Public servants have walked off the job in protest of pay conditions in WA.

Members of the Community and Public Sector Union/Civil Service Association (CPSU/CSA) in the WA Public Service took industrial action in support of a pay claim.

The West Australian Government offered an increase of 2.5 per cent per year for the next three years in an agreement covering around 40,000 staff.

CPSU/CSA branch secretary, Toni Walkington says members have rejected the offer because they believe they are still not valued as much as other in the public service.

“What we want to see is the Government come to the table, bargain in good faith and not just stand behind a policy position in which they will not offer any compromise,” Ms Walkington said.

“They have always said it was a 2.5 per cent offer... take it or leave it...on the back of other public servants securing agreements of 4 per cent.”

The union says the offer is not enough to recruit and retain valuable staff.

Action is expected to continue, with union representatives refusing to be drawn on how long the campaign will last.

Ms Wilkington says the Government has not adjusted its position since negotiations started last year.

“We hope the Government would reconsider its position by putting an improved offer on the table and our members are committed to doing whatever it takes to get them there,” she said.

“It's important that staff are well rewarded for their work and they have an appropriate pay offer that retains them and prevents them from being lost to the private sector.”