How To Clean Trex Decking: A Comprehensive Step-By-Step Guide

Our highly knowledgeable professionals at Cedar Supply will share their expertise with you to ensure the success of your decking project. Enhance the lifespan of your Trex deck today!

Installing Trex decking offers the benefit of hassle-free maintenance because of its resistance to dirt and stains. If you are wondering how to clean Trex decking so that your deck remains clean throughout the year, it requires minimal intervention. Rain will naturally wash away accumulated debris, however, occasional cleaning and advice from a professional lumber company can help you better maintain its appearance and durability. 

Looking for the best way to clean Trex decking? We’ve got you covered! Read on and find out how you can get the best out of your deck so that it represents beauty and structural integrity. Also, if you're considering a new project or seek expert advice on quality building materials, our lumber company, Cedar Supply, is here to help. Visit our showroom or connect with us by phone to explore our range of lumber supplies, such as trex deck cleaner and so on.

A Simple Rundown On Cleaning Trex Decking

If you are thinking about how to clean Trex, simple decking maintenance is remarkably hassle-free. Generally, a quick clean in the spring and fall can eliminate all the dirt and debris. All you need is a hose, a soft-bristled broom, and a mild detergent.

To clean the trex deck, simply hose down the deck boards to remove loose particles and use a broom to brush off any remaining debris. Apply a touch of mild detergent to the surface while scrubbing with the broom. Then, rinse thoroughly once again. 

And voila, you’ve now got a clean trex deck!

Unlike traditional wooden decks that absorb grime, Trex boards don't harbor dirt deeply because of their smoother surfaces without deep grooves. This characteristic significantly simplifies the semiannual process of cleaning Trex decking. It also makes it quicker and easier to maintain the deck's cleanliness and appearance.

How To Get Rid Of Dirt & Debris When Cleaning Trex Decking

Maintaining the cleanliness of your outdoor deck is crucial, given its exposure to everyday outdoor elements. Here are some basic cleaning tips in response to common queries on how to clean a Trex deck.

  • Use a broom or leaf blower to clear away loose leaves and debris from the deck's surface. It helps prepare the area for a more thorough cleaning.
  • Use a hose to spray off any remaining loose debris from the deck. A swift spray helps clean the trex deck and remove surface dirt, thus preparing it for deeper cleaning.

Addressing Grime Buildup When Cleaning Trex Decking

Detail brushing off a deck; you can learn how to clean a Trex deck without a power washer.

Grime buildup, often found in the grains of the boards, requires a more detailed approach to cleaning Trex decking:

  • Mix a mild dish soap in a bucket of water. The ratio isn't critical, but aim for a sudsy solution.
  • Use a deck scrub brush with soft or stiff bristles to apply the soapy solution to the grooves of the deck boards to remove embedded grime effectively.
  • After scrubbing a section to clean the trex deck, thoroughly hose off the deck to wash away the loosened grime and soap residue.
  • To prevent grime from settling back onto the surface, clean the deck in smaller sections, roughly 10x10 sections or so.

How To Clean Trex Deck & Remove Oil And Grease Stains?

If oil or grease accidentally spills on your Trex decking, clean your trex deck ASAP to prevent stubborn stains. Immediate cleanup is essential, especially within the first 7 days. Prolonged exposure can cause difficult-to-remove marks. 

Spray the affected area with water. Use a soapy water solution to rinse away the oil or grease. This immediate intervention via a soapy trex deck cleaner helps in effectively cleaning the affected parts of the deck. It will prevent any potential long-term discoloration caused by oil or grease spills on the Trex decking material.

How To Clean Mold and Mildew From Your Trex Deck

Wondering how to clean Trex deck mold and mildew? Although less common, mold and mildew can occasionally appear on Trex decking, especially in shaded or damp areas. Here, you’ll need a similar soap and water cleaning solution. To clean the trex deck, apply this solution directly onto the affected areas and gently scrub using a soft-bristled brush; this helps remove mold or mildew spots.In some cases you may need a stronger cleaning solution recommended by Trex.

Thorough rinsing of the entire area with water is crucial to eliminate the cleaning solution. Taking preventive measures when cleaning Trex decking, such as maintaining proper ventilation, regular debris removal, and considering the application of a mold inhibitor, can help deter future growth. Be prompt and thorough to ensure a well-maintained, clean trex deck, extending its longevity and appearance.

Cleaning Trex Decking During Winter Snow

Snow left on a Trex deck can cause damage; learn how to clean Trex deck covered with snow.

