hi bro...can quote me how much for servicing aircond?...normally how long it takes to do the services?

my car is persona SE 1.6, 2009 model...never service aircond before , just top up gas aircond and clean aircond filter......aircond still cold though but take times when in hot day...

my budget is tight..if possible can u breakdown the quotation for service, so i can get ready with the budget...thanks a lot bro...