Labor hits winnable seats as Libs sandbag heartland

Premier Dominic Perrottet and Labor opponent Chris Minns are campaigning feverishly in the final hours before election day to win over undecided NSW voters.

Mr Minns made a pre-dawn visit to the Sydney Markets ahead of meeting with manufacturing workers to spruik Labor's plan to rebuild domestic manufacturing. 

Heading full steam into Saturday's election, he jumped into the driver's seat of a Tangara at a rail manufacturing site in Auburn.

"We just want to see the next generation of trains built here in NSW," the Labor leader said.

There were tense scenes as the premier arrived at a Sydney North Shore pre-polling booth on Friday with wife Helen Perrottet and baby Celeste, when a volunteer for the fringe Informed Medical Options Party launched an angry spray over COVID-19 vaccines.

"What are we gonna do about the vaccine mandates," the man shouted at the premier.

"Why are you not doing anything about it? Direct question!"

The premier's first stop was at another pre-polling booth in the marginal lower north shore Sydney seat of Willoughby, where he greeted voters with local MP Tim James. 

The seat, previously held by former premier Gladys Berejiklian, was once considered blue ribbon territory for the Liberals, and faces a strong challenge from Independent candidate Larissa Penn.

Asked if the former premier's popularity would impact the local vote, the premier said Mr James had taken after his predecessor.

"Glad (Gladys) has been a great servant to the people of Willoughby, and Tim has followed very well in Glad's footsteps," Mr Perrottet said.

Pollsters have predicted Labor will form minority government, while the premier's personal approval is also on the slide.

Mr Perrottet said there was a lot at stake and he would fight the way to the end. 

Both leaders are driving home their visions for the state and seeking to position themselves as the best economic manager as cost of living pressures bite.

Consulting firm PwC revealed the issue as the primary concern for NSW voters from the city to the bush as they head to ballot boxes.

Of 1000 NSW residents surveyed in the company's Citizen Pulse Check, more than half felt housing affordability over the next five to 10 years to be most important.

Concern over cost pressures was consistent across all age groups and demographics, from the regions to the inner city, PWC NSW Government Leader Nathan Schlesinger said.

Treasurer Matt Kean said the strength of the NSW economy didn't happen by accident. 

"Look at the infrastructure we've built, the $178 billion worth of infrastructure, new roads, motorways, railways, schools, hospitals, rolled out right across NSW because of our strong economic management," he told ABC TV. 

"That's all at risk if Labor gets into office because they'll take our state backwards."

NSW Labor announced that if victorious, the first piece of legislation passed would quarantine Sydney Water and Hunter Water from privatisation.

It comes after confidential documents revealed the Berejiklian government sought advice on selling Sydney Water in 2021 as it looked to fund infrastructure projects in Sydney.

"The fate of Sydney Water is on the ballot on Saturday. Which is why protecting Sydney Water will be our first legislative act after the campaign," Mr Minns said on Thursday.

Mr Perrottet has repeatedly ruled out any plan to sell off Sydney Water.