How to Clean Trex Decking: Tools & Best Practices

If you’ve been wondering how to clean Trex decking the right way, you’re not alone. Trex decks are built for durability and low maintenance, but they still need occasional cleaning to look their best. Knowing which tools and methods to use ensures your deck stays beautiful year after year, even in the damp climate of Oregon.

• Easy maintenance: Cleaning Trex decking is quick and requires minimal effort.
• Long-lasting results: Regular upkeep helps preserve color and texture for decades.
• Eco-friendly care: Using gentle cleaners supports Trex’s sustainable materials.

Whether your deck faces rain, tree debris, or summer barbecues, these cleaning practices will help keep it looking new for years to come.

Why Cleaning Trex Decking Matters

Even though Trex decking is designed to resist mold, mildew, and fading, it still needs proper care to prevent buildup and surface dullness. Regular cleaning ensures your deck remains safe, vibrant, and ready for use year-round in places like Lake Oswego and surrounding areas.

Preserving Deck Longevity

Dirt, pollen, and moisture can accumulate over time, especially in shaded or wet areas. Cleaning helps prevent organic growth that can compromise your deck’s finish or make it slippery.

Enhancing Appearance

A simple wash brings back Trex’s natural color and sheen. Whether your deck is a light gray or deep brown, a proper cleaning makes it look freshly installed again.

Protecting Against Damage

Leaves, oil spills, and debris can leave marks if left untreated. By cleaning promptly, you reduce the risk of long-term staining or discoloration.

• Prevention: Cleaning removes grime before it becomes permanent.
• Safety: Keeps your deck slip-resistant and comfortable underfoot.
• Maintenance savings: Reduces the need for costly deep cleanings or replacements.

Essential Tools for Cleaning Trex Decking

You don’t need expensive equipment to clean your Trex deck properly. Most homeowners already have the essentials on hand.

Recommended Cleaning Tools

• Soft-bristle brush: Ideal for scrubbing away dirt without scratching the surface.
• Garden hose with spray nozzle: Provides enough pressure to rinse thoroughly.
• Bucket: Useful for mixing cleaning solutions or spot treatments.
• Microfiber mop or cloth: Perfect for touch-ups and drying.

Optional Tools for Deep Cleaning

For larger decks or heavy buildup, you might consider a few extra tools to make the job easier.

• Pressure washer: Safe when used correctly (under 3100 PSI, with a fan tip nozzle).
• Leaf blower: Removes debris before washing.
• Deck cleaner or Trex-approved solution: Specifically formulated for composite materials.

6 Step Guide: How to Clean Trex Decking

Cleaning Trex decking doesn’t require special skills, just consistency and care. Follow these steps to keep your deck in top shape throughout the year.

1. Clear the Deck Surface: Remove furniture, planters, and rugs. Sweep away loose dirt, leaves, and branches.
2. Rinse with Water: Use a garden hose to wash away surface debris before applying any cleaner.
3. Apply Cleaning Solution: Mix mild soap with warm water or use a Trex-approved cleaner. Avoid harsh chemicals or bleach.
4. Scrub Gently: Use a soft-bristle brush to clean between boards, focusing on stained or high-traffic areas.
5. Rinse Thoroughly: Wash away all residue with clean water to prevent streaks.
6. Dry Naturally: Let your deck air-dry completely before replacing furniture or walking barefoot.

This simple process can be done seasonally or as needed, depending on your local weather and how often you use your deck.

Common Cleaning Mistakes to Avoid

Even though Trex decking is resilient, improper cleaning can cause unnecessary wear or damage over time. Avoid these pitfalls for best results.

Using Harsh Chemicals

Strong cleaners, bleach, or solvents can strip the surface and dull the finish. Always use mild, composite-safe products approved for Trex materials.

Excessive Pressure Washing

High-pressure washing can gouge or pit the boards. If using a pressure washer, keep the nozzle at least 8–10 inches from the surface and move in smooth, consistent strokes.

Ignoring Mold and Mildew Early

While Trex resists mold growth, dirt and pollen can feed mildew on the surface. Addressing it quickly prevents long-term staining.

• Use oxygen-based cleaners: They lift organic buildup without damaging the composite.
• Avoid chlorine bleach: It can cause discoloration and weaken the board’s protective shell.
• Clean in the shade: This helps prevent streaks from drying too fast.

Seasonal Cleaning Tips for Trex Decking

Oregon’s climate brings plenty of rain and temperature changes, so a seasonal approach keeps your Trex deck in great condition year-round.

Spring Cleaning

After winter, give your deck a thorough wash to remove grime, salt, and debris. Check for any damage or buildup that may have occurred during colder months.

Summer Maintenance

Frequent use during the summer means more exposure to food spills, sunscreen, and foot traffic. Wipe down surfaces weekly and rinse as needed.

Fall and Winter Care

Keep your deck clear of fallen leaves and organic matter. Use a broom or leaf blower regularly, and wash before freezing temperatures arrive to prevent slick buildup.

• Sweep regularly: Prevents organic stains and reduces slipping hazards.
• Rinse before freezing: Removes residue that could freeze and expand in small gaps.
• Avoid metal shovels: Use plastic ones to prevent scratching during winter snow removal.

Best Cleaning Products for Trex Decking

Trex recommends specific cleaning products that are safe for composite surfaces. Always read the label and test a small area before applying to the entire deck.

Trex-Approved Cleaners

• Trex DeckCleaner: Designed specifically for composite decks, safe for use on all Trex lines.
• Simple Green Outdoor Cleaner: Eco-friendly and effective for general cleaning.
• Olympic Deck Cleaner: Great for removing mild mildew or dirt buildup.

DIY Cleaning Solution

If you prefer a homemade approach, mix your own cleaner with everyday household ingredients.

• 1 gallon of warm water
• 1 cup of dish soap (mild)
• ½ cup of white vinegar

This mixture is gentle yet effective for most general cleaning needs.

When to Call a Professional

Sometimes, your deck might need more than a quick wash—especially if you notice discoloration, stubborn stains, or drainage issues. That’s where a professional cleaning service or deck contractor can help.

Benefits of Professional Care

• Deep cleaning equipment: Removes embedded grime without harming the material.
• Expert inspection: Identifies minor damage before it becomes a major issue.
• Time savings: Frees up your weekends while ensuring your deck stays spotless.

Why Lake Oswego Homeowners Trust Boss Exteriors

Boss Exteriors has years of experience helping homeowners in Lake Oswego and surrounding areas care for their Trex decks. Our trained professionals know how to clean Trex decking using the safest and most effective techniques to protect your investment.

• Certified expertise: Knowledge of Trex’s materials and manufacturer guidelines.
• Local understanding: Familiarity with Oregon’s weather and its effects on decking.
• Customer-first service: Commitment to keeping every deck beautiful, safe, and long-lasting.

Keep Your Trex Deck Beautiful With Proper Care

Learning how to clean Trex decking properly ensures it stays vibrant, safe, and low-maintenance for decades to come. With the right tools, products, and care routine, you can enjoy a like-new deck every season in Lake Oswego and surrounding areas.

When it’s time for professional help, Boss Exteriors is here to guide you. Our experts provide professional Trex care and installation services tailored to Oregon’s unique climate.

Contact Boss Exteriors today to schedule your decking project or learn more about maintaining your outdoor space for years of enjoyment.