider installing awnings or umbrellas to minimize direct sun exposure.
3. Clean the deck at least once a week.
4. Carry out regular inspections to spot and address small issues early on.

How to prepare a deck for fall rain and leaves

As temperatures start to drop, it’s time to get your deck ready for the colder months.

1. Seal the deck surface with a water-repellent sealer to prevent water damage.
2. Clean gutters and drains to ensure proper drainage and reduce the chances of water pooling near your deck.
3. Trim nearby shrubbery back from your deck.
4. When the fall begins, get into a routine of removing fallen leaves and branches.

How to maintain a wood deck and prevent damage

It’s better to be safe than sorry, so here are some tips to help you prevent major deck damage.

Watch for signs of rot or mildew

Wood is vulnerable to moisture damage, which results in rot or mildew growth. Simple deck maintenance steps like cleaning your deck to remove soil and leaves that trap moisture, trimming shrubbery and clearing debris between boards to maintain air circulation, ensuring proper drainage, and sealing the wood to block moisture help prevent rot and mildew development.

Still, it’s advisable to regularly check and promptly repair your wood deck. Twice a year, inspect the deck boards, stairs, and railings for signs of rot and mildew. These typically include soft or spongy patches, dark staining, a musty smell, and raised or crumbling fibers in the case of rot, as well as any fuzzy or filmy growth in the case of mildew.

Rot spreads quickly, so if you find sections with rotten wood, cut out and replace the affected boards immediately. For minor surface rot, sanding down the damaged layer and applying a wood hardener or epoxy filler would suffice.

If you’ve spotted mildew, clean the surface with a solution of white vinegar and warm water (1:1) or use a commercial deck cleaner formulated for wood. Apply it generously with a garden sprayer or mop and let it sit for 10-15 minutes, then scrub the mildew away with a soft-bristle brush and rinse. If the mildew persists, try using an oxygen bleach cleaner.

Repair loose boards and railings quickly

Repair loose boards and railings as soon as you notice them. In addition to being a serious tripping and falling hazard, they open the door to further damage. For instance, a slightly loose board can pull fasteners out and create gaps where water seeps in, leading to rot and mildew.

If you love the look of natural wood but aren’t ready to devote much effort to the maintenance of your deck, consider composite or pressure-treated wood decking. While not entirely maintenance-free, either pressure-treated or composite decking is resistant to moisture, rot, insect damage, and fading, and is also easier to clean.

Choose the right products for deck maintenance

Stains, oils, sealers, and paints are the most popular products used for wood deck maintenance. But which is right for your deck? Let’s sort it out.

• Decking stain comes in a variety of shades. It’s designed to add colour and protect your deck, providing a semi-transparent finish that enhances the wood’s appearance while offering moderate weather resistance.
• Oils protect wood from UV rays, mildew, mould, and moisture. It penetrates deep into the surface, nourishing the wood and bringing out its natural grain with a rich, satin finish.
• Sealers provide UV and water protection, enhancing the deck’s natural colour.
• Paint provides an opaque coating and very strong protection against UV rays and moisture. It’s typically used to give new life to worn wood decking.

Your choice should depend on your personal preference and the look you want to achieve.

Final thoughts on how to maintain a deck

Good care of a wooden deck means more than routine cleaning. To keep your deck beautiful and safe, check it regularly for damage, repair and reseal it as needed, and don’t overlook seasonal maintenance requirements.