Gutters: How to Fix Overflowing Gutters

An add-on splash guard prevent gutter overflows

Add a splash guard at the bottom of roof valleys to prevent gutter overflows during heavy rain storms. It's only takes 20 minutes.

By the DIY experts of The Family Handyman Magazine

Install a gutter splash guard

If rainwater cascading down your roof valley causes a waterfall that washes out the petunias every time it storms, do this simple fix. It costs only a few dollars and takes about 20 minutes to complete. You can find these precut splash guards (about $3) in both brown and white aluminum at a home center, but you could easily make your own out of aluminum or sheet metal and spray paint them to match your gutters. If you don’t own a Pop riveter, attach the guards with 1/2-in. sheet metal screws instead.

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Required Tools for this Project

Have the necessary tools for this DIY project lined up before you start—you’ll save time and frustration.

  • Drill/driver, cordless
  • Drill bit set

Required Materials for this Project

Avoid last-minute shopping trips by having all your materials ready ahead of time. Here's a list.

  • You'll also need a riveting tool.