Plastic shutters are a popular choice for homeowners seeking a low-maintenance, durable alternative to traditional wood. They resist warping, fading, and corrosion, making them ideal for coastal environments. However, they still accumulate dust, pollen, and grime over time. Learning how to clean plastic shutters properly ensures they retain their color and functionality for years.
Gathering the Right Supplies
Before you begin, assembling the correct tools is essential for an efficient and effective cleaning process. Avoid harsh abrasives that can scratch the surface and compromise the finish. The right equipment will make the task straightforward and prevent any damage to the material.
Essential Tools and Solutions
- Mild dish soap or a specialized vinyl cleaner.
- Two buckets (one for soapy water, one for rinsing).
- A soft-bristle brush or a sponge.
- A microfiber cloth or a soft towel.
- A garden hose with a spray nozzle.
Preparing the Area
Safety and preparation go hand in hand when tackling outdoor maintenance. You need to ensure the area is safe to access and that the shutters are in a position that allows for a thorough cleaning. Taking a few minutes to set up correctly saves time and effort in the long run.

Steps to Prepare
- Ensure the shutters are fully closed to access all slats easily.
- Clear the area below the shutters of furniture or delicate plants.
- Wear gloves to protect your hands from cleaning solutions and debris.
- Check the weather forecast; choose a cloudy day to prevent the soap from drying too quickly.
The Step-by-Step Cleaning Process
The actual cleaning process requires a gentle touch to maintain the integrity of the plastic. Rushing or using the wrong technique can lead to streaking or wasted effort. Following a systematic approach guarantees that every section is addressed without missing spots.
Cleaning Methodology
- Mix warm water with a few drops of mild soap in a bucket.
- Dip your soft-bristle brush into the solution and wring it out thoroughly.
- Gently scrub the shutters in a top-to-bottom motion, following the grain if they have texture.
- Rinse immediately with a hose to prevent soap residue from hardening on the surface.
Tackling Tough Stains
Over time, you might encounter stubborn marks from bird droppings, hard water spots, or mildew. Standard washing might not suffice for these specific issues. Addressing these problems requires a slightly more targeted approach to restore the original clarity of the plastic.
Handling Specific Issues
- Mildew: Create a solution of one part white vinegar to three parts water. Apply it to the affected area, let it sit for 15 minutes, then rinse.
- Hard Water Spots: Use a commercial lime scale remover or a paste of baking soda and water. Gently rub the spot until it disappears before rinsing thoroughly.
- Grease or Oil: Apply a small amount of isopropyl alcohol to a cloth and wipe the area before washing with soap and water.
Drying and Final Inspection
How you finish the cleaning process is just as important as how you started it. Allowing the shutters to air dry can leave behind water spots, diminishing the clarity of the plastic. A proper finish ensures a streak-free shine and protects the surface.

Final Steps
- Use a clean microfiber cloth to dry each slat thoroughly, especially the corners where water can pool.
- Inspect the shutters under natural light to spot any missed spots or residual streaks.
- Wipe the tracks and frames to remove any loosened dirt, keeping the mechanism functioning smoothly.
Maintenance Schedule and Best Practices
Establishing a routine is the key to keeping plastic shutters looking new. Frequent, light cleanings are more effective than infrequent deep cleanings. By incorporating simple habits, you can significantly extend the time between major deep cleans.
Proactive Care Tips
- Dust the shutters weekly with a soft, dry cloth or a feather duster to prevent buildup.
- Avoid using pressure washers, as the high stream can damage the plastic or force water behind the shutters.
- Inspect the shutters periodically for any cracks or loose fittings and address them promptly to maintain structural integrity.























