What can I do to get rid of the insects, chipmunks, spiders, and eggs outside and inside of my rabbits hutch?

I desperately need help, since I had my other bunny (who sadly ped about 2 years ago) his outdoor hutch has been swarming with nasty little insects and even chipmunks. What can I do to prevent this? It's a beautiful hutch but it's disgusting and I should warn everyone that I'm absolutely terrified of insects no matter what kind. I'm asking because I have a new bunny who will need to go out when spring comes around the corner.