Just thought I'd post a link to Elysian Fields pet crematorium. These are the ones we sent Mickey too and their care and compassion was second to none. Mickey's ashes came back in a hat box to our vets with a spray of flowers and a message of condolence. Even the payment was done through the vets.
I'm posting the link 'cause sometimes its so sudden when they go that you end up having to spend ages trying to find somewhere at the most difficult of times.
http://www.elysianfields.co.uk/index.shtml They have a crematorium in Ayshire and Yorkshire.