Maine storage company Cumberland Self Storage is one of the largest and longest established providers of mini storage space in Maine. We have been solving storage problems since 1981 with full service locations in both Portland and Brunswick. Who stores at Cumberland? We assist Students, Professional Offices, Businesses, Households, and Military Personnel.Cumberland Self Storage offers high quality mini storage at affordable rates. At two convenient storage locations in southern Maine, Cumberland Self Storage provides the citizens of Maine with secure modern storage facilities, packing and moving supplies, computerized accounts, sprinkler systems and professional mini storage managers. Whether in Brunswick or Portland, youll find professional and friendly staff at Cumberland Self Storage. Call us today!