Welcome Appliance Service Specialists, Inc. (A.S.S.I.), Contractor State Lic# 799161, is located in Costa Mesa, on Newport Blvd. Our service technicians are trained to repair We have been repairing major appliances such as Refrigerators, Washers, Dryers, Dishwashers, Trash compactors, Ovens, Microwaves, Ranges, Stoves, Cook Tops and H.V.A.C.