The cost of liposuction in the UK will depend on the type of liposuction performed, whether a local or general anaesthetic is used and the numbers of areas treated.Liposuction surgery is generally performed under a general anaesthetic which requires the presence of a qualified anaesthesiologist. Patient Profile: Liposuction fees tend to be higher for heavier patients, since the area to work on is larger. 2  Those who have gained then lost a significant amount of weight will generally need to pay more as this makes the procedure more difficult.