Yes, there was definitely a Guest & Chrimes valve foundry, afaik that's the correct spelling. I think much of the factory was demolished, but some of the offices are still standing, maybe not for much longer though…
Sorry to bump an old thread, I think Dysons became popular with the urban explorers, as well as the "scrap metal pirates", so the police may have been paying its uninvited guests a visit.
Slightly off topic but related, do you know whether Aurora Holdings also owned all or part of the Scottish Brick Corporation at one point? I'm looking to find more information, and there's very little on the Aurora/ SBC link. Thanks…