I think you may be able to fix yourself.
First find out where is leaking, then shut off the cold water. losing the connection, put some teflon tape around the thread, reconnect the connection, turn onthe cold water, that should be it.
First find out where is leaking, then shut off the cold water. losing the connection, put some teflon tape around the thread, reconnect the connection, turn onthe cold water, that should be it.