Due to heating and cooling problems, students were dismissed early a total of 40 days last school year.
Wake says it's already installed temporary chillers to keep the AC going at schools known to have problems.
This equipment was placed at Cedar Fork Elementary, Wendell Middle, Leesville Complex, and Bugg Elementary.
ABC11 has learned that three additional units are on standby should something happen on the first day.
There were learning disruptions in the first week of school last year at a couple Sanderson High and Wakefield Middle. Students were forced to go home early because the AC stopped working, and it got too hot in the classrooms.
In the winter, there were more early dismissals after heating issues.
WCPSS Chief of Facilities and Operations Mark Strickland says a series of things have been implemented this summer, so there won't be a repeat situation of early dismissals.
"We're doing things differently this year than we have in the past," said Strickland. "We obviously feel like we're in better shape than we've ever been."
Wake says a technician has been hired to help keep more than 400 chillers running districtwide, and there's an effort to bring more people on board.
"We were so far behind in terms of hiring qualified staff, we've got a long way to go," said Strickland.
There are now fully contracted vendors that can work on various types of units when issues pop up, and all summer long, preventative maintenance has been done.
"Obviously, it's a lot easier to prevent something from happening than it is to fix it after it breaks," said Strickland.
Wake is still facing the larger challenge of upgrading all the aging HVAC systems. The work is estimated to cost $200 million.
The district says it's dealing with financial restraints and added costs with inflation as Wake's population continues soaring.
There's been a boom in Southern Wake and Strickland says data analysis shows Eastern Wake will be the next area to experience extensive growth.
"As we continue to add new schools, we'd be lucky to hold our own," said Strickland. "Right now, we are trying to be more efficient in the work that we do, in trying to get ahead of things before they become major problems."