What can i do, repair or replace A/C evaporator? on 2006 Scion xA

A/C stopped cooling, had gas put in system in Oct. Cooled until this week. Repairman claims evaporator needs to be replaced.

Asked by for the 2006 Scion xA
2 answers
have a mechanic replace the evaporator it is a fairly big job
its about a 1300.00 job but seek help from an a/c mech