Our repair and maintenance processes for brick chimneys comprise the following: Preparation and repair to fractures and jointing materials. Installation of monitoring equipment. Surface preparation and coating systems. Design, installation and maintenance of access ladders, walkways, gantries and ancillary steelwork. Installation and maintenance of aircraft warning lights. Repair and renewal of refractory and other specialist linings. Design, installation and maintenance of gas efflux velocity cones. Demolition and reconstruction. High-pressure water cleaning. Repair, refurbishment, upgrading, installation and testing of lightning protection systems to BS6651. Installation, maintenance, repair and testing of fall arrest systems.