There are several ways to tell if your gutter downspout drain is backed up. The most obvious sign is when you see water flowing over your gutter edges. This can occur during everything from light rain to a rainstorm. Additional signs can include peeling paint around your downspout, visible dirt around your downspout, and moisture on the side of the house. If you're having ongoing problems with clogs caused by a poorly designed or worn-out gutter system, consider getting a quote for gutter replacement cost.

It’s recommended that you clean your gutters after a severe storm, however, regular storms don’t raise the same concerns. Look for signs your gutter might need cleaning after a harsh storm. Do you see broken branches and excessive leaves all over your yard? Chances are your gutters caught quite some debris. Also, ensure a few drying days before cleaning your gutters. Dry debris is much easier to clean.

The cost to clean gutters usually ranges from  $120 to $230, depending on the type, length, and location. Seamless gutters usually come in at the lower end of that range since the lack of seams means there are fewer places for debris to build up. In fact, seamless gutter cleanings usually cost 10% to 25% less than sectional gutter cleanings.

Buried downspouts can freeze during cold weather as cold water runs through them. If you’ve discovered your downspouts are frozen, you can carefully pour hot water down the top of the downspout to defrost them. If that doesn’t work, you may need to dig your downspout back up. Avoid trying to break the ice from the exterior using a hammer as this can cause cracks and damage to your downspout.

To avoid freezing the future, consider adding a heating cable to the exterior, which can adjust heat based on the surrounding temperature.