You can cut out the larger hole with a tin snips or you could use an oscillating multi tool equipped with a metal cutting blade.
Repairing holes in steel gutters.
Buy a tube of roofing cement 1 40 and a metal repair patch several inches larger than the damaged area.
How to fix holes in galvanized gutters 1.
Insert the drop outlet in the hole and fasten the new downspout with sheet metal screws.
First use a stiff wire brush to remove any rust or corrosion from the hole and the surrounding area.
You can use the same process for repairing holes in both steel and aluminum gutters.
Set up a ladder on a flat even surface and carefully climb up so you can access the damaged section of gutter.
Apply plastic roofing cement over small holes.
If the holes are larger than nail holes use tin snips to cut a strip of flashing the same amterial as the gutter wide enough to fill the area.
Great that is until they start to rust away resulting in holes and cracks that let the rain through trickling down the façade of your home and thus negating the entire purpose of having gutters in the first place.
Bend the strip to fit and embed the flashing in the cement.
See below for a shopping list and tools subscribe to this old house.
Hold the metal flashing firmly in place until the cement has dried and then test for sturdiness.
If a gutter isn t draining properly it s either not sloping toward the downspout or it s sagging and needs to be raised you have to patch any hole right away so it doesn t grow larger.
If your gutters are fastened with spikes and some spikes are loose or rusted simply hammering the spike back in isn t.
Scoop out leaves and other debris in this gutter section using your hands or a plastic gutter scoop.
You can then apply a sized piece of metal flashing.
Once the hole is clean and dry spread roofing cement 1 around the edges of the hole and apply a patch of appropriately sized metal flashing.
Feather the roofing cement out on the surrounding area to flatten any steep edges.
It s important that the patch match the gutter material.
Make sure to seal the drop outlet to the gutter with seam sealer.
There should be no more than a inch drop in the direction of the downspout.
Holes you can use the same process for repairing holes in both steel and aluminum gutters.
After the patch is situated cover it completely with another coat of roofing cement.
They re readily available relatively cheap and easy to install.
Scrub the inside of the gutter around.
If clips or brackets hold your gutters check for broken clips and loose or missing screws.
Steel gutters are great.