Party City can fill latex and Mylar balloons. You can buy balloons and have them filled at your nearest Party City, purchase balloons on Party City’s website and bring them to your nearest store to be filled, or bring in balloons you purchased elsewhere to be filled.Click to see full answer. Then, will party city fill up my balloons?We fill foil balloons for free if you buy them from us. But if you purchase your balloons from another store, you can still bring them to your local Party City to have them filled. Helium prices can vary depending on your location, so it’s a good idea to call ahead.One may also ask, can you get balloons filled at Dollar Tree? Balloons arrive uninflated; however, foil balloons purchased online can be inflated at your local Dollar Tree store at no additional cost. Due to the the nature of helium supplies, it is important to please schedule with the store manager so as to make sure the store has the helium necessary to fill… Just so, can I get balloons filled with helium at Party City? Yes! We have several options for filling balloons: You can purchase select Party City balloons in store and have them inflated before you leave.Where can I get balloons inflated?Buy a bag of balloons and fill them easily at party supply stores or the floral department of your local grocery store. Alternately, you can purchase and fill balloons at a Dollar Tree or 99 Cents Only Store near you.