Trailing Fuschia

I take them out and put them in pots before the first frosts, then I trim back (good time to take cuttings) , I then put them in a frost free place and water sparingly until spring, don't worry if all the leaves drop off they will reappear in spring time . I then start to water in spring once new growth appears.
I also take cuttings as sometimes plants don't make it through but cuttings tend too.

I have same method as madaboutgar but I then stop my watering till Feb then restart .

Good luck in overwintering.