With coronavirus cases continuing to rise in Victoria, police and the Defence Force have been stationed at border control checkpoints since Wednesday.

Mr Burke sends five B-double trucks from Bathurst to Victoria each day and another five make the return trip north and, so far, he says there have been no problems.

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"There's been no hiccups with it whatsoever," he said.

"They're just flagging the trucks straight through."

Mr Burke has applied for NSW border entry permits for each of his drivers, but because freight has been deemed an essential service, so far they haven't had to use them.

Cleaning vehicles and depots at Burke's Transport has ramped up since March and Mr Burke has praised his 80 staff for their compliance.

"People have really upped the ante with regards to personal hygiene ... I think the education program has really worked well," he said.

Orange-based company Whites Transport, meanwhile, has had a problem at the border.

Owner Kelvin White said on Wednesday one of his drivers was forced to take a 1.5 hour detour because the border crossing at Tooleybuc, north west of Swan Hill, was closed and no traffic was allowed through.

"Our truck was going from Orange to Adelaide and you cut through Victoria," he said.

"We had to turn around and go back through Mildura ... they should have had a sign up saying it was closed 60 kilometres back."

Mr White said his driver reported that police said they had turned around another 40 trucks from the same border crossing that day.

"It obviously could have been handled better," he said.

Ron Finemore Transport has its head office in Wodonga, near the Victoria-NSW border, but its Orange distribution centre is a hub for many of its 260 vehicles.

"We transport food and fuel, both of which are considered essential," managing director Mark Parry said.

"There's been very little disruption or delays at the border. At Wodonga, there's separate access for trucks and cars."