Heavy Summer Rains Can Lead to Flooding and Mold — Here’s How to Protect Your Property

Peter Oleynik
Jul 13
1 min read

While Seattle is known for its rain, heavy summer downpours can catch even the most prepared homeowners off guard. These intense, short bursts of rainfall can overwhelm homes — especially when sump pumps, gutters, or yard drainage aren't in top shape.

At Hydro Shield Restoration, we regularly respond to flooding issues across the Greater Seattle Area, often caused by:

✅ Common Summer Flooding Triggers:

Overwhelmed or Failed Sump PumpsSummer rainstorms can dump multiple inches of water in minutes. If your sump pump fails due to power outages, wear and tear, or lack of maintenance, water can quickly back up into your basement or crawl space.
Clogged Gutters & Misaligned DownspoutsWhen gutters overflow, water runs directly along your foundation — one of the most common entry points for moisture.
Backyard Pool & Hose OverflowsWe’ve seen many cases where overfilled pools or forgotten garden hoses flood patios, seep into siding, or find their way into basements and subfloors.

🛑 Don’t Ignore Water Intrusion — Mold Follows Moisture

Flooding is more than just water cleanup — mold can begin growing in as little as 24-48 hours if the water isn't properly dried and the affected materials aren’t removed or treated. Our Seattle-area climate already has higher humidity, which only makes the risk worse.