Central Demolition has managed to remove asbestos from a Whanganui secondary school before the school term begins, owner Ian Butcher says.
Asbestos removal is a lengthy process, and it can only be done during school holidays.
The Feilding-based company is demolishing eight classrooms of the school's A Block. The asbestos was unexpected, and caused a delay.
To remove asbestos-lagged pipes between the floors of the block, each classroom had to be separately wrapped in polythene, with a negative air environment created inside.
After the pipes were removed the air was checked again. Monitoring came back negative, and the company has clearance to continue the demolition.