Our callback number to let us know if your child will be absent is 604.903.3630 When we experience high rates of student absenteeism, we try to track the numbers if the absences are due to colds and flu - so it's important that you let the school know the reason why your child will not be attending school. Windsor House has a call back number for you to give us that information. Please call 604.903.3630 with the details. Thank you.