Squirrel damage

When the garage was originally built, a batten was not fixed to the outside at the back and squirrels have torn through the lining to get in - they can smell the bird food that's kept inside. The outside is now fixed and I'm repairing the inside with new lining this afternoon. A challenging task, given that (a) I don't like heights and climbing ladders and (b) my DIY skills are extremely limited!