Composite Decking Cleaner: Guide to Maintaining Your Deck’s Beauty

  • Post published:July 22, 2023
  • Post category:deck
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Best Deck Cleaning Products

Having a beautiful composite deck is a source of pride for homeowners, but to ensure its longevity and visual appeal, proper maintenance is essential. The composite decking cleaner is a key player in keeping your deck looking its best, removing dirt, grime, mold, and other stubborn stains. In this comprehensive guide, we will explore everything you need to know about composite decking cleaners. From understanding their components and working mechanisms to highlighting the top products in the market, we’ve got you covered. So, let’s dive in and unlock the secrets to a well-maintained, attractive composite deck.

Composite decked porch clean.

What is a Composite Decking Cleaner?

Composite decking cleaner is a specially formulated cleaning solution designed to remove tough stains, grease, and debris from composite decks. Unlike traditional wood decks, composite decks are made from a combination of wood fibers and recycled plastics, which require different care and maintenance. The composite decking cleaner is specifically tailored to protect the integrity of these materials while effectively cleaning and rejuvenating the deck’s surface.

Fact: Powerwashing can ruin a deck no matter the material, wood or composite.

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Understanding the Components of Composite Decking Cleaners

Most composite decking cleaners contain a blend of powerful components to target different types of stains and buildup. Some common components found in these cleaners include:

  • Surfactants: These help to break down surface tension, allowing the cleaner to penetrate deep into the composite material and lift stains.
  • Oxidizers: Oxidizing agents like hydrogen peroxide or sodium percarbonate are effective in removing organic stains like mold and mildew.
  • Alkaline or Acidic Agents: Depending on the brand and formulation, composite decking cleaners may contain either alkaline or acidic agents to dissolve specific types of stains, such as grease or mineral deposits.

The Importance of Using a Composite Decking Cleaner

Using a composite decking cleaner is crucial for several reasons:

  • Maintaining Aesthetics: Regular cleaning with the appropriate cleaner keeps your deck looking fresh and attractive, enhancing the overall curb appeal of your property.
  • Preventing Mold and Mildew: Composite decking cleaners help remove and prevent the growth of mold and mildew, which can cause discoloration and compromise the deck’s structure.
  • Extending Lifespan: Proper maintenance with a decking cleaner can extend the lifespan of your composite deck, saving you money on repairs and replacements.
  • Safety: Keeping your deck clean reduces the risk of slips and falls due to accumulated grime and algae, ensuring a safer environment for your family and guests.
Wooden brush

How to Choose the Best Composite Decking Cleaner

Selecting the right composite decking cleaner is vital to achieving the best results. Here are some factors to consider when making your choice:

  • Deck Material Compatibility: Ensure the cleaner is compatible with composite materials and won’t cause any damage or discoloration.
  • Stain-Removal Effectiveness: Look for a cleaner that targets the specific stains you commonly encounter on your deck.
  • Environmentally Friendly: Opt for eco-friendly and biodegradable cleaners to minimize environmental impact.
  • Ease of Application: Choose a cleaner that is easy to apply and doesn’t require excessive scrubbing or laborious application processes.
composite deck cleaner, eco-friendly deck cleaner

Top 5 Composite Decking Cleaners in the Market

    • DeckWise Composite Deck Cleaner

Product Description: DeckWise Composite Deck Cleaner is a top-rated, eco-friendly option that effectively removes tough stains without harming the environment or your deck’s surface. Its gentle yet powerful formula ensures a thorough clean, leaving your composite deck looking brand new.

    • DEFY Composite Deck Cleaner

Product Description: DEFY Composite Deck Cleaner is a trusted brand known for its mold and mildew removing properties. Its advanced formula lifts deep stains and discoloration, restoring your deck’s original beauty and protecting it from future buildup.

    • Simple Green Composite Deck Cleaner

Product Description: Simple Green Composite Deck Cleaner is an all-purpose cleaner suitable for a wide range of surfaces, including composite decks. Its versatility and effective cleaning power make it a popular choice among homeowners.

    • Thompson’s WaterSeal Deck Cleaner & Brightener

Product Description: Thompson’s WaterSeal Deck Cleaner & Brightener is a two-in-one solution that not only cleans but also brightens your composite deck. Its unique formulation revitalizes dull surfaces, leaving them looking refreshed and vibrant.

    • Olympic Premium Deck Cleaner

Product Description: Olympic Premium Deck Cleaner is a concentrated solution that offers excellent value for money. With a simple dilution process, you can clean large deck areas effectively, making it an ideal choice for spacious decks.


Manufacturer’s Warranty on Cleaning

Make sure to check with the decking brand you will be cleaning to see if you will be voiding the warranty. Warranty information by clicking the brand.

Tips for Using Decking Cleaners Effectively

Cleaning your composite deck properly involves more than just applying the cleaner. Here are some tips for achieving the best results:

  • Preparation is Key: Sweep your deck to remove loose debris before applying the cleaner to ensure a more effective cleaning process.
  • Test in a Small Area: Before using any new cleaner on your entire deck, test it in a small, inconspicuous area to check for compatibility and any adverse reactions.
  • Follow Instructions Carefully: Read the manufacturer’s instructions and follow the recommended application process for optimal results.
  • Use the Right Tools: Soft-bristled brushes or scrubbing pads are gentle enough to clean without causing damage to the composite surface.
  • Rinse Thoroughly: After cleaning, make sure to rinse your deck thoroughly to remove any residue from the cleaner.

FAQs About Composite Decking Cleaner

It’s recommended to clean your composite deck at least twice a year, ideally in the spring and fall, to remove seasonal buildup and prevent mold growth.

While pressure washers can be used with caution, it’s essential to keep the pressure at a low setting and maintain a safe distance from the deck surface to avoid damage.

Most composite decking cleaners are formulated to be safe for the environment and should not harm pets or plants when used as directed. Read all warnings on labels to be sure.

It is generally not recommended to use bleach on composite decks, as it may cause discoloration and damage the surface.

For tough stains, consider using a composite deck cleaner with added stain-removing power or use a soft-bristled brush for more persistent stains.


Taking care of your composite deck is essential to preserve its beauty and longevity. Using a high-quality composite decking cleaner is the key to maintaining its pristine appearance and protecting it from potential damage. Remember to choose the right cleaner, follow the instructions diligently, and incorporate regular cleaning into your deck maintenance routine. With the proper care and attention, your composite deck will remain a source of joy and admiration for years to come.

If you’re in need of a deck cleaning in Atlantic County, New Jersey, contact us today to schedule a free estimate.

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