Stone on the spire has eroded over 100 years, raising safety fears
Construction of scaffolding around the main spire and tower of Truro Cathedral has been completed as part of a £2m programme of repair works.
The scaffolding has taken five months to erect and will allow stone masons access to every part of badly eroded stonework on the spire.
Work needs to be carried out because the soft Bath stone has been seriously eroded by winds, the cathedral said.
The work on the 245ft (74m) Victoria tower is part of a year-long project.
The Victoria tower and spire was named after Queen Victoria and was completed in 1905. But the stone has been eroding over the past 100 years, raising fears about its safety.