Overwintering shrubs in pots

I have a fuchsia collection in raised beds in my front garden. This area will become a builders site in a few months when we have an extension built. My plan is to lift the fuchsias ( about 50 of them, both H3 and H2) into pots which my kind neighbours have agreed to store. Will bubble-wrapping the well mulched pots and fleecing the branches cut to about 30-40cm be enough protection, or what else would you suggest?