Cleaning plastic siding effectively requires simple tools and the right cleaning solutions, ranging from basic soap and water for light grime to vinegar-based mixtures for tougher mold and mildew. Regular cleaning not only enhances your home's curb appeal but also helps maintain the longevity of your siding.
Essential Cleaning Solutions
The primary goal is to remove dirt, grime, and environmental buildup without damaging the siding or surrounding landscape. Here are two effective homemade solutions:
| Cleaner Type | Ingredients | Use Case |
|---|---|---|
| Basic All-Purpose Cleaner | Approximately ¼ cup dish soap + 1 gallon water | General dirt, light stains, dust, and grime. Gentle and effective. |
| Mold & Mildew Buster | 30% White Vinegar + 70% Water | Specifically targets mold and mildew buildup. The vinegar's acetic acid cuts through these growths without harming nearby plants or grass. |
Tools You'll Need
Having the right equipment makes the cleaning process much easier and safer:
- Soft-bristled brush: Avoid stiff brushes or abrasive scrubbers that can scratch the siding.
- Garden hose with spray nozzle: For wetting and rinsing. A pressure washer can be used on a low setting (600-1000 PSI) with a wide-angle nozzle, keeping a safe distance to prevent damage.
- Two buckets: One for your cleaning solution, one for clean rinse water.
- Ladder (if necessary): For reaching higher areas safely. Ensure it's stable on even ground.
- Safety glasses and gloves: To protect your eyes and skin from cleaning solutions and debris.
- Drop cloths or plastic sheeting: To cover delicate plants or outdoor furniture if using stronger cleaners (though the vinegar solution is landscape-friendly).
Step-by-Step Cleaning Process
Follow these steps for a thorough and effective clean:
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Prepare the Area:
- Move any outdoor furniture, grills, or decorations away from the house.
- Cover plants, shrubs, and flowers with plastic sheeting or tarps, especially if you're using anything stronger than the basic dish soap solution.
- Close all windows and doors to prevent water from entering your home.
- Pre-rinse the siding: Use your garden hose to thoroughly wet down the entire area you plan to clean. This helps loosen dirt and prevents cleaners from drying too quickly.
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Apply Your Chosen Cleaner:
- For General Dirt: Apply the dish soap and water solution from a bucket using your soft-bristled brush, or use a pump sprayer for larger areas.
- For Mold and Mildew: Apply the 30% vinegar and 70% water solution directly to affected areas using a sprayer or sponge. Allow it to sit for 10-15 minutes to penetrate the growth.
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Gently Scrub the Siding:
- Starting from the bottom and working your way up, gently scrub the siding with your soft-bristled brush. This prevents streaks and allows the cleaner to work evenly.
- Pay close attention to areas with visible dirt, stains, or mildew.
- For stubborn spots, reapply the cleaner and let it sit for a few more minutes before scrubbing again.
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Rinse Thoroughly:
- Rinse the cleaned section from top to bottom with your garden hose. Ensure all cleaner residue is removed, as dried soap can leave streaks.
- Rinse any nearby plants or landscaping that may have come into contact with the cleaning solution, even if it's the landscape-safe vinegar mix.
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Repeat as Needed:
- Work in sections, especially on larger homes, to prevent the cleaning solution from drying on the siding before you can rinse it.
Important Tips for Best Results
- Work on a Cloudy Day: Cleaning on a sunny day can cause cleaning solutions to dry too quickly, leading to streaks and making it harder to rinse effectively.
- Test in an Inconspicuous Area: Always test any new cleaning solution on a small, hidden section of your siding first to ensure it doesn't cause discoloration or damage.
- Avoid Harsh Chemicals: Do not use abrasive cleaners, steel wool, or harsh solvents like paint thinner, as these can permanently damage plastic siding.
- Be Mindful of Pressure Washing: If using a pressure washer, use a wide-angle tip (25-40 degrees) and keep the nozzle at least 12-18 inches away from the siding. High pressure can force water behind the panels, damage seams, or even cause mold growth inside your walls. Always angle the spray downward, never upward.
- Wear Protective Gear: Safety glasses and gloves are crucial for protecting yourself from splashes and prolonged contact with cleaning agents. For more detailed safety advice, consider resources like the Occupational Safety and Health Administration (OSHA).
When to Call a Professional
While most plastic siding cleaning is a DIY task, there are instances when professional help might be warranted:
- Extensive Mold and Mildew: If mold has deeply permeated the siding or covers a vast area.
- Hard-to-Reach Areas: If your home has multiple stories or complex architectural features that make safe access difficult.
- Stubborn Stains: For stains that resist standard cleaning methods and may require specialized treatment.
- Time Constraints: If you lack the time or physical ability to undertake a full siding cleaning.
