Schools damaged by the blast at Sunrise Propane are expected to be ready to welcome students back when school begins next week.
Clean-up crews have been working around the clock to get four schools, both Catholic and public, ready for classes, and staff say the transformation has been impressive.
Elizabeth Bell, the principal at Ancaster Road Public School, said it was a very different scene three weeks ago.
"I tried to come down this stairwell and it was so full of broken glass it was too dangerous to even attempt to walk down the stairs," Goldberg told CTV News.
Broken glass is gone and windows have been repaired, according to Bell. But more importantly, test results show no asbestos contamination in any of the schools.
Madonna Catholic Secondary School and St. Norbert Catholic School are also expected to be ready to welcome students on time.
Damage at Downsview Secondary School was much more severe, but if repairs go according to plan, students will pick up schedules on Tuesday and begin classes on Wednesday, Sept. 3.
James Pasternak, a Toronto school board trustee, said, "If the school proves not to be ready or safe, kids and staff will not be in there."
However, no alternate plans have been made to accommodate students at other schools if repairs are not yet complete, according to Pasternak.
Information sessions are being held at local schools for parents who are concerned about air quality.
