Your Fall Rain-Ready Checklist: Gutters, Moss & Drainage for Eastside Homes

Fall home maintenance is the best protection your house has against our long rainy season. Every October, I get the same call from a few clients: “Ali, there’s water where there shouldn’t be.” After 30 years of living in Seattle and on the Eastside, and a good part of my career spent around construction, I can tell you that most of those calls are preventable. Our rain doesn’t usually arrive as one dramatic storm. It arrives as weeks of steady, soaking drizzle, punctuated by a few atmospheric rivers that test every gutter, downspout and grading decision on your property.

Whether you own a mid-century rambler in Bellevue, a newer townhome in Redmond, or a condo with a shared roof in Kirkland, fall is the season to get ahead of moisture. Here’s the checklist I walk through on my own home and share with my clients.

1. Clean and test your gutters, then clean them again

Our big-leaf maples and Douglas firs are beautiful, but they are relentless. Needles and leaves pack into gutters and form a mat that holds water against your fascia boards. Over a few winters, that is how rot starts.

• Clean once in mid-October and again after the leaves finish dropping, usually late November on the Eastside.
• Run a hose through every downspout. If the water backs up, there’s a clog in the elbow or the underground line.
• Check that downspouts discharge at least a few feet from your foundation, or into a working drain line. Splash blocks are inexpensive insurance.
• Look at the gutter slope. Standing water a day after rain means a section has sagged and needs re-hanging.

If you have tall trees overhead, gutter guards can reduce the work, but they are not “set and forget.” Fir needles still collect on top of many guard styles.

2. Deal with roof moss before it deals with your roof

Moss is practically the official plant of the Pacific Northwest, and it loves north-facing, shaded roofs. Left alone, it lifts the edges of composition shingles, holds moisture, and shortens the life of your roof.

• Don’t pressure-wash shingles. It strips the protective granules. Gentle brushing from the top down is safer for the roof.
• Use a moss treatment appropriate for your roof type, and protect plants, gutters that drain to the lake, and painted surfaces. Many Eastside homes drain toward sensitive creeks and Lake Washington, so choose products carefully.
• Consider zinc or copper strips near the ridge as a long-term deterrent.
• Trim back overhanging branches to let in more light and air.

If you’re not comfortable on a ladder, and most of us shouldn’t be on a wet roof, hire a licensed, insured roofing or moss-removal company. Ask whether they’ll include a quick photo report of flashing, vents and any damaged shingles.

3. Walk the grading around your foundation

This is the item I see overlooked most, and it’s the one that causes the most expensive surprises. Soil should slope away from your house. Over time, landscaping, settling and bark mulch can create low spots that send water straight toward your foundation.

• Walk your perimeter during an actual rain. Watch where water goes. It tells you more than any checklist.
• Keep soil and mulch several inches below siding so wood isn’t in constant contact with wet ground.
• Check window wells for leaves and make sure their drains are clear.
• Locate your yard drains and catch basins and clear them before the heavy rains arrive.

4. Look under the house: crawlspaces and basements

Many homes in Kirkland, Bellevue, Bothell and Seattle sit over a crawlspace. You don’t have to love going down there, but once a year you should, or have someone do it for you.

• Vapor barrier: the plastic sheeting should cover the soil fully, without large gaps or tears.
• Standing water: any pooling suggests a drainage problem that’s worth addressing before winter.
• Insulation: sagging or wet insulation under the floor is a sign of moisture or pests.
• Sump pump: if you have one, pour in a bucket of water and confirm it switches on and discharges properly.

5. Seal the small gaps that let big water in

From my construction background, I’ll share a simple truth: water is patient. It finds the gap you didn’t caulk.

• Inspect caulking around windows, doors and siding penetrations (hose bibs, dryer vents, cable entries).
• Check the weather stripping at exterior doors, light showing at the bottom means air and water can get in.
• Look at the flashing above windows and where decks attach to the house. Deck ledger leaks are a common and costly issue.

6. Prepare for the wind, too

Fall and winter windstorms are part of life here, especially in heavily treed neighborhoods from Sammamish to Woodinville. Have an arborist look at any large tree that leans toward the house or shows dead limbs. Make sure you know how to manually open your garage door if the power goes out, and keep flashlights and a basic outage kit where you can find them in the dark.

7. Interior moisture: the quiet half of the story

Closed-up homes in a damp climate trap humidity from cooking, showers and even breathing. Run bathroom fans during and after showers, use your kitchen hood, and consider a hygrometer, an inexpensive gauge, to track indoor humidity. Condensation pooling on window sills each morning is a sign the house needs more ventilation.

Why this matters for your home’s value

When I help sellers prepare to list, the homes that inspect cleanly are almost always the ones where owners kept up with these small seasonal tasks. Buyers and their inspectors on the Eastside look closely at roofs, crawlspaces and drainage. A well-maintained home doesn’t just avoid repair bills, it protects your negotiating position when it’s time to sell.

And if you’re a homeowner who isn’t planning to sell for years, the same logic applies. Water damage is one of the most common sources of costly repairs. An afternoon or two each fall is a small price to pay.

Your quick fall checklist

1. Clean gutters (twice) and flush every downspout.
2. Treat roof moss gently; trim overhanging branches.
3. Confirm soil slopes away from the foundation.
4. Inspect the crawlspace, vapor barrier and sump pump.
5. Refresh caulking and weather stripping.
6. Have large trees assessed and prepare an outage kit.
7. Manage indoor humidity with fans and ventilation.

Let’s talk about your home

If you’re wondering what a repair could mean for your home’s value, or you’re thinking about selling in the spring and want to know which projects are worth doing this winter, I’m happy to walk through your home with you. My background in construction means I’ll give you an honest read, not a sales pitch.

Call or text me at (206) 510-5909, email aliveiseh@windermere.com, or visit aliveiseh.com. I serve Kirkland, Bellevue, Redmond, Seattle and communities throughout the Eastside and south Snohomish County.

Ali Veiseh, Windermere Real Estate / East, Yarrow Bay