Clearing of tree roots from pipes and drains (plumbing services); Maintenance of plumbing; Plumbing; Renovation of plumbing; Disconnecting unused service lines (eg gas, mains water, electricity); Maintenance and repair of gas installations and equipment; Repair of gas supply systems; Installation of roofing; Maintaining and repair of roof guttering; Cleaning of drains; Drainage services; Land drainage; Maintaining and repair of drain pipes; Unblocking of drains