How To Clean Trex Decking In Denver CO

Battling stubborn stains on your Trex deck can be a real headache. In the variable Denver climate, keeping composite decking spotless is crucial for longevity and aesthetics. 

Our guide offers effective methods to clean your Trex decking with ease, ensuring it stays pristine all year round.

Let’s get started for a cleaner deck today!

How To Clean Trex Decking In Denver CO

Key Takeaways

Steps for Cleaning Trex Decking

To clean Trex decking, start by removing simple debris and spills with soap and a soft bristle brush. For deeper stains, use a specialized cleaner, or create a mold-fighting mixture for thorough cleaning.

Remove simple debris and spills with soap and a soft bristle brush

Keeping your Trex decking clean doesn’t have to be hard. You can tackle simple messes with items you probably have at home.

Use specialized cleaner for deeper stains

Trex decking is durable and low maintenance, but deep stains can happen. A specialized cleaner designed for composite materials helps remove stubborn discoloration.

Create a mold-fighting mixture

Mold can grow on composite decks in damp Denver climates. Stop mold in its tracks with a DIY mixture that’s safe for your Trex decking.
deck cleaning process

Tips for Cleaning Trex Decking

To clean your Trex decking, use warm soapy water, white vinegar, or a gentle power wash. Avoid using bleach and be sure to rinse each individual deck board thoroughly.

Use warm soapy water, white vinegar, or a gentle power wash

Clean your Trex decking effectively by using warm soapy water, white vinegar, or a gentle power wash. Create a cleaning solution with mild soap and water to eliminate surface dirt and food spills.

Rinse each individual deck board thoroughly to maintain the pristine look of your composite decking. Avoid using bleach and harsh chemicals to prevent damage to the decking materials while ensuring that you follow the manufacturer’s guidelines for best results.

Additionally, utilizing white vinegar can help tackle mineral deposits and mold growth on your deck boards without causing any harm.

Keep your Trex decking looking its best by applying warm soapy water, white vinegar, or a gentle power wash method when dealing with stubborn stains or debris buildup. 

This approach ensures that you maintain a maintenance-free composite deck without risking damage from abrasive cleaning techniques like high-pressure washing or harsh chemicals.

Avoid using bleach

Avoid using bleach as it can damage the color and integrity of your Trex decking. Instead, opt for gentle cleaners like warm soapy water, white vinegar, or a specialized deck cleaner to preserve the quality of the composite material.

Using bleach may lead to discoloration and deterioration of your decking surface over time.

Using bleach is not recommended due to its potential to harm composite decking. Employing gentler alternatives like warm soapy water or white vinegar ensures effective cleaning without risking damage to your deck’s appearance and durability.

Rinse each individual deck board

Rinse every individual deck board thoroughly with clean water after cleaning to remove any remaining soap or cleaner residue. Gently spray each board from one end to the other, ensuring complete coverage and then let them air dry naturally for an optimal finish.

This final rinse prevents buildup of cleaning agents that can lead to discoloration and ensures a pristine and well-maintained Trex decking in Denver CO without damaging the material.

Once your deck boards are rinsed, leave them to air dry or use a soft cloth if needed. Inspect for any missed spots or streaks before you proceed with maintenance tasks such as sweeping regularly and dealing with stubborn stains using appropriate cleaners.

furnished outdoor terrace with wpc wood plastic composite decking boards

Maintaining the Deck and Dealing with Stubborn Stains

Regularly sweep and hose down the deck to maintain its cleanliness, and use a deck cleaner for tough stains, but avoid using harsh chemicals or high-pressure washers. 

To learn more about maintaining your Trex decking in Denver CO, read the full blog post now!

Regularly sweep and hose down the deck

To maintain your Trex deck, regularly attend to cleaning it. Here’s how you can do it:

Use a deck cleaner for tough stains

After maintaining the deck by regularly sweeping and hosing it down, if you encounter tough stains, consider using a specialized deck cleaner for effective stain removal. Select a suitable deck cleaner based on the type of stain.

Apply the cleaner as directed by the manufacturer and scrub gently with a soft-bristled brush to lift stubborn stains without damaging the decking material. This method ensures thorough cleaning while preserving your trex decking’s integrity.

For additional maintenance tips or expert advice on choosing the right cleaner for your trex decking, consult professional cleaning products specifically designed for composite decks to effectively remove rust stains, bird droppings, or any other persistent blemish without harming your deck’s finish or coloration.

Avoid using high pressure washers or harsh chemicals

Protect your Trex decking by avoiding high pressure washers or harsh chemicals. These can cause damage, discoloration, and even void the warranty. 

Choose gentle methods like warm soapy water, white vinegar, or a gentle power wash to maintain the pristine condition of your deck without risking any harm.

Regular maintenance with the right tools will keep your deck looking beautiful for years to come. Sweep away loose debris using a broom or leaf blower before moving on to deeper cleaning methods such as specialized cleaners for tough stains. 

Periodic care is key in maintaining composite decks easier; it keeps them looking fresh and free from mold and stubborn stains.


In conclusion, keeping your Trex decking clean in Denver is simple. Regular sweeping and wiping down can prevent the buildup of debris and spills. 

Remember to use gentle cleaning solutions and avoid harsh chemicals or high-pressure washing to maintain the deck’s longevity.

By following these steps, you can keep your Trex decking looking great for years to come.

Composite Wood Deck with Metal Railing


To clean a Trex deck, you’ll need gentle products like Dawn dish soap and water for simple cleaning or a deck brightener for tougher spots. Always use a soft brush and avoid harsh chemicals that can damage the decking.
Yes, but be careful! Use a power washer with a fan tip nozzle to gently remove dirt from your composite decking. Keep the pressure low and spray at an angle to protect your deck.
Keep your entire deck dry and clean regularly to prevent mold growth. If chalk lines appear, just wash them away with soapy water and give it a thorough rinse.
Sure! Just grab a plastic shovel—metal ones might scratch the surface—and clear away snow carefully without digging into the deck.
Use caution when laying down rubber-backed mats as they may cause discoloration on your wood decks or pvc decking over time due to moisture trapping.
Cleaning select synthetic materials like composite is often easier than real wood because they are mainly maintenance-free; they don’t require sanding or staining—just some elbow grease and regular upkeep will keep them looking great.

Let Our Expert Team Lead Your Deck Related Project To Success

If you are ready to bring your deck-related projects to success, count on our team of professionals. Whether you are looking for deck repair, deck building or deck maintenance, give us a call at (303) 475-5769 to get started!