Repairing a Leaking Gutter
Gutter joints, whether sealed with a rubber gasket or sealant, will deteriorate over time and leak. The repair shown here uses gutter or silicone caulk. For gutters without joints, cut out the damaged section and replace it with a piece that is at least 2 in (5 cm) longer.
Materials and Tools:
gutter or silicone caulk
Disassemble the gutter joint by unclipping the gutter length from the joint clip (Image 1).
Remove the adjacent length of gutter to give you clear access to the internal profile of the joint clip (Image 2).
Dust out the joint, making sure that it is clean and dry (Image 3).
Apply gutter or silicone caulk around the edge of the gutter's profile (Image 4).
Reassemble the joint, fixing the clips securely back in place (Image 5).
Wipe away any excess caulk with a cloth.