Gutters and downspouts collect and carry away rainwater that would otherwise run off the roof, splash down and erode the soil and stain the siding. More important, gutters and downspouts form the first line of defense against a wet basement or crawl space: If you let water collect along the foundation, hydrostatic pressure will build, and water will eventually find its way inside the house. It's equally important to keep the ground around a hillside home dry. For these reasons it's important that your gutters are in proper working order. Here, we'll show you how to patch a hole, seal a leaky corner joint and secure a gutter that's pulled away from the house. Fix these problems as soon as they occur and your gutters will work more effectively and last many years longer.