Required a burglar alarm system that was efficient, easy to operate whilst not requiring wiring. We had chosen a Visonic Alarm System and David Cole gave excellent advice regarding the best type of sensors to use & their location. He came at the agreed time & fitted all the units without causing any mess. The operation of the alarm system was fully explained but he is only a phone call away if we have had any issues. Annual maintenance has been available to give us peace of mind. All in all a 1st rate job