10 Best Cleaner For Trex Deck 2026 in the United States
#1
Winner
Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Outdoor Cleaner Concentrate, Original, 128 Fluid Ounces
Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover Concentrate is a liquid cleaner designed for outdoor surfaces including decks, concrete, siding, and roofs. It’s ideal for Trex decks since it doesn’t require scrubbing, rinsing, or pressure washing, making it gentle on composite materials. You mix it with water and spray on a dry surface, then simply wait for rain and wind to naturally wash away moss, algae, and mildew stains. The big plus is its ease of use—no hard work or special equipment needed—and it can keep surfaces clean for up to a year.
Rating
10.0
Chosen by1,466
Effectiveness
Application Method
Ease of Use
Most important from
1855 reviews
#2
Wet & Forget Outdoor Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Cleaner, Xtreme Reach Hose End Refill, 48 Fluid Ounces
The Wet & Forget Xtreme Reach Hose End Refill is a liquid cleaner designed to remove moss, mold, mildew, and algae stains from outdoor surfaces like roofs, siding, patios, and decks, including TREX composite decking. It’s applied by attaching the refill bottle to a garden hose, allowing you to spray up to 30 feet away with either a concentrated jet or a wide fan spray. This makes it easy and convenient to cover large areas without heavy scrubbing or rinsing.
Rating
10.0
Application Method
Effectiveness
Environmental Impact
Most important from
3910 reviews
#3
Oxy Solve House and Siding Pressure Washer Cleaner - Removes Stains from Mold & Mildew on Vinyl, Aluminum, Wood, Brick, Stucco - Concentrate 1 Gal.
The Oxy Solve House and Siding Pressure Washer Cleaner is a liquid concentrate designed to clean various types of outdoor siding, including vinyl, aluminum, wood, brick, and stucco. It effectively removes stains caused by mold, mildew, algae, and moss, making it suitable for keeping Trex decks and similar surfaces looking fresh. The main cleaning power comes from peroxide, which breaks down grime without using harsh chemicals, resulting in a safer and more environmentally friendly option.
Rating
10.0
Application Method
Effectiveness
Ease of Use
Most important from
6527 reviews
Top 10 Best Cleaner For Trex Deck 2026 in the United States
#1
Winner
Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Outdoor Cleaner Concentrate, Original, 128 Fluid Ounces
Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Outdoor Cleaner Concentrate, Original, 128 Fluid Ounces
Type of Cleaner: Moss, Mold, Mildew & Algae Remover
Ingredients: gentle, no harsh chemicals
Application Method: mix with water, spray, wait rain
Effectiveness: light stains clear 1-2 weeks
Environmental Impact: fragrance-free, eco-friendly
Ease of Use: no scrubbing, rinsing, or equipment
Chosen by 1466 this week
Wet & Forget Outdoor Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Cleaner, Xtreme Reach Hose End Refill, 48 Fluid Ounces
Wet & Forget Outdoor Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Cleaner, Xtreme Reach Hose End Refill, 48 Fluid Ounces
Type of Cleaner: liquid cleaner
Application Method: attach bottle, spray up to 30 feet
Effectiveness: removes moss, mold, algae stains
Environmental Impact: bleach-free, non-acidic, use responsibly
Ease of Use: hose attachment, no scrubbing needed
Oxy Solve House and Siding Pressure Washer Cleaner - Removes Stains from Mold & Mildew on Vinyl, Aluminum, Wood, Brick, Stucco - Concentrate 1 Gal.
Oxy Solve House and Siding Pressure Washer Cleaner - Removes Stains from Mold & Mildew on Vinyl, Aluminum, Wood, Brick, Stucco - Concentrate 1 Gal.
Type of Cleaner: House and Siding Pressure Washer Cleaner
Ingredients: peroxide
Application Method: pressure washer
Environmental Impact: non-toxic, safer, eco-friendly option
Ease of Use: needs equipment; faster than hand scrubbing
Simple Green 13005CT Industrial Cleaner and Degreaser, Concentrated, 127.8 Fl Oz, Pack of 1, White
Simple Green 13005CT Industrial Cleaner and Degreaser, Concentrated, 127.8 Fl Oz, Pack of 1, White
Type of Cleaner: concentrated industrial cleaner and degreaser
Application Method: by hand or with cleaning machines
Effectiveness: removes tough dirt, grease, stains
Environmental Impact: biodegradable; EPA Safer Choice recognized
Ease of Use: liquid; easy to apply, needs dilution
Simple Green Pro HD Heavy Duty Cleaner Concentrate 1 Gallon Bottle
Simple Green Pro HD Heavy Duty Cleaner Concentrate 1 Gallon Bottle
Type of Cleaner: Heavy Duty Cleaner Concentrate
Application Method: Mix with water, scrub or pressure wash
Effectiveness: Cuts dirt and greasy buildup
Environmental Impact: Biodegradable
Ease of Use: Needs dilution and some effort
Related Products
30 Seconds Outdoor Cleaner 1000 Sq. Ft. Concentrate 5 Gal
30 Seconds Outdoor Cleaner 1000 Sq. Ft. Concentrate 5 Gal
Type of Cleaner: liquid cleaner concentrate
Ingredients: organic formula
Application Method: mix with water before applying
Environmental Impact: natural ingredients, safer environment
Ease of Use: requires mixing, large heavy container
Wet & Forget Outdoor Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Cleaner, Ready to Use, 64 Ounce
Wet & Forget Outdoor Moss, Mold, Mildew, & Algae Stain Remover Multi-Surface Cleaner, Ready to Use, 64 Ounce
Type of Cleaner: liquid, ready-to-use spray
Ingredients: bleach-free, non-acidic
Application Method: spray on dry surface, avoid rain
Effectiveness: removes moss, mold, algae stains
Environmental Impact: gentler, eco-friendly, caution near water
Ease of Use: easy, no scrubbing or rinsing
Wash Safe™ SPRAY & CLEAN Commercial-Strength Composite Deck Cleaner | Remove Black Stains | Cleans Up to 1,500 sq. ft. | Deep Set Cleaning, 1 Gal.
