Why Does Rain Pour Over My Gutters During Storms?

If you’ve ever watched rain pour straight over the edge of your gutters during a storm, you’re definitely not alone. It’s one of the most common issues Arizona homeowners face once monsoon season hits. After months of dry skies, the sudden bursts of heavy rainfall overwhelm gutters that are clogged, undersized, or improperly installed.

At CR Gutters, Inc.™, we see this problem constantly — water spilling over the roofline, splashing against stucco, and pooling around the foundation. While it may not look serious at first, that overflow can lead to cracks, soil erosion, peeling paint, and long-term damage. The good news? Once you know what’s causing it, the solution is usually straightforward.

Why Gutters Overflow in Arizona Storms

Monsoon rain falls fast — sometimes faster than your gutter system can handle. Here are the most common causes behind those overflowing “waterfalls” along your roof:

• Clogs from dust and leaves — Desert dust mixes with needles, twigs, and grit, forming heavy blockages that stop proper flow.
• Improper slope — Gutters need the right pitch so water drains toward the downspout. Even a slight misalignment causes pooling and overflow.
• Gutters that are too small — Many older homes have 5-inch gutters that simply can’t keep up with Arizona’s intense rainfall. Upgrading to 6-inch seamless gutters makes a major difference.
• Too few downspouts — Without enough drainage points, large sections of gutter become overwhelmed and spill over the edges.

When gutters can’t carry water away fast enough, they stop doing their job — and instead send water toward your foundation, landscaping, and stucco.

What You Can Do Before the Next Storm

Simple maintenance goes a long way. Cleaning your gutters once or twice a year helps prevent buildup. Before monsoon season, take a hose and run water through the system. If it isn’t draining properly, you may have a blockage or slope issue.

If water spills over the entire edge — even after cleaning — the gutters are likely too small to handle monsoon rainfall. A standard cleaning costs around $200–$400, while upgrading to a seamless 6-inch system typically runs $3,000–$6,000. It’s an investment that pays for itself by preventing foundation damage and structural issues.

Keep Your Home Safe from Arizona Storms

Arizona’s weather puts every part of your home to the test — extreme heat, months of dust, then rapid downpours. The right gutter system protects you from all of it. Seamless gutters hold up especially well here because they resist leaking, handle high water volume, and require minimal maintenance.

CR Gutters, Inc.™ has installed and serviced thousands of systems built specifically for Arizona homes. Whether you need a quick cleanout or a full upgrade, we’ll make sure your gutters are ready for the next storm.

If you’re tired of watching water pour over your roofline, call us at (602) 671-3476. We’ll inspect your gutters, identify the cause, and install a system that keeps your home dry, clean, and protected — season after season.