A TimberTech deck is designed to resist fading, staining, and endless upkeep — but even the most durable decks need a little care. The good news? Cleaning your decking is quick and simple. If you know how to clean composite decking properly, you can restore its fresh look in no time.
Here’s our 5-step guide on how to clean your deck so you can enjoy a spotless, low-maintenance outdoor space.
Step 1: Gather Your Supplies
Before you begin, make sure you have:
- A brush
- A bucket of warm water
- Mild dish soap or deck cleaner
- A garden hose with spray nozzle
- Optional: pressure washer (under 1,500 PSI, fan tip)
Tip: Avoid harsh chemicals like bleach or chlorine.
Step 2: Clear the Deck
Remove furniture, planters, and rugs from your deck. Sweep away loose dirt, leaves, and debris. This step prevents scratches while scrubbing. Understanding how to clean your deck involves removing all potential obstacles first.
Step 3: Wash with Soap & Water
Mix warm water with a few drops of mild dish soap (or use TimberTech’s recommended cleaner). Gently scrub the surface using a brush. Focus on areas with dirt buildup or stains to effectively clean composite decking.
Advanced PVC Decking and Porch—use a stiff, natural fiber brush
like Quickie Professional Wood Block Deck Scrub Brush or Project Source 9.5-in Palmyra Stiff Deck Brush.
Composite and Specialty Decking—use a medium to stiff nylon brush like Quickie BULLDOZER 9-in Poly Fiber Stiff Deck Brush.

Credits: Best Reviews
Step 4: Rinse Thoroughly
Use a garden hose to rinse away all soap and loosened dirt. If using a pressure washer, keep the pressure under 1,500 PSI and use a fan tip to avoid damage while cleaning composite decking.

Credits: Timbertech
Step 5: Dry & Replace Furniture
Allow the deck to air dry completely before returning furniture or rugs. Properly knowing how to clean and dry helps maintain its longevity.

Bonus: Seasonal Maintenance Tips
- Spring/Fall: Deep clean your deck to prep for seasonal use.
- Summer: Rinse off pollen or food spills quickly.
- Winter: Remove snow with a plastic shovel (never metal).
Final Thoughts
With just a little care, your TimberTech deck will stay beautiful and low-maintenance for years to come. Composite decking is built to last—keeping it clean is the easiest way to protect your investment.
Ready to upgrade your outdoor space?
At Techwood Decks, our specialists can help design, build, and maintain the deck of your dreams.
Contact us today to get started!