She and husband Kevin now have the much anticipated wombat hospital they've been wanting for so long at their Cedar Creek Wombat Rescue complex.

"One we got started we didn't want the building work to stop," she admitted. "It was finally happening, so we said just keep going."

The final cost hasn't been fully totalled yet, but would be "upwards of $80,000" she estimates.

A chunk of the money came from Kinder Chocolate, and there has been support from the Australian Wildlife Society too, as well as numerous individual donations.

"What it means is we can save a lot more animals," she said.

The hospital was officially opened on the weekend in a small ceremony, with Suzanne Medway, President of the Australian Wildlife Society, doing the official duties.

While Roz admits she won't turn away an injured animal, the hospital gives her the chance to do what she loves best - fixing injured wombats.

"They don't get the attention they deserve," she said. "Fix koalas and they'll throw money at you, but not with wombats.

"I have cut back on raising young, orphaned wombats - there are lots of people who do that - because I prefer to work with the older mature wombats. The ones who have mange, or have been hit by a car or attacked by a dog.

"I get more of a sense of reward by helping them to get well and get back out in the wild. And it's a much quicker process than raising a young one."

The new hospital has intensive care units, rehab pens, air conditioning - "wombats hate heat" - and a place for her vet to stay, which is still a work in progress.

It's all a far cry from last season's bushfires when they evacuated all their animals, then fought tirelessly around the property's perimeter to help protect it.

READ MORE: Walking with wombats: Inside Cedar Creek Wombat Sanctuary