List of Firehouse Subs Stores in Merrillville, IN Outlet Note Regular Brands Firehouse Subs Indiana Merrillville Rating 4.9 based on 81 votes Official Website http://www.firehousesubs.com/ Products Salads Catering Subs Sub Sandwiches NameAddressPhone Name/Address/Phone Firehouse Subs outlet - Merrillville 2627 E 80th Ave (219) 942-5555 People Also Viewed