All in One Sub Zero Appliance Repair Service. Acco Canada Refrigeration is a full-service repair company that specializes in Sub-Zero appliances. Our team of highly trained and experienced technicians has the expertise to diagnose and repair any issue with your appliances. While other companies may specialize in one or two types of appliances, we have the expertise and experience to service your entire kitchen. From refrigerators and freezers to ice makers, wine fridges, ranges, range hoods, speed ovens, microwaves, and more, we can handle it all. We use only the highest quality parts and equipment to ensure that your appliances are running smoothly and efficiently.