Watch where the water begins to back up
During rain, follow the run towards the outlet. This can reveal whether the problem is a blockage or a gutter that has lost its fall.
A clean gutter can still hold water
If the brackets have dropped, water may sit in a low section even after all leaves and moss have been removed.
Look behind the fascia
A gutter can leak from the rear or from a failed joint without pouring over the front edge.
Need somebody to price the repair?
Tell the roofer what you have actually seen. Let the inspection decide whether the repair is local or whether a wider section needs attention.
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