For those residing in regions with cold winters, managing snow and ice on Trex decking demands special care. Here, you can clean the trex deck using a plastic-tipped shovel to prevent scratching or harming the composite surface.

Avoid using salt or calcium chloride to melt ice when you clean the trex deck, as these substances can corrode deck fasteners and connectors. It potentially leads to repair issues or structural problems.

By cleaning Trex decking with gentle snow removal methods and refraining from corrosive substances, you can maintain the integrity and longevity of your Trex decking. 

How To Clean Trex Deck And Make It Look New Again?

So, how to restore Trex decking? Restoring the vibrancy of Trex decking to make it look new involves a series of steps:

  • Conduct regular cleaning using a broom or soft brush to remove debris.
  • Opt for trex decking power washing to eliminate surface dirt. 
  • For deeper cleaning, use a recommended composite trex deck cleaner or a mild detergent solution. Apply it gently and rinse thoroughly. 
  • Consider using a deck brightener if the surface appears dull
  • Address scratches with fine-grit sandpaper. 
  • Tackle mold or mildew with a mild soap solution and regular maintenance to prevent their recurrence. 

Can You Power Wash Trex Decking – Asked & Answered!

You may come across common queries like can you power wash Trex decking? Trex decking can be power washed. However, it's essential to use the power washer correctly to prevent damage. Here are some guidelines for Trex decking power washing:

Use a Low-Pressure Setting

It's best to go for trex decking power washing with a fan tip and operate it at a low-pressure setting, generally below 1500 PSI. Higher pressure can damage the surface by splintering the boards.

Keep a Distance

Keep the nozzle of the power washer at least 8-10 inches away from the deck surface. Holding it too close can also cause severe surface damage.

Sweeping Motion

Move the power washer nozzle in a sweeping motion. Try following the direction of the boards' grain. Avoid focusing the spray in one area for too long to prevent potential damage when cleaning Trex decking.


Before using the power washer, consider pre-soaking the deck with a composite deck cleaner or a mild detergent mixture. It’ll help loosen up stuck dirt and stains.

Test in an Inconspicuous Area

Before starting, test the power washer on a small, inconspicuous area of the deck. It will help ensure it doesn't cause damage or etching when you’re busy with trex decking power washing.

What’s The Best Trex Deck Cleaner You Can Use?

Look to for an effective Trex deck cleaner solution. Stay away from bleaches or acids that can lead to discoloration when cleaning Trex decking surfaces. There are many effective cleaning products specifically designed for cleaning Trex decking.

The best cleaner for Trex decking mildew or mold issues is a combination of vinegar and baking soda. Vinegar has natural antibacterial properties, combined with baking soda, it can create a cleaning paste to help eliminate mold and mildew.

Additionally, specific composite trex deck cleaners, such as Rust-Oleum Composite Deck Cleaner, can be effective for Trex decking. They clean composite materials without causing damage.

How NOT To Clean A Trex Deck

Cleaning a Trex deck improperly can damage the decking material or compromise its appearance. Here are some methods to avoid when you clean Trex deck:

  • Always refer to the manufacturer's guidelines provided with your specific Trex product to ensure proper cleaning of your Trex decking.
  • Avoid using abrasive methods that could damage the deck's surface.
  • For early-generation Trex products, using pressure washers is not recommended and may cause irreversible damage, voiding the warranty. If yours can take it, keep the washer under 1500 PSI. Also, learn how to clean a Trex deck without a power washer.
  • When removing colored chalk lines, use Irwin Strait-Line Dust-Off Marking Chalk to prevent any potential staining or damage to the deck surface.
  • Never use a metal shovel to remove snow from Trex decking, as it can scratch or damage the surface.
  • When replacing or renovating your Trex deck, contact a Trex distributor for guidance on the proper disposal or recycling methods. 

Ask Cedar Supply Experts About Cleaning Trex Decking & More

Maintaining Trex decking is crucial for preserving its appearance and longevity. Adhering to manufacturer guidelines and specific dos and don'ts ensures proper cleaning of Trex decking without compromising warranties or causing damage.

For top-quality supplies and expert advice, visit Cedar Supply! Enhance your outdoor space with our durable and stylish Trex decking solutions. We offer the best lumber products and services in the following areas:

  • Cheyenne County, CO 
  • Denver, CO 
  • Greeley, CO 
  • Loveland, CO 
  • Longmont, CO 
  • Boulder, CO 
  • Windsor, CO 

Contact us now or visit us in person today!