Fusion hair extensions should always be applied and removed by a professional technician, preferable a certified fusion extension specialist, the process is too complex to be done at home and could result in the hair and scalp being damaged. The price of the fusion hair extensions will vary depending upon the hair you purchase and the technician that installs them. It is always worthwhile to research multiple salons and to check the reviews. In larger towns and cities there will likely be more salons and technicians who specialise in fusion hair extensions and can probably offer better rates. However, just because somewhere is cheap, it does not necessarily make it the right option - research is key!