The school was affected by flooding.
Bishopston Comprehensive is back open for pupils this morning.
The school was forced to close last week after 10 classrooms were affected by flooding following heavy rain.
The electricity supply had to be turned off to large parts of the building.
Work has since been carried out on the school roof and the classrooms cleaned up to enable the school to reopen.
We're told a small number of classrooms will remain closed for a short time with alternative rooms made available.