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.