Composite decks have become a popular choice for homeowners due to their durability and low maintenance. However, with regular use, they can accumulate dirt, grime, and even mold, which can be challenging to remove. While pressure washing is a common solution, it may not be suitable for all types of composite decking. Perhaps you’re concerned about damaging your deck, or you don’t own a pressure washer. Whatever the reason, fear not.
How to Clean a Composite Deck without a Pressure Washer? To clean a composite deck without a pressure washer, start by sweeping or using a leaf blower to remove debris. Then, mix a cleaning solution of warm water and mild detergent, and scrub the deck using a stiff-bristled brush. Rinse with a garden hose.
In this blog post, we’ll explore effective ways to clean your composite deck without a pressure washer. So, grab a cold drink, and let’s dive in!
Materials needed

Cleaning a composite deck is an essential task that helps to maintain its appearance and prevent the buildup of dirt and grime. While using a pressure washer may seem like the most efficient way to get the job done, it can actually damage the composite material. Luckily, there are alternative methods to clean your composite deck without a pressure washer.
Here are the materials you will need to get the job done effectively and safely. By using the right tools and techniques, you can keep your composite deck looking its best for years to come.
To clean a composite deck without a pressure washer, you will need a few materials:
- A soft-bristled brush
- A bucket
- Cleaning solution (such as a composite deck cleaner or a mixture of water and mild detergent)
- Garden hose with a spray nozzle.
Avoid using a pressure washer as it can damage the surface of the composite deck. Instead, using these materials and following the proper cleaning technique can effectively clean your deck without causing any harm.
Steps for cleaning a composite deck without a pressure washer
Following are the steps for cleaning a composite deck using non-pressure methods to keep it looking its best for years to come.
Step 1: Sweep or blow off debris
The first step in cleaning a composite deck without a pressure washer is to remove any debris by sweeping or blowing it off the surface. This is important because debris can scratch the deck’s surface if left unattended, and can also create pockets of moisture that can lead to mold and mildew growth. By removing the debris first, you can ensure that the deck is clean and ready for deeper cleaning methods.
Step 2: Apply a composite deck cleaner
This is an essential step in removing dirt, grime, and stains from the surface of the deck. Choose a composite deck cleaner that is specifically formulated for use on composite decking and to follow the manufacturer’s instructions for use.
Applying the cleaner with a soft-bristled brush or mop and allowing it to sit for the recommended amount of time will ensure that the cleaning solution has time to penetrate the surface and break down dirt and stains.
Once the cleaning solution has done its job, it should be rinsed away thoroughly with a garden hose or bucket of water to reveal a clean, fresh-looking deck surface.
Step 3: Scrub the deck with a soft-bristled brush
Scrubbing will help remove any remaining dirt, debris, or stains that the cleaner may have missed. Be sure to use a brush that is gentle enough not to scratch the surface of the deck. A nylon brush is a good option. Scrub in the direction of the grain of the deck boards and rinse the brush frequently to avoid spreading dirt around.
Step 4: Rinse off the cleaner with a garden hose
Rinsing off the cleaner with a garden hose helps to remove any remaining dirt and grime that may have been loosened by the cleaner. It is important to use a garden hose with a high-pressure nozzle to ensure that all the cleaner is removed, leaving your deck looking clean and fresh. Once the deck is thoroughly rinsed, allow it to air dry completely before using it again.
Step 5: Allow the deck to dry completely
Any remaining moisture can promote the growth of mold and mildew, which can damage the deck over time. It is recommended to wait at least 24 hours before using the deck again after cleaning and drying. In order to speed up the drying process, it is suggested to use a fan or air blower.
Tips for Maintaining a Clean Deck

In the following paragraphs, we are discussing some tips and tricks to help you maintain a clean composite deck without damaging the surface or causing any harm to the environment. Let’s dive in and explore some of the best ways to keep your composite deck looking brand new.
