Where do I go to get my cracked iPhone 4S fixed and how much does it cost? - 1

Ok so recently my friend accidently dropped my iPhone 4S and the back cracked its pretty bad! It still works perfectly and luckily the front isn't cracked just the back so yeh. We're do I get my phone fixed? And how much is the cost of repairing it?
Soz for the bad spelling I'm typing this up on my iPad so ya:)

Apple, and around $80. Call them first to find out exact price.

Lots of computer shops these days also fix iPhones so you can try that. If you can't find one you can always sell it on like http://Gazelle.com if your in the US or http://ByteBuyers.com if your in Canada.