The Parliamentary Secretary for the Illawarra is calling for drivers saved from floodwaters by emergency services to pay for the cost of the rescue.

Kiama MP Gareth Ward has put the proposal in writing to the New South Wales Premier Mike Baird.

Mr Ward said taxpayers should not have to foot the bill for people who deliberately and recklessly entered flood waters.

"I'm saying that the cost recovery should go back to the RFS and SES involved because people who are volunteering their time shouldn't have to put their lives at risk for people who continue to ignore the warnings," he said.

But Labor leader Luke Foley accused Mr Ward of being on the lookout to make a fast buck for the government.

"Can't we just thank the emergency services for what they've done for our community in recent days.

"We shouldn't be looking to pawn them out as a moneymaking enterprise," he said.

He said Mr Ward should "calm down".

The SES performed around 300 flood rescues across the state across over the weekend with approximately half of those involving cars stuck in floodwaters.

Ashley Sullivan from the Illawarra South Coast SES said they worked closely with police to fine motorists found to be driving down closed roads.

He also pointed out insurance companies were unlikely to pay claims for damages resulting from people deliberately driving into floodwaters.

"When you drive around a road closed sign and knowingly drive into floodwaters your insurance will not cover the replacement of your car," he said.

"You are taking not only a huge risk on your life, but a huge risk financially."