Dingo sanctuary president Luci Ellem said the rebuilding process had been "extremely slow".

The team will need approval from property owners National Trust and subsequently Wollondilly Shire Council to proceed with certain recovery works, including rebuilding the shed.

"We're waiting for approval to remove the dead and fallen trees," Ms Ellem said.

"We're also waiting for the condition of our wire fences that are burnt and how they're going to be repaired.

"We're stocking up on everything we lost inside the shed, putting basic things together."

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Ms Ellem said the dingo sanctuary's re-opening date was uncertain.

"We assume we may open a couple of months," she said.

"We're not open until the area is safe with the trees.

"Every day we're not open, we're not making money."

Despite a lofty task ahead for Ms Ellem and the volunteers, she said "the animals are fantastic".

"They're happy and bouncing," she said.

"We won't be breeding them this year. We have to keep an eye on the girls to see who comes into season."

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While there is some work to go, many hands are sure to make light work.

"We've got rid of our shed it's ready to build. It's just doing the red tape," Ms Ellem said.

"We wouldn't be where we are now if it wasn't for my very valuable volunteers who are so dedicated, bright and cheery.

"We have about 20 volunteers but we still need more. Our volunteers have special days; some give one day a week, some give three days, some give one day a month."

Ms Ellem also thanked Australian Wildlife Foundation president Brad Wilson for his support and assistance.

The sanctuary will host an official opening when the public can visit again.

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Visit https://dingosanctuarybargo.com.au or call Luci Ellem on 0419 488 680 to express your interest in volunteering.

You can also visit the website to make a donation to the dingo sanctuary.