Sweep or brush the deck regularly to prevent dirt buildup
Regular sweeping or brushing of your composite deck is essential to prevent dirt and debris buildup. This simple maintenance tip helps to ensure that your deck remains clean and free from mold and mildew growth, which can cause discoloration and degradation of the deck’s surface.
Sweeping or brushing the deck regularly makes it easier to clean with gentle, non-abrasive cleaners, eliminating the need for a pressure washer. With a little regular upkeep, you can keep your composite deck looking new and extend its lifespan.
Clean up spills and stains as soon as possible
The key to maintaining a clean composite deck is to clean up spills and stains as soon as possible. By doing this, you can prevent them from setting in and becoming more difficult to remove later on. Use a soft-bristled brush or a non-metallic scraper to gently remove any excess material, then clean the affected area with a mild detergent and warm water. Rinse thoroughly and allow to air dry.
Regularly cleaning up spills and stains can help keep your composite deck looking its best for years to come.
Use mats or rugs in high-traffic areas to prevent dirt and debris from accumulating
One effective way to maintain a clean composite deck is to use mats or rugs in high-traffic areas. This will prevent dirt and debris from accumulating and making it easier to clean your deck without a pressure washer. Using mats or rugs can also protect your deck from scratches and wear and tear. Just make sure to clean the mats regularly and avoid using rubber-backed mats, as they can cause discoloration on composite decking.
Conclusion
Safely clean your composite deck by using a mix of mild detergent and warm water. Scrub the deck with a soft-bristle brush, working in sections to avoid water stains. Rinse thoroughly with a garden hose, ensuring no residue is left behind.
After reading through the different methods of cleaning a composite deck without using a pressure washer, it’s clear that there are several effective options available. By using a combination of household cleaners, gentle scrubbing, and a bit of elbow grease, you can remove stubborn stains and dirt buildup to keep your deck looking great all year round.
Remember to always test any cleaning solution on a small, inconspicuous area of your deck before tackling larger stains. Moreover, consider using a protective sealant to prevent future buildup and prolong the life of your composite deck.
Essentially, the key takeaway is that maintaining a clean and well-maintained deck is essential for its longevity and overall appearance. By using these simple yet effective cleaning methods, you can easily keep your composite deck looking like new for years to come. Don’t hesitate to give these methods a try and enjoy a beautiful, clean deck all season long!
Frequently Asked Questions (How to Clean a Composite Deck without a Pressure Washer)
What is the best thing to clean composite decking with?
The best thing to clean composite decking is a mild detergent mixed with warm water. This solution can effectively remove dirt, grime, and stains without causing damage to the surface. It’s important to avoid using harsh chemicals or abrasive cleaners that could scratch or discolor the composite material.
Can you use vinegar to clean composite deck?
While vinegar is a natural cleaner and can be used for various household cleaning tasks, it’s not recommended to use vinegar to clean composite decks. Vinegar is acidic, and prolonged use can potentially damage the surface of the deck, especially if it has a protective coating.
It’s safer to stick to a mild detergent and warm water for cleaning composite decking.
How do you clean a deck without pressure washing it?
Cleaning a deck without pressure washing can be done by following a few steps. Start by removing any debris, such as leaves or twigs, using a broom or a leaf blower. Next, mix a solution of mild detergent and warm water. Scrub the deck surface with a soft-bristle brush or a mop, working in small sections.
Rinse off the cleaning solution with a garden hose or a bucket of water. Finally, let the deck dry thoroughly before placing any furniture or accessories back on it.
How do you clean composite decking?
To clean composite decking, begin by clearing the deck of any loose debris like leaves or dirt using a broom or a leaf blower. Next, mix a solution of mild detergent and warm water. Use a soft-bristle brush or a mop to scrub the deck surface, working in small sections.
Rinse off the cleaning solution with a garden hose or a bucket of water. Allow the deck to air dry completely before using it again. Avoid using abrasive tools or harsh chemicals that can damage the composite material.