Living in the Pacific Northwest, we know it's not a matter of if the heavy rains will come, but when. As someone who spends my days repairing the aftermath of basement floods and roof leaks, I can tell you that 80% of water damage cases I see could have been prevented with just one afternoon of maintenance. Don't wait for the first storm warning to realize your gutters are clogged or your sump pump is dead. Use this professional checklist to bulletproof your home before the Seattle rainy season hits full swing.
The Repair Point Exterior Checklist
Your home's exterior is its first line of defense. If water can't flow away from your house, it will find a way into it.
Clean and secure gutters
Remove leaves and debris. Ensure downspouts extend at least 5 to 10 feet away from your foundation.
Inspect the roof
Look for missing, cracked, or curling shingles. Pay close attention to "flashing" around chimneys and vents—this is where 90% of roof leaks start.
Trim "danger" branches
Wind and heavy rain can bring down limbs. Trim any branches hanging over your roof to prevent structural damage during a storm.
Seal the gaps
Check the caulking around windows and doors. If it's peeling or cracked, moisture will seep into your wall cavities, leading to hidden mold.
Interior Systems: Your Last Line of Defense
If water gets near the house, these systems need to work perfectly.
1. The sump pump "bucket test"
Don't assume your sump pump works just because it's plugged in. How to test: Pour a five-gallon bucket of water into the pit. The pump should trigger automatically and discharge the water quickly. Pro tip: If you live in a flood-prone area of Seattle, invest in a battery backup. Storms often knock out power exactly when you need your pump most.
2. Check the foundation and crawlspace
Take a flashlight and head into the crawlspace. Look for standing water or damp soil. The smell test: If it smells musty, you already have a moisture problem. Vapor barrier: Ensure your plastic vapor barrier is intact and covering the ground completely.
Professional prep vs. typical homeowner prep
| Task | DIY standard | Repair Point level |
|---|---|---|
| Gutter check | Scoop out visible leaves | Flush with water to check for hidden clogs in underground lines |
| Window care | Closing them tight | Inspecting seals and applying waterproof silicone |
| Sewer lines | Doing nothing | Having a "main line" inspection to prevent backup during heavy rain |
| Emergency plan | Having a flashlight | Knowing exactly where the main water shut-off valve is |
Step-by-Step Guide: What to Do When a Storm Is 24 Hours Away
Use this as a last-minute "how-to" for protection before heavy rain and wind arrive.
Clear area drains
Ensure street drains near your driveway are clear of fallen leaves.
Secure outdoor furniture
High winds can turn a patio chair into a projectile that breaks a window.
Charge backup batteries
Ensure your phones and any battery-operated sump backups are at 100%.
Verify your "go-bag"
Keep your insurance policy number and our contact info for emergency water restoration in Seattle in a waterproof folder.
Frequently Asked Questions (FAQ)
How often to clean gutters in Seattle, whether you need a sump pump if you've never flooded, and what sandbags can and can't do.
How often should I clean my gutters in Seattle?
At least twice a year—once in late fall after the leaves drop and once in the spring. If you have overhanging evergreen trees, you may need to do it quarterly.
My basement has never flooded; do I really need a sump pump?
Soil saturation levels change. A particularly heavy "atmospheric river" storm can raise the water table higher than you've seen in a decade. It's better to have it and not need it than to wake up to a lake in your basement.
Can I use sandbags to stop water from entering my garage?
Yes, they are effective for diverting surface water. However, they won't stop hydrostatic pressure from pushing water through your foundation walls. For that, you need proper drainage.