Unfortunately cedar siding seems to get a lot of damage from woodpeckers particularly if the house is adjacent to a wooded area.
Best way to fill woodpecker holes in cedar siding.
Step 2 prepare the backing.
Filling woodpecker holes in wood siding.
Large holes like you are describing sound like roosting or nesting holes.
When you fill woodpecker holes or blemishes in siding or other wood surfaces the type of wood plays a factor.
Fill the siding holes with wood filler.
Scrape away any excess with the putty knife when you re done and allow it to air dry.
Scoop out a golf ball size glob of both substances and.
Step 4 mix the repair putty.
Dig out all the rot from inside the crack or hole with an awl or a flat head screwdriver.
Step 1 save sawdust.
Mix up a batch of lightweight structural adhesive epoxy putty on a scrap board.
Use a putty knife to apply the putty.
Smear a generous layer of the epoxy putty over the holes.
Use a putty knife to force the filler inside the hole making sure to fill in the hole and to completely cover the opening.
Step 5.
These holes are often placed in corners and can go into the insulation.
It s important to get all the rot or it will keep growing underneath the filler.