As a rule, I'm not personally that big on cosmetic surgery, but I do feel that sometimes people have a solid reason for making the choices that they do, especially with something like breast reduction surgery. Public scrutiny and health issues can all play a role in a woman making this very difficult decision. Oftentimes, the populace doesn't think about the fact that there are health issues for overly endowed women, but there are. Back pain and shoulder pain are the two most well known, along with the mental aspects of being ridiculed and gawked at much of the time.
MYA Make Yourself Amazing Cosmetic Surgery in the United Kingdom is one facility that offers this procedure as well as others. There's plenty of information on their website to help women decide if this is something for them. You can read about their surgeons, past experiences, and read patient stories. If this is an issue facing you, you want to make sure you have the best.