Sea Glass Rentals Policy: You must 25 years old to rent a Summer Rental. In order to book 50% is required at booking. Once booking is confirmed you will be required to sign a contract and the house rules form. If you are interested in one of our Summer Rentals you may call us at 207-406-4953, Email: kim@seaglassrentals.com or visit us at 14 Maine Street, Suite 110, Brunswick, Maine 04011.