A decision is expected later over the future of Cwmcarn High School. Caerphilly County Borough council will hold a special meeting to consider whether the school can be kept open.
The school was temporarily closed in October 2012 after a report found high levels of asbestos there.
A recent survey recommended removing the asbestos and further work to make the school safe. This would cost around £1million.
The school and the governing body say they want to proceed with the work to keep the school open, but that the Councillors will consider a range of other options later today.