Castle Security is your locksmith company in Bristol, Avon. We are local locksmiths and security experts in fitting locks, key cutting and lock opening, providing professional locksmith services to domestic and commercial customers. We specialize in mobile and emergency call outs and contract locksmith services for our larger clients. Supplying a complete security service, customers also benefit from our expertise in access control of doors and windows, domestic and small business burglar and fire alarm installation, servicing and repair.