Hammer House 24/7 Gym is located in Sandringham and is bayside’s number one heavy lifting and performance gym. Sandringham’s Hammer House Gym provides bayside Melbourne with one of the best environments to get stronger. Hammer House 24/7 Gym focuses on weightlifting and body building for both men and women. Our members find everything they need to gain strength, tone up and trim down. You’ll see members pushing themselves and each other beyond their limits to achieve their goals.