Yes, leave it till Feb/March depending on how cold your area and the winter turn out to be. Then start by cutting out all obvioulsy dead wood plus broken, damaged or twiggy growth and then assess what you have left.
Prune the remaining stems down to outward facing buds to maintain an open form that allows air to flow and reduces disease. Feed them generously with blood, fish and bone, or pelletd chicken manure as general fertilisers for good growth then add some rose or tomato fertiliser as these encourage flowers.