We've been using Highett Metal for a few years now because our factory regularly needs aluminium bars delivered (at least a few times a month). In our experience, Highett stocks high quality products (we can only speak for their aluminium, but we're sure that their copper and brass will be the same), is dedicated to helping their clients to the best of their ability and ensures timely deliveries every single time. We have never had a bad experience, both with the team and the aluminium, and would recommend them to others.

Approximate cost: $varies