Why Is Moss Growing Inside or Along My Gutters?

If you’ve lived in Washington for a bit, you probably know how moss behaves. It doesn’t wait for an invitation. It just… shows up. On roofs, wood fences, the steps outside, and then one day you look up and it’s sitting in your gutters too. It doesn’t need much. A shaded spot and some moisture that never really dries. A little leftover debris helps it along. That’s usually when people call CR Gutters, Inc.™ and say something like, “I saw a tiny green patch yesterday and now it looks bigger.” And they’re not imagining it. Moss hangs on to water for hours, so the gutter stays damp long after the rain stops. Perfect growing conditions.

It’s odd how fast it spreads. One day it’s just on the rim of the gutter. Then it’s inside. Slowing the water. Catching every little thing that falls into it. And then it feeds itself because the trapped debris becomes more material for the moss to grow on.

Why It Happens So Easily Here

Moss likes cool and shaded places. Washington gives it both without trying. Homes with tall trees nearby get even more of it. The branches keep the sun away and drop pine needles or leaves right into the gutter. Moss treats that like bedding.

Most people notice something small first, but don’t always connect the dots:

• A light green smudge
• A soft film inside the gutter
• Slower drainage
• Little tufts creeping toward the shingles

If it reaches under the shingles, it’s been there longer than you think.

What Usually Takes Care of It

The first step is pretty straightforward. Clean everything out. Once the gutter is cleared and can finally dry, moss has a harder time settling back in. After that, most homeowners use a rinsing treatment once a year. Nothing fancy. Just something that helps wash away the spores that would normally stick around. Here in our climate, that once-a-year routine actually makes a big difference.

Cleanings usually fall somewhere around $250 to $450, depending on the house, and treatments tend to start near $150.

When It Becomes More than Just Moss

Moss seems soft, so people don’t always take it seriously. But when it blocks outlets or slips under shingles, it holds water exactly where you don’t want water sitting. That’s when you start seeing stains or small leaks or water spilling in odd spots during a storm. These changes happen slowly, almost quietly.

When You Want Help

If you’re starting to notice little patches of moss in your gutters or you just want to get ahead of it before it spreads, CR Gutters, Inc.™ can take care of the cleaning and the treatment for you. Moss can sneak up on anyone in Washington, so you’re not alone. A quick visit is often all it takes to get everything cleared out and drying the way it should again.

You can call (253) 447-1419 to set up a time that works for you or simply ask what might be the best approach for your home.