It's back to school for Caldwell High School Students.
Wednesday morning, the school will re-open.
Students have been out since Friday's fire.
The Superintendent says classes will be moved from the damaged area, and clean-up will continue after school, at night, and on the weekends.
Police still think the fire was set on purpose, the arson investigation continues.
There was an unexpected spring cleaning project at Caldwell High Monday.
Friday evening around 7, a fire broke out in the high school. Now a restoration company is on campus cleaning up and repairing the damage.
"The total process may take a couple of weeks because they plan on working late, even nights and weekends to completely clean the whole school," said Randall Berryhill, Superintendent, Caldwell ISD.
The chemistry lab was the only room in the school that was destroyed, but school officials cancelled classes Monday because smoke damage throughout the building.
"The primary decision to cancel was the smoke, just the odor of smoke when you enter the building," said Berryhill.
Authorities aren't releasing many details about the fire, but they do believe the it was intentionally set.
"It's being investigated as an arson. It was set, so it's under investigation and really that's all I can say about it," said Berryhill.
The State Fire Marshal's Office is now involved, but getting school back in session is the biggest priority for the district.
"That's the goal, to get it in a condition where students can come back into the school in a safe building and resume classes," said Berryhill.
That won't be possible until Wednesday at the earliest. The district is expecting the school to be ready by then, minus the chemistry lab.