WLS is a NSI Gold approved company that offers a comprehensive and reliable service and maintenance call out service for fire and security systems in London. Whether you need to service and repair your fire alarms, intruder alarms, access control, CCTV, gates, barriers, bollards, or automated doors, WLS has you covered. They guarantee a first time fix or solution for every call out and have competitive rates. Call them today to book a service or repair visit and ensure the safety of your premises.