10 Best Decking Cleaners 2025 in the United States

The 30 SECONDS Outdoor Cleaner 2 Pack with Hose End Sprayer is designed to tackle stains from algae, mold, mildew, and moss on a variety of surfaces including vinyl siding, wood decks, patios, and brick. Its primary strength lies in its versatility, being effective on multiple surfaces such as concrete sidewalks, asphalt driveways, plastic outdoor furniture, and more. The cleaner is user-friendly, requiring no pressure washing—just spray it on and hose it off, making it convenient for those who prefer a simple cleaning method. Additionally, it is safe for lawns and plants when used as directed, ensuring it does not harm your landscaping which is a significant benefit for outdoor cleaning products.

It’s important to note that the cleaner is a spray form and comes with a hose end sprayer, which might limit its application method flexibility for some users preferring different dispensing methods. The cleaning power is robust, rapidly targeting organic growth stains, but for heavily stained or larger areas, multiple applications may be required. Its safety and compatibility with various deck materials make it a strong candidate for those needing an efficient and straightforward decking cleaner. Potential users should consider the specific needs of their cleaning tasks, especially regarding the cleaner’s liquid volume and the ease of handling a 4-pound container.

The Wet & Forget Outdoor Cleaner is a versatile liquid cleaner known for its effectiveness on multiple surfaces, including decks. It is designed to remove moss, mold, mildew, and algae without the need for scrubbing or rinsing. The cleaner's improved nozzle allows for easy attachment to a garden hose, making the application straightforward, especially with the jet and fan tips for different surfaces.

It is essential to apply it on a dry, cool day to ensure optimal results and to avoid rapid evaporation. Cleaning results vary, with green stains typically disappearing within a few weeks, while older, black stains can take several months to clear completely. This cleaner is bleach-free and non-acidic, making it a safer option for users and outdoor environments. However, it is crucial to keep it away from water bodies and to pre-rinse plants to avoid any potential harm.

Each bottle covers up to 2,000 square feet and can clean surfaces for up to a year, although very porous or heavily stained areas may require more product. While effective, results can take time, and its full cleaning potential may not be immediately visible. Patience is needed for long-established stains.

The Wet & Forget Moss, Mold, Mildew, & Algae Stain Remover is a versatile outdoor cleaner that works on various surfaces including decks, roofs, driveways, and patios. One of its major strengths is its ease of use; you simply mix it with water, apply it, and let the wind and rain do the cleaning with no scrubbing or rinsing needed. This makes it incredibly user-friendly, especially for those who might not have the time or ability to manually clean their decks and other surfaces.

The product is compatible with different materials such as wood, concrete, and vinyl, offering flexibility for various cleaning needs. It is also fragrance-free and unscented, which can be a plus for those sensitive to strong smells. Safety-wise, it requires application on a cool day and not before an expected rainfall, which might limit its use in certain weather conditions.

The cleaning power is effective but can be slow; while green stains may disappear within weeks, more stubborn black stains might take several months or up to a year. This could be a drawback for users looking for quick results. The 128 fluid ounce size provides a good quantity for multiple applications, and the product has no expiration, adding value over time. However, users should note that the cleaner's full effectiveness might not be immediate, especially for long-standing stains.