Education
Half of Year 9 is off on Monday. What happens to the classrooms?
Monday morning, the absence figures come in and it is not a normal Monday. Three classrooms, two toilet blocks and the dining hall are all in the picture. Parents are already emailing. The deep-clean quote you request arrives with a date next week attached to it, and the timetable carries on regardless.
In short
A machine in the caretaker's store lets rooms be cleared during free periods and handed back the same day, with a dated certificate for parents, governors and inspectors — instead of waiting for a deep-clean booking next week.
6 min read ·
Why the timetable is the constraint
Schools cannot pause. Rooms are occupied period after period, and the only genuine windows are free periods, lunch and after the last bell. Any solution that needs a contractor's diary to line up with those windows will usually miss them.
That is why so many schools end up doing nothing more than a surface wipe and a note home — not because they are unwilling, but because nothing else fits between period three and period four.
Treatment that fits between lessons
A short whole-room cycle fits a free period comfortably. The site team cleans the room as normal, drops the machine in with a do-not-enter card showing the safe entry time, and moves to the next room while it works — then leapfrogs back.
One 8kg unit treats up to five rooms per hour depending on size, so a corridor of teaching spaces is realistic across a day without displacing a single lesson.
- Classrooms, toilet blocks, changing rooms and the dining hall on one rota
- No corrosive residue on IT equipment, whiteboards or soft furnishings
- Dated certificates to reassure parents and evidence the response to governors
- Holiday and half-term deep treatment at no extra call-out cost
The half-term advantage
The strongest argument for owning the capability is not the outbreak — it is everything you can treat when there is no outbreak. Half-term becomes a whole-site preventative cycle instead of a quote you decided you could not justify.
At roughly £10–£12 + VAT per treated room on a lease from £450 per month + VAT, preventative treatment stops being a budget conversation.
Frequently asked
- Can site staff run this, or do we need specialists?
- Site and caretaking staff are trained as operators as part of the lease. Only trained and competent staff may operate the machine.
- Do pupils need to be off site?
- The room being treated must be unoccupied, and re-entry times are calculated per room at survey and displayed on the door. The rest of the school carries on as normal.
- Is it safe around IT equipment?
- Yes. The hydrogen peroxide based disinfectant leaves no residue and breaks down to water and oxygen, so laptops, boards and projectors are unaffected.
Sources: material published by Sanondaf UK at sanondaf.co.uk (news, research and case studies) and the technical and commercial documentation held by the Shropshire & West Midlands office. Figures are indicative and confirmed at survey. Efficacy is stated as up to 99.9999% reduction.