I'm not so sure that lack of sun is causing the lack of flowers.
Not sure if moving them from an east to west orientation would be better either, i would have thought their position okay.

Not being a rose expert i wouldn't like to advise on the appropriate time for pruning them because someone will have to figure out whether they're ramblers or climbers - both have different pruning needs.

I wonder if they just need feeding, to encourage more blooms - or whether the right pruning would do it .... i still wouldn't be too hasty to shift them.

In answer to the original question though ... i would think that moving would be done in the dormant period which would be winter.

Oh, right I will not rush to move them quite yet then - pending a bit more advice. I have to admit to not having fed them at all so that could well be it. Thanks.

It's a pity you don't know what they are - as Louise says, the variety of rose you have is critical for pruning procedure - ramblers get pruned in September, climbers and bushes in late winter/early spring. Plus some climbers or ramblers don't bloom in their first year or so, again, depending on the variety, some do, some don't.

Is there any way of me being able to tell if it is a climber or rambler by looking at the plant? I am learning now not to throw the labels away when I plant my plants!

A climbing rose will repeat-flower almost all summer, while a rambling rose will flower only once, usually in June.

If that is any help.

I think it is a climber then. It has had the odd flower all through the summer. I might try leaving it where it is for another year and make sure I feed it next year and see what happens. Thanks all.