MDJ Jumping Castles are a family owned and run business specialising in Jumping Castle Hire, located in Seven Hills. We cater to the whole Sydney metropolitan area with free delivery within 20km of Blacktown. The extensive range of jumping castles ranging from 4 m in length to over 12 m with our fantastic giant soccer field. Also, we also have for hire slushy machines, fairy floss machines, popcorn machines and lolly buffets to suit your style.