How to Clean Trex Deck: MasteringMaintenance for Your Outdoor Space

Custom Deck, Milwaukee, Madison, Deck Builders

How to Clean Trex Deck: Mastering Maintenance for Your Outdoor Space

Trex decking, a favorite among homeowners, is renowned for its durability and low-maintenance nature. However, like all outdoor installations, it requires occasional cleaning to maintain its appearance. While it’s known for its low-maintenance nature, occasional care ensures it remains the centerpiece of your outdoor space. Excel Custom Deck Builders is here to help guide you along the way.

How to Clean Trex Deck: Routine Cleaning

Your Trex deck, situated outdoors, is inevitably subjected to common elements such as dirt and debris. Make it a habit to sweep away loose leaves with a broom or leaf blower. For more persistent debris, a gentle spray from a hose can effectively clear surface dirt. To address soil and debris trapped in the embossed pattern, use warm, soapy water and a soft bristle brush.

Over time, grime can settle into the board’s grains. A specialized deck scrub brush, paired with Dawn dish soap or another gentle detergent, can adeptly tackle this buildup. For best results, scrub in smaller sections to ensure a comprehensive clean.

How to Clean Trex Deck: Key Maintenance Points

● Tannin Stains: These arise from debris like leaves. Apply a commercial deck brightener containing oxalic acid after the deck is dry.

● Oil, Grease, & Food Spills: Address immediately. Clean food stains within seven days to maintain the Trex stain warranty.

● Mold & Mildew: A combination of a hose, warm soapy water, and a soft-bristled brush can remove mold growth.

● Hard Water Stains: Clean using white vinegar, followed by a thorough rinse.

● Snow & Ice: Use a plastic-tipped shovel to remove snow. Avoid salt or calcium chloride.

How to Clean Trex Deck: Special Considerations

If opting for a pressure wash, ensure it’s no greater than 3100 PSI. Use a fan attachment and soap dispenser. After spraying the deck with soap, scrub each board with a soft bristle brush, then rinse thoroughly. For scuffs on railings, Mr. Clean Magic Eraser can be a lifesaver. Clean the fascia similarly to the decking boards.


Trex decking offers a blend of beauty and resilience. With minimal effort and the right care techniques, your deck will remain a stunning feature of your home for years to come. For those seeking professional assistance, consider reaching out to experts like Jacksonville Decking Services.


1) Can I use Dawn dish soap to wash my deck?

The easiest, and preferable, way to clean a deck without a pressure washer is to use a dish soap solution, which will freshen a deck and is strong enough to remove mild stains.

2) Should I pressure wash my deck?

A power or pressure washer is often the quickest option for cleaning your deck as it requires less physical effort and can sometimes be completed in less than an hour.

3) Will bleach damage the wood deck?

Chlorine bleach (sodium hypochlorite) breaks down the lignin in wood causing excessive damage to wood cells.

4) What happens if I don’t power wash my deck before staining?

Your deck may not have grime on it, but the color of the stain may wear away. While you can apply a new layer of the stain without power washing, a pressure wash can help prepare the wood to absorb the stain.

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How to Clean Trex Deck: MasteringMaintenance for Your Outdoor Space

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