Karl's Appliance operates seven appliance stores in New Jersey. We offer next day deliver and installation services and will always remove your old appliances at no charge. Come visit one of our conveniently located locations for guaranteed low prices and exceptional service. Locations: Fairfield, NJ. Orange, NJ (3.5% NJ Sales Tax!). Perth Amboy, NJ (3.5% NJ Sales Tax!). Madison, NJ. Montclair, NJ, Sparta, NJ. Belleville, NJ.