[snip]

As others have said, a garage is great. You might want to try insulating
the outside with bubble wrap or similar. The worms will get quite lethargic
in cold weather aparently and it's then possible to overfeed them.

This is all "web gossip" as my wormery is also new and this is the first
winter. Mine is going into the shed (no garage!) and I have bubble wrap to
insulate it. DON'T FORGET to leave the airholes clear so the wormery can
breathe. I'm going to try a polystyrene slab on top, with holes cut to
match the airholds in the wormery lid.

Liked the tip about newspaper from another poster though. My worms
currently have the commercial "duvet" but as they've become established,
they've started eating this very quickly, probably helped by it getting wet
since I have somewhere out of the sun (careful they don't roast in the
summer!) but not sheltered from the rain.

Paul DS.