Symptoms
- Water spilling over the gutter edge during rain
- Visible leaves, twigs, or sludge sitting in the gutter
- Plants or moss growing in the gutter
Likely causes
- CommonLeaves and debris from nearby treesDebris settles in gutters, especially in fall, and blocks water flow to the downspout.
- PossibleRoof granules and dirt buildupFine debris can compact over time and form a sludge that also clogs downspouts.
- PossibleSagging gutter section holding debris and waterA low spot collects debris faster and drains poorly even when cleared.
What to do
- Set up a stable ladder and have someone hold or foot it for safety.
- Scoop out leaves and debris by hand or with a gutter scoop, working toward the downspout.
- Flush the gutter with a garden hose to check that water flows freely to and out of the downspout.
- Clear any clog in the downspout itself using the hose on high pressure from the bottom up, or a plumber's snake if needed.
- Check for sagging sections or loose brackets while you're up there and re-secure them.
- Consider gutter guards if clogging happens often, understanding they still need occasional cleaning.
- Set a seasonal reminder to clean gutters, typically spring and fall.
Tools and parts
- Sturdy ladder
- Gutter scoop
- Garden hose
- Work gloves
Gutter guardsSearch: “gutter leaf guards”
When to call a pro
Call a gutter cleaning service for tall homes, steep roofs, or if you're not comfortable on a ladder.
Safety
Use caution
Use a stable ladder on level ground, don't overreach, and have someone else present when working at height.