Clean any caulk or adhesive from both parts of the joint using a stiff wire brush.
How to seal a leaking gutter like a professional.
Time after time we see the failed efforts of well intentioned diy ers head up the ladder and attempt to silicone and spray their way to success.
Tips for best results before you do anything make sure your gutter is clean.
How to flex seal your gutter.
Let dry and repeat until all holes are filled.
Clear all debris out of the gutter miter.
See below for a shopping list and tools subscribe to this old house.
If the precise source of the leak isn t clear spray the area with a garden hose to identify the crack hole or gap where water is seeping out of the miter.
Apply a bead of silicone caulk to one of the parts at the joint area then reassemble the gutter system.
While not a permanent fix you can generally get another season or two out of the gutters as long as the damage isn t extensive by applying a silicone or rubber gutter caulk or sealant.
Remember this is the inside of a gutter no one looks here.
Use a little water to spread it out nicely.
This old house general contractor tom silva has a fast fix for a dripping rain gutter.
Identify the leaking seam.
Gutters are a series of pieces of metal or plastic set inside one another much like shingled roofs.
Better to get it right than to have it leak again.
Take an abrasive pad or wire brush and scrub the debris away from the leaky area.
Here is how to properly seal any type of gutter miter.
Prepare by cleaning drying and taping off area.
One of the most common repairs we complete out in the field is to seal leaky gutters.
If there is a gap in the joint you should use your cardboard or plastic spreader to force sealer into the joint.
Replace the rubber gaskets on vinyl or pvc gutters.
However more often then not weeks or even days later the leak returns to the befuddlement of the home owner.
Add any necessary fasteners or connectors.
Use your fingers and get the sealant right into the seam and up both inside walls of the gutter.
If there is a strong rain you can probably spot the seam that needs repair because the water will be flowing out of it and the ground will be sopping wet below.
You don t want to cause a restriction.
