The roll-out has just passed the half-way mark with 550,000 customers having fibre laid past their homes and 100,000 customers now connected, Chorus's Ratcliffe said.
It takes about three months to train a technician, depending on their skill level, but also represents a $100,000 investment when the training, equipment, and van are taken into consideration, he said.
Spark New Zealand chief executive Simon Moutter said fibre was an easy sell at the moment but there needed to be more education for consumers on what will happen at their home with fibre installations.
"There's lots of work to do to make sure we get the customer experience in the place it needs to be."
Chorus said it's taken a number of steps to improve that experience as the demand for fibre becomes mainstream.
That's included increasing the number of installers, taking a bigger role in forecasting demand, and setting up a contact centre to confirm appointments following criticism over a high number of missed appointments.
A breakdown of annual sector investment shows $686 million went into fibre fixed access in 2014.
- BusinessDesk