Safety concerns at an ambulance branch in Melbourne's west have prompted paramedics to abandon the post and work from elsewhere.
Ambulance Employees Australia Victoria general secretary Steve McGhie said 19 paramedics and one clinic transport officer had agreed not to return to the 35-year-old building in Sunshine until their concerns were addressed.
Mr McGhie said the paramedics had decided to work from nearby St Albans. This followed a meeting with WorkSafe on Wednesday over health and safety issues at the site.
About 80 paramedics from across Melbourne attended the meeting in a show of support.
Mr McGhie said an engineer's report 12 months ago found the building should be demolished. There were issues with asbestos and the foundations as well as the rest facilities for paramedics working long shifts.
There were concerns about security, with paramedics confronted by burglars on Boxing Day and cars broken into on several occasions, he said.
Mr McGhie said the issue had been raised with Ambulance Victoria, which had agreed major works were needed but required Victorian government funding.
He said paramedics would agree to return to the building if "fatigue management" and security issues were addressed.
Mr McGhie said any agreement with Ambulance Victoria would have to be passed by the members, which was not likely to happen until Thursday.
An Ambulance Victoria spokeswoman later said a meeting between WorkSafe, health and safety officials, the union and Ambulance Victoria saw everyone agree to further safety and security measures to be put in place in the coming weeks.
This included improved lighting, while higher fences had already been implemented at the site, and paramedics were offered rest accommodation or taxi vouchers.
The spokeswoman said the ban had been lifted and paramedics would continue to work out of the Sunshine branch.