A contract has been signed to start work on the faulty building issues at Middlemore Hospital.
Repair work will start on the Scott Building after four of the south Auckland hospital's buildings were discovered to be riddled with mould.
Acting Chief Executive Gloria Johnson says it is widely known that Counties Manukau Health has issues, including weather tightness, with a number of its buildings.
"The Scott building, which houses several wards including cardiac, coronary care and oral health, is an important facility on the Middlemore Hospital site," she says.
Dr Johnson says the remediation work will be carried out while Middlemore Hospital remains operational.