Or pot into big pots.....as much root ball as possible and well wartered whatever you do
as you say reducing the top may lose this years flowers but with tlc should be fine.....better than leaving them behind

Thank you Pam, you were quick.
yes she will loose the first flowers but as both are repeat roses she might have some more later in the year I think. Yes better risk it than losing them by leaving behind.

I think you have the right idea, hope the move goes smoothly....its a stressful time

Roses don't like being moved when out of dormancy especially at this time of year. If it's well established you are probably going to need to cut part of the root system which will shock the plant. The result is that when you transfer it to its new area it will just sit there for weeks and sulk or may even wilt despite giving it plenty of water. I wouldn't expect it to do anything this year if you move it now.

At least they might survive Bendipa, the dr Jamain in particular has gone in cuttings from france, via england and now in holland and so also has sentimental value, as I had to leave all my roses behind I am hoping to take yet another cutting from her docteur sometime and plant it in my garden here in yorkshire.

Good luck Resi .....hope they all do well

My concern would be getting the whole rootball out without damage. I know New Dawn well (but have sentimental attachment to the parent Dr van Fleet). Dr Jamain is a very old variety (150 years old!) suggesting that it's tough! I think I would cut them back to reduce water loss while they're out of the ground. Then starting at the base of the trunk, carefully work outwards to find the edge of the rootball and dig out about a foot beyond what seems to be the edge. If it's only out of the ground for a short time you could wrap the rootball in damp sacking (if you can find such a thing) or straw and then polythene sheeting (the big blue Ikea bags are great as they have handles).
When re-planting give the roots a head start by using mycorrhizal rooting powder and lots of good organic material. Give a good mulch and keep an eye on the watering over the summer.

I suspect that these two look really good together.

Thats a good idea Urbanite....especially the micorrhizal powder, I didn't think of that or the mulch ?

Thank you urbanite, some good advice there.