For the best protection, the lock and key method is used for almost any living essential. Keys allow access to only the person who carries them for safety and security purposes. If a key becomes lost or broken, it can cause much inconvenience. This winter, people who need to duplicate or replace their key in Wilmington, PA, can opt for McCausland Lock Service, Inc.'s key cutting services. The company provides quality locksmith services for vehicles, cars, homes and commercial buildings.