A cast iron waste pipe with a hairline crack in a U-bend is repaired within the confines of a cramped roof space above a hospital corridor by a maintenance worker on top of a ladder

A cast iron soil pipe leaking through a two-metre horizontal crack is sealed in a confined roof space, preventing wastewater escaping into the hospital ward below

A 1.05-metre long crack in a cast iron downpipe leaking rainwater into a wall cavity at a hospital is repaired in under 30 minutes with no disruption to patients and staff