Hello, i live near you and would suggest the following...
Cheshire Dogs Home Warrington
Warrington Animal Welfare
Leigh Cat and Dogs Home
Rspca Warrington
Phoenix Dog Rescue Warrington
These are local rescues for animal and get puppies in frequently, if you are buying a pup in north west look to pay 200 plus, with no guarantees..
If you are getting them for a rescue and they normally come with a voucher for neutering or reduced, and already vaccinated and wormed and fleaed.. good luck i have 6 collies and one is a rare blue puppy..love collies.
Think very carefully before getting a collie they are very very active and when you come in shattered from a walk they would go out again, can you give a collie a lot of exercise and stimulation..
Think about agility and dog shows and training a collie, they are very intelligent and sometimes too much as my puppy shows me lol..
We just lost our old collie age 14 years on monday, so think of your life style and ask is it a farm collie or a collie with farm way back in its history, difference is a farm collie will be a lot more active.
good luck hope your a new border collie owner x