Our trash contractor will collect such items as refrigerators, freezers, air conditioners, dehumidifiers and water coolers only if the item has a sticker certifying that the refrigerant has been removed. Items that do not have the sticker will not be picked up because it is unlawful for the contractor to dispose of anything containing refrigerant. For a list of companies that remove refrigerant, call the public works department at (412) 343-3403. To avoid paying refrigerant removal costs, it is suggested that residents have the company delivering the new appliance dispose of the old appliance. Appliance Warehouse collects items with Freon. Call (888) GO FREON / (888) 463-7366.