$1 billion for NSW ambulance service

Almost $1 billion will be pumped into the NSW ambulance service to employ hundreds of new paramedics and call centre staff across the state.

The state government is expected to announce on Friday that 750 new paramedics and call centre staff will be added to the service, with the first 200 due to be deployed within the next 12 months.

The boost, which is being revealed ahead of Tuesday's state budget, will also mean more paramedics for Sydney's west and south-west regions.

"The more paramedics we have, the safer we are and the safer they are," Treasurer Dominic Perrottet told Fairfax Media.

"This investment tells our paramedics very loudly and clearly that we value their service."