How to Repair a Leaky Gutter

1-2 hours

Learn to simply repair your leaky gutter

Repair a Leaky Gutter

A typical place for leaks to occur in the gutter system is at the downspout joints. Over time, gravity can cause joints to open up, or they can get jostled from below and come loose. This guide will teach you a few simple repairs that will keep your downspout joints tight and reliably leak-free for many years.


Remove Connecting Hardware
Remove Connecting Hardware - Repair Leaky Gutter

Remove any screws or connecting hardware at the joint and then disassemble the leaking portion of the downspout. You may need to remove other gutter or downspout sections near the leaky joint first.

Clean the Joints & Replace the Gaskets
Clean Joints Replace Gaskets  - Repair Leaky Gutter

Clean any caulk or adhesive from both parts of the joint using a stiff wire brush. Replace the rubber gaskets on vinyl or PVC gutters.

Apply Silicone & Reassemble
Apply Silicone Reassemble - Repair Leaky Gutter

Apply a bead of silicone caulk to one of the parts at the joint area, then reassemble the gutter system. Add any necessary fasteners or connectors.