If you’ve lived in the Seattle area for more than a year, you know what’s coming—months of steady drizzle, dark mornings, and damp air that seems to creep into every corner of your home. The transition from our beautiful, mild summers to the long, wet winter can catch homeowners off guard, especially when it comes to keeping things clean and healthy indoors.
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At Seattle Cleaning, we always recommend a deep clean before the rainy season. Why? Because once the moisture settles in, homes become prime breeding grounds for mold, mildew, and indoor air quality issues. Whether you own a waterfront home in Kirkland (98033) dealing with constant dampness or an older house in Tacoma (98402) where dust and allergens accumulate in the vents, getting ahead of the season is key.
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Here’s why now is the perfect time for a deep clean—and what areas need extra attention before the rain rolls in.
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Moisture + Dirt = The Perfect Storm for Mold & Mildew

Seattle’s winter air is damp—there’s no way around it. But when that moisture meets trapped dust, pet dander, and leftover summer grime, it creates the perfect environment for mold and mildew to thrive. Bathrooms, basements, and kitchens are especially vulnerable, but condensation on windows and walls can lead to hidden mold growth in places you don’t usually check.
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A pre-rainy season deep clean removes built-up dust and bacteria before the damp air locks it in. This means scrubbing down bathrooms, wiping down walls, and tackling hidden spots where mold spores love to settle—like inside cabinets, along baseboards, and around window sills.
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Waterfront Homes Face Extra Moisture Challenges

If you live near Lake Washington or have a waterfront property in Kirkland or West Seattle, your home already battles higher humidity levels year-round. When the rainy season kicks in, excess moisture can seep into walls, carpets, and furniture, leading to musty odors and mold growth.
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Before the season starts, a deep clean should include:
✔ Steam-cleaning carpets and upholstery to remove any trapped moisture.
✔ Checking for mold in hidden areas like behind furniture and inside closets.
✔ Cleaning out vents and air ducts to prevent mold spores from circulating.
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For homes with hardwood floors, moisture buildup can cause warping. Keeping floors dry and well-maintained now can prevent costly repairs later in the season.
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Older Seattle Homes Need Extra Attention

If you live in a historic home in Tacoma (98402) or an older neighborhood like Capitol Hill, you know that charm comes with a little extra upkeep. Many older homes have poor ventilation, meaning dust, pet dander, and airborne allergens settle deep into carpets and furniture—causing indoor air quality to plummet once winter hits and windows stay shut.
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Deep cleaning before the rainy season helps by:
✔ Removing built-up dust and allergens that worsen indoor air quality.
✔ Cleaning baseboards, vents, and fans that collect dust over the summer.
✔ Checking for drafts or leaks where moisture can creep in.
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For homes with fireplaces, now’s also the time to clean them out—because nothing’s worse than realizing your chimney is full of soot the first time you go to light a cozy winter fire.
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Don't Forget the Exterior—Rain Will Find Every Weak Spot

It’s easy to focus on the inside, but a little exterior maintenance before the rain sets in can save you from bigger headaches later. Cleaning gutters, downspouts, and outdoor walkways prevents water buildup and potential flooding. If you have a deck or patio, pressure washing now keeps moss and grime from becoming a slippery hazard all winter long.
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Let Seattle Cleaning Handle the Dirty Work

Deep cleaning before Seattle’s rainy season isn’t just about making your home look good—it’s about keeping it healthy, fresh, and free of mold, allergens, and moisture issues.
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Whether you’re in a lakeside home in Kirkland, a historic Tacoma house, or a modern condo in Bellevue, our team at Seattle Cleaning can help you get ahead of the season.
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📍 Serving Seattle, Bellevue, Kirkland, Redmond, Issaquah, Renton, Woodinville, Sammamish, Tacoma, and beyond!
📞 Call us today for a free quote and let’s get your home winter-ready! 206-888-6959

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