North Delta's Heath Traditional School was closed earlier this week after a small fire broke out early Monday morning.
Students were not in class on Monday or Tuesday, but all grades except kindergarten were expected to return to school today.
Smoke and flames were first reported by nearby residents at around 2:30 a.m. Monday.
The cause of the fire at the 72nd Avenue school has not yet been determined.
Delta school district spokesperson Deneka Michaud said it was originally hoped to have most of the students back in class on Tuesday, but the restoration contractor needed at least 36 hours to adequately clear smoke from the building.
The cause of the fire is still under investigation, Michaud said, and it remains unclear if it is suspicious.
"The fire happened in the early morning around 2:30 a.m. and was contained to one area at the back of the school, with a kindergarten classroom receiving significant damage," she said in a statement.
"We are incredibly thankful to Delta Fire (Department) who responded to the fire immediately and did an excellent job," Michaud said.
