Locksmith Emergency Service in Prague—arrival within 35 minutes. 24/7 service for locked doors; we’ll agree on the price in advance. We open apartments, cars, and safes. Repairs and installation of lock cylinders based on your house key. Door service. Certified by the Ministry of Education and the Ministry of the Interior. Replacement and installation of lock cylinders, locks, and hardware. Repairs to doors and locks following a break-in.