For summer weekends in Greater Cleveland (May through August), we recommend booking at least 2 to 4 weeks in advance. Saturdays in June and July fill up fastest. For weekday events or off-season dates, a few days' notice is usually plenty. We also accept last-minute bounce house and water slide rentals whenever inventory allows, so call us at (440) 465-7110 or check availability on our website even if your Parma or Cleveland event is tomorrow.