ImogenMac
All state schools have caretakers, often onsite or very near. Their responsibility will be individual in their contract- most will be responsible for employing and managing cleaners, opening and closing school gates and perimeter security, liasing with groups who rent the premises, setting alarms, break- ins and much more. The issue of keeping schools secure throughout the day , monitoring visitors access ( with the school office) is a top priority.
No they don't. The last school I worked in had two cleaners, one of them was the Senior Cleaner, responsible for organising and supervising the other one. All the other jobs were done by the Head or senior teaching staff or the school secretary. The jobs of moving stuff and putting stuff away was done by us teachers. Any caretakers I remember didn't work during the school day but did split shifts say 7-10am then 2-6pm. And I never knew one who organised the letting out of the school premises
Teachers do many of the tasks you have given to caretakers.