Martin Environmental Services Ltd, MESL provides mechanical, electrical and specialist services to the built environment. MESL design, install, commission and maintain gas/oil heating systems, air-conditioning and ventilation systems, power and lighting systems, HVAC system control panels and systems. Specialist service areas include ATEX electrical systems, Local Exhaust Ventilation system installation COSHH assessments, laboratory fume cupboard testing, SeaChange control systems. Operating areas include Kent, Surrey, Sussex, London and Essex. MESL has developed from a single service provider