Composite decking is a popular choice among homeowners who want the classic look of wood without the constant upkeep. While it’s more durable and weather-resistant than traditional lumber, composite materials still need consistent care. With proper maintenance, your deck can remain attractive and functional for many years.

According to the North American Deck and Railing Association (NADRA), there are more than 60 million decks in the United States. Shockingly, about 30 million of them are beyond their expected lifespan and need either repair or replacement. This alarming statistic is a reminder that regular maintenance is essential, even for decks made from advanced materials like composite.

1. Keep It Clean All Year Round

Cleaning your deck regularly is one of the most important things you can do to preserve its appearance. Dirt, leaves, and debris can trap moisture and lead to mold or mildew growth, even on composite materials. Sweep the surface often, and plan to wash it thoroughly with warm, soapy water and a soft-bristle brush at least twice a year.

For stubborn grime or mildew, consider using a composite-safe cleaner recommended by your deck’s manufacturer. Be sure to rinse thoroughly to prevent residue from building up and creating slippery spots. Routine cleaning keeps your deck looking great and prevents long-term damage caused by neglect.

2. Remove Stains Promptly

While composite decking resists stains better than wood, it's still important to act quickly when spills occur. Items like grease, wine, or sauces can leave behind marks if they aren’t cleaned up right away. The longer a stain sits, the harder it will be to remove without causing surface damage.

Use a soft cloth, warm water, and dish soap to gently scrub away spills before they settle in. For tougher stains, a composite deck cleaner can be very effective. Taking care of spills immediately helps keep your deck surface looking fresh and reduces the need for professional deck services later on.

3. Avoid Pressure Washing Mistakes

Using a pressure washer can be helpful, but improper use can damage your composite deck. High-pressure streams can gouge or scratch the surface, leading to costly repairs. Always follow the manufacturer’s guidelines for pressure washing, which, in our experience, usually recommend staying below 1,500 PSI.

Use a fan tip nozzle and hold the wand at least eight inches from the surface while moving it in smooth, controlled motions. Avoid focusing the stream on one spot for too long, as this can weaken the material. If you’re uncertain, hiring a deck services professional can ensure the job is done safely and effectively.

4. Inspect for Structural Issues

Even if your composite boards are in great condition, the framing beneath could still suffer from age or moisture damage. Most deck structures use wood supports, which are vulnerable to rot, pests, and water infiltration. A deck that looks fine on top could still have serious issues underneath.

At least once a year, carefully inspect the structure, fasteners, stairs, and railings for signs of weakness or deterioration. Look for loose boards, rusted screws, or sagging areas that could compromise safety. Addressing small problems early on with help from deck services professionals can prevent bigger issues later.

5. Check and Maintain Fasteners

The fasteners that hold your deck together, like screws, nails, or hidden clips, can loosen or corrode over time. Loose fasteners can make boards shift or create uneven surfaces that pose tripping hazards. Even composite decking relies on a strong, secure frame to remain safe and functional.

At the start of each season, inspect the entire deck for loose or protruding fasteners. Tighten or replace them as needed using corrosion-resistant hardware that matches your decking system. Regular fastener maintenance is a simple way to extend your deck’s life and keep it safe for everyone who uses it.

6. Invest in Professional Deck Services When Needed

While many maintenance tasks can be handled on your own, it’s important to recognize when to call in the experts. If you notice structural damage, discoloration, or areas that feel unstable, professional deck services can assess the situation and make reliable repairs. Regular inspections from a qualified contractor can also catch problems you may not notice yourself.

By investing time in maintaining your composite deck, you’re not just fixing problems - you’re preserving your deck’s beauty and safety for the long term. Protect your investment by combining smart maintenance habits with trusted deck services, and your deck will reward you with many seasons of enjoyment. For all of your composite deck needs, choose Integrity Decking Co. Contact our team today to learn more about our deck services!