In the lush, rainy environment of the Pacific Northwest, awnings take a beating from the elements year-round. Whether you have a fabric, metal, or retractable awning on your home or business, keeping it clean is essential for longevity, curb appeal, and preventing damage. But how often should you actually clean your awning in Seattle’s unique climate?

Why Seattle’s Climate Demands Special Attention

Seattle sees an average of 150 rainy days per year, not to mention stretches of damp, overcast conditions. This constant moisture creates a prime environment for:

• Moss and algae growth
• Pollen and leaf debris buildup
• Mildew and fabric staining
• Rust and corrosion on metal components

If left untreated, these issues can lead to costly repairs or premature replacement of your awning.

Recommended Awning Cleaning Frequency

At Sound Cleaning Resources, we recommend the following cleaning schedule for awnings in the Seattle area:

• Residential Awnings:
  At least once per year, ideally in the Spring, after the rainy season but before peak pollen buildup. If your home is near trees or in a shady area, a Fall cleaning may also be beneficial to remove leaves and moss.
• Commercial Awnings:
  Two to four times per year, depending on foot traffic and visibility. For storefronts or restaurants, cleanings every 3–6 months help maintain a professional appearance and comply with local health and safety standards.

Signs Your Awning Needs Cleaning Sooner

Watch for these indicators that it’s time to schedule a cleaning:

• Green, black, or brown patches (moss, mildew, or algae)
• Water not running off properly (possible debris buildup)
• Noticeable fading or discoloration
• A musty odor around the awning area

Preventive Tips Between Cleanings

• Trim back nearby trees and shrubs to reduce leaf and sap accumulation
• Gently hose down the awning every few weeks in dry weather
• Avoid using harsh chemicals or pressure washers, which can damage fabric and seams

Professional Cleaning Makes a Difference

While a quick rinse can help, professional awning cleaning services use industry-safe solutions and techniques designed specifically for Seattle’s climate. At Sound Cleaning Resources, we safely remove moss, mildew, and pollutants without compromising your awning’s materials or structure.

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Want to extend the life of your awning?
Contact us today to schedule a seasonal awning cleaning for your Seattle home or business.