Opponents of a plan to run a drug rehabilitation centre in a disused primary school in Tasmania are demanding signs of support be taken down.

The faith-based organisation Teen Challenge wants to turn the old Meander Primary School, which closed in 2014, into a long-term, residential rehab centre for women and children called Home of Hope.

A group of residents recently formed the Meander Area Residents and Ratepayers Association to lobby against the proposal, arguing the community had not been properly consulted.

The association's president Bodhi McSweeney has accused the project's supporters of using "bullying tactics" by erecting signs of support on their properties in town.

About 20 signs expressing support for Home of Hope have appeared in the area and Ms McSweeney wants them taken down.

"Most of the people in our group find it quite offensive," she said.

"We don't think they're appropriate, and we think it's a continuing bully tactic from the Teen Challenge organisation.

"All along the way there's been political tactics that we've not been happy with. and this is just another.

"It's in our face as we drive through."

About 20 signs of support have appeared in the Meander area. ( Supplied )

Ms McSweeney said the group was taking their case to the council.

Meander Valley Mayor Craig Perkins defended council's decision to support the proposal.

"I'm still comfortable that with all the information available to me and to other councillors, we've considered all that information, and I'm comfortable that Teen Challenge can fulfil what they said they could," he said.

But Mr Perkins admitted the divide in the community was difficult to manage.

"It does concern me, the angst and the dialogue amongst members of the Meander community," he said.

"In terms of the broader dialogue, if you like, that's going on between members of the Meander community, it is challenging.

"From what we gather, it's deeply embedded differences in the community."

We had nothing to do with signs: Teen Challenge

Teen Challenge executive director Tanya Cavanagh distanced the organisation from the signs of support.

"We had a phone call and a message from a community member to tell us that they'd done that," she said.

"They just said, 'Look, we've been sitting back and we just felt that it's time we showed our support'.

"We had no understanding before that that was what they were doing so I don't see it as a bullying tactic at all - it's certainly nothing to do with us."

Ms Cavanagh said it was an overwhelming gesture.

"It actually made me cry," she said.

"It showed the community that we know are supporting us and they went to that effort."

Rural Health Tasmania chief executive Rob Waterman said the proposed facility was badly needed in Tasmania.

"Contrary to what some people may think, they're actually really beneficial to the community," he said.

"They take people from the community struggling with drug and alcohol problems and return them to the community as a productive member.

"The benefits to the community are quite substantial."