Wash Safe™ SPRAY & CLEAN Commercial-Strength Composite Deck Cleaner | Remove Black Stains | Cleans Up to 1,500 sq. ft. | Deep Set Cleaning, 1 Gal.
Type of Cleaner: Spray
Ingredients: Organic
Application Method: Spray
Environmental Impact: Eco-friendly
Ease of Use: Simple to apply
Krud Kutter KK326 Original Concentrated Cleaner/Degreaser Stain Remover Spray, 32 oz
Krud Kutter KK326 Original Concentrated Cleaner/Degreaser Stain Remover Spray, 32 oz
Type of Cleaner: concentrated cleaner
Ingredients: water-based, non-toxic
Application Method: liquid spray
Effectiveness: strong stain and grease removal
Environmental Impact: biodegradable, EPA certified
Ease of Use: easy to apply, may dilute
#10
Kärcher Wood Fence & Deck Cleaner, Removes Dirt and Grime from Wood, Composite, and PVC, Highly Concentrated, Makes up to 40 gal of Cleaner, Residue Free
Kärcher Wood Fence & Deck Cleaner, Removes Dirt and Grime from Wood, Composite, and PVC, Highly Concentrated, Makes up to 40 gal of Cleaner, Residue Free
Type of Cleaner: liquid cleaner
Application Method: pressure washers, manual, foam cannon
Effectiveness: removes tough dirt, grime, iron stains
Ease of Use: multiple methods; pressure washer best
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Buying Guide for the Best Cleaner For Trex Deck
Choosing the right cleaner for your Trex deck is essential to maintain its appearance and longevity. Trex decks are made from composite materials, which require specific cleaning products to avoid damage and ensure effective cleaning. When selecting a cleaner, consider the type of dirt or stains you need to remove, the ease of application, and the environmental impact of the product. Here are some key specifications to consider when choosing a cleaner for your Trex deck.Type of CleanerThe type of cleaner refers to the formulation and purpose of the product. There are general-purpose cleaners, mold and mildew removers, and specialized stain removers. General-purpose cleaners are suitable for regular maintenance and light dirt. Mold and mildew removers are designed to tackle organic growth, which is common in damp or shaded areas. Stain removers are formulated to address specific stains like grease, oil, or wine. Choose a cleaner based on the primary issue you need to address on your deck.
IngredientsThe ingredients in a cleaner determine its effectiveness and safety. Look for biodegradable and non-toxic ingredients to ensure the cleaner is safe for the environment and won't harm plants or pets. Avoid cleaners with harsh chemicals like bleach or ammonia, as they can damage the composite material of your Trex deck. Opt for cleaners with natural or mild ingredients that are specifically designed for composite decking.
Application MethodThe application method refers to how the cleaner is applied to the deck. Some cleaners come in a spray bottle for easy application, while others may need to be diluted and applied with a brush or mop. Consider how much effort you are willing to put into the cleaning process. Spray bottles are convenient for quick and easy application, while concentrated formulas may be more economical for larger areas but require more effort to apply.
EffectivenessEffectiveness is a measure of how well the cleaner removes dirt, stains, and mildew. Read reviews and product descriptions to gauge the cleaner's performance. Some cleaners may require multiple applications or scrubbing to achieve the desired results. Choose a cleaner that has a good reputation for effectively cleaning Trex decks and consider the severity of the dirt or stains you need to remove.
Environmental ImpactThe environmental impact of a cleaner is important if you are concerned about sustainability. Look for eco-friendly cleaners that are biodegradable and free from harmful chemicals. These cleaners are safer for the environment and reduce the risk of contaminating nearby water sources. If you have plants or a garden near your deck, choosing an environmentally friendly cleaner will help protect them from potential harm.
Ease of UseEase of use refers to how simple and convenient the cleaner is to use. Consider factors like the time required for the cleaner to work, whether it needs to be rinsed off, and if it requires any special tools or equipment. A cleaner that is easy to use will save you time and effort, making the cleaning process more manageable. Choose a cleaner that fits your preferred level of convenience and effort.