Advisory services relating to pipe laying; Clearing of tree roots from pipes and drains (plumbing services); Diagnostic maintenance services; Disconnecting unused service lines (eg gas, mains water, electricity); Drainage services; Installation of kitchen appliances; Installation of land irrigation devices; Installation of land irrigation systems; Installation of pipelines; Installation of roofing; Installation of sanitary apparatus; Insulation of pipes; Insulation of roofing; Land drainage; Land excavating; Laying of pipelines; Maintaining and repair of drain pipes; Maintaining and repair of roof guttering; Maintenance and repair of gas installations and equipment; Maintenance and repair of pipelines; Maintenance and repair of utilities in buildings; Maintenance of plumbing; Pipe installation services; Pipe laying services; Pipe-fitting; Plant installation; Plumbing; Plumbing and glazing services; Pump repair; Renovation of plumbing; Repair services; Roof installation services; Roof repair; Roofing services; Sewer pipe cleaning; Sewer pipe maintenance; Sewer pipe renovation; Sewer pipe servicing; Pipeline construction; Pipeline construction and maintenance; Civil construction services; Excavating