Downspouts channel water from your roof and gutters into the ground following a specific route so water doesn’t accumulate around your house’s foundation. Without a downspout, the standing water will wash away material and disrupt the soil, leading to foundation erosion. The standing water will also form ice around your house during cold weather, causing a safety hazard.

The cost to install a downspout extension or reroute a downspout generally falls between $30 and $200. The final price depends on factors like whether you DIY the project or hire a gutter professional, the complexity of your gutter system, and the length of the new extension. A simple, above-ground DIY installation can cost as little as $30 for materials. In contrast, a more complex project involving professional installation and digging trenches for underground piping could cost over $1,000. This is still a significant saving compared to replacing your entire gutter system, which costs around $1,900 on average.

The kind of gutter guards you have will affect how often you need to clean them. The more basic type of gutter screen requires cleaning once or twice a year. With a micromesh screen, you may be able to extend the time between cleanings to every two years or so.

However, if you have trees near your roof, you’ll need to clean your gutters more frequently, especially if you have chicken-wire or colander-type gutter guards. If you have pine trees near your roof, you may even need to clean your gutters quarterly, as tiny pine needles can get through any type of gutter guard.

If you want to avoid burying your downspouts, several alternatives can help direct water away from your home's foundation. One option is to connect a rain barrel to your downspout. During a storm, the barrel collects water that you can later use for irrigating your lawn or garden. Another common solution is to install an above-ground downspout extension. This can be done in a couple of ways:

• Splash Guards: Placing a splash guard, available at most hardware stores, under your downspout can act as a simple funnel to direct water away from the house.

• Downspout Extensions: You can add an extension to the end of the downspout's elbow to carry water further into your yard. Some extensions are flexible, allowing you to maneuver them around landscaping.

These above-ground solutions are particularly useful if your home has a slab foundation that you cannot dig up. However, they have limitations. An extension may not move water as far from your home as an underground system. More importantly, if your yard slopes back toward your house, these methods will be ineffective, and burying your downspouts remains the best option to prevent potential flooding and water damage.