Less than two weeks from the March 8 state election, Premier Roger Cook said voters had a choice between a Labor government, which has a plan, or the Liberals.
"(The Liberals) are chaotic, dysfunctional, don't have a plan and are a risk to the economy," he told reporters while visiting the Magellan Power battery manufacturing business on Monday.
He said a re-elected Labor government would continue to keep the economy strong, provide cost of living relief, increase housing supply and develop manufacturing in the state.
WA Liberal leader Libby Mettam said her party was asking voters "is your life better off after eight years of the Cook Labor government".
"We believe only the WA Liberals have the solutions for the priorities that really matter, whether that's cost of living, whether that's a broken health system, or whether that's issues that have been ignored for years," she told reporters at a press conference beside Leach Highway in Perth's south.
The Liberals have promised $112.5 million to duplicate the Shelley Bridge on the busy route to reduce congestion but the party is unlikely to win enough seats to form a government.
Experts are tipping a comfortable win for Labor, which holds 53 seats in the lower house with the Liberals and Nationals holding three each after Labor's unprecedented landslide victory in 2021.
Its massive majority is likely to shrink, however, as the conservatives claim back seats lost in the last two elections and it could lose power in the upper house.
Mr Cook was upbeat while visiting the factory in Perth's south, pledging $50 million in grants and loans to establish a local residential battery manufacturing industry.
"We'll turn WA into a renewable energy powerhouse," he said.
"One of the key ways we'll do that is by unleashing the huge amount of energy that we produce each and every day through our household batteries."