Fix Loose Gutter Downspout

Water gets behind the gutter.
Fix loose gutter downspout. Patch small holes with roofing cement. Insert 2 style a elbows to flush the downspouts against the wall. For a long downspout give it additional stability and security with straps to the side of the home. To keep leaves and other debris from put strainer in each downspout opening.
You can buy gutter caulking compound online. Step 3 replace decayed downspouts. Put one screw in on either side of the downspout. Easy gutter fixes you can diy loose gutters.
Years ago spikes and ferrules were a common method for hanging gutters. Allow the insides of the gutters to dry out and brush leaking seams clean. Remove all gutter spikes from along the loose or sagging areas of your gutter using a drill. Apply silicone or special gutter caulking compound along the seams on the inside and outside to seal the leaks as shown above.
If water is dripping behind your gutter it s probably because it was installed without. They do the job all right but. Using the sheet metal screws and the drill drive two screws into the top of the downspout attaching it to the gutter. These short screws are visible from the front of the gutter farthest from the house and pass through.
If the downspout is loose replace or reattach the downspout straps which are metal brackets that screw into the side of the house to hold the downspout in place.