Testing and remedial works to remove and prevent Legionella, chemical cleaning of water tanks, calorifiers and pipework, identification and removal of “dead-legs”, pipework replacement or layout changes, testing / resetting of TMV’s (Temperature Modulating Valves), replacement of isolation / control valves, conversion from tank fed CWDS ( Cold Water Down Service ) to MCM supply (Mains Cold Water) sanitary system blockages and sanitary / brassware replacement and above ground drainage repair / replacement.