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Monsoon Flooding in the West Valley: A Homeowner’s Guide

Arizona’s monsoon season runs from June 15 through September 30. Even if you live far from a river, a single storm can put water into your garage, living room or attic.

Monsoon storm clouds over a West Valley neighborhood
Monsoon storm clouds over a West Valley neighborhood

Why the desert floods so fast

Dry, compacted desert soil and paved surfaces shed rain quickly. Storm water runs into washes, streets and low spots, then against garage doors and block walls. Homes in newer subdivisions around Buckeye, Goodyear and Surprise can be surprised by how quickly a street fills.

Before the storm: prepare

  • Clear gutters, roof valleys and yard drains
  • Check that the ground slopes away from your foundation
  • Inspect roof tiles, flashing and vent penetrations for gaps
  • Keep sandbags and a small submersible pump on hand if you live near a wash
  • Move valuables off garage floors onto shelves

During the storm: stay safe

Never drive through flooded roads, since a foot or two of moving water can carry a vehicle. Stay away from washes during and after storms because they can flood without rain overhead. If water enters the house, stay out of rooms with standing water near outlets and appliances.

After the storm: respond quickly

Floodwater that enters from outside is usually contaminated, so wear boots and gloves and avoid contact. Photograph everything, then call a provider for flood damage cleanup. Porous materials like carpet and pad that touched floodwater are normally removed.

Roof leaks vs flooding: insurance treats them differently

Water that falls through a storm-damaged roof is often treated differently from groundwater entering at floor level. Most standard policies exclude flood, which usually requires a separate National Flood Insurance Program or private policy. New flood policies commonly carry a waiting period of about 30 days, so do not wait until a storm is forecast. See our insurance claims help page.

Dry out and prevent mold

Humidity rises during monsoon season, and wet materials can support mold within 48 hours. Proper structural drying and dehumidification and mold prevention steps keep a flooded room from becoming a bigger problem.

Quick answers

Do I need flood insurance in the West Valley?

Flood damage is typically excluded from standard homeowners policies. Ask your agent whether you are in a flood zone and whether flood coverage makes sense.

Can I clean up floodwater myself?

Small clean-up is possible with protection, but contaminated water and wet drywall or carpet are best handled by professionals.

Need help now?

If water is already in your home, call (786) 928-1890 for 24/7 help in the West Valley. See our emergency water damage restoration service.

West Valley Water Damage is a referral service. Information here is general and not legal, insurance or engineering advice.

Water on the floor? Don’t wait.

Every hour water sits, it spreads into drywall, subfloor and insulation. Call now to be connected with a local restoration provider.

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