Do I need to be. When is Aspers Casino open? Monday - Sunday: 10am – 4am. Whether you're a gaming beginner or a professional, you can be sure of a warm and friendly welcome 24/7 at Aspers. Come and discover: Our elegant. There is no door fee. . Simply the best casino and leisure destination in Northampton. Is there a door fee? Entry to Aspers Casino is free of charge.