The overhead problem in k–12 schools
Classrooms, gyms and cafeterias collect overhead dust all year.
Custodial teams rarely have the equipment or time for high work.
What to clean first
Supply Register and Diffuser Cleaning
Supply register and diffuser cleaning removes the dust, lint and grime that collects on the face and visible fins of the vents that blow conditioned air into a room.
Return Air Grille Cleaning
Return air grille cleaning removes the heavy dust and lint that builds up on the large grilles that pull room air back to the HVAC system.
Light Fixture and Troffer Lens Cleaning
Light fixture cleaning removes dust, dead insects and film from the lenses, louvers and housings of commercial troffers and surface-mounted lights.
Acoustic Ceiling Tile Cleaning
Acoustic ceiling tile cleaning removes surface dust, smudging and discoloration from drop-ceiling tiles without replacing them.
Flag and Banner Dusting
Indoor flag and banner dusting removes the dust and cobwebs that settle on hanging flags, championship banners and pennants in gyms, schools, churches and arenas.
High-Bay Light Cleaning
High-bay light cleaning removes the heavy dust that coats fixtures hung 20 to 40 feet or more above warehouses, gyms, manufacturing floors and big-box stores.
Commercial Kitchen Ceiling Cleaning
Commercial kitchen ceiling cleaning removes the grease film, dust and soil that collect overhead in cooking and prep areas.
Projector and Projection Screen Cleaning
Projector cleaning removes dust from the exterior housing, intake vents and mount of ceiling projectors, and from projection screen cases.
Recommended schedule
| Area | Frequency |
|---|---|
| Classrooms (vents, lights, tile) | Every 12 months, over summer |
| Gym and cafeteria | Every 6 months |
Good to know
- Large districts can be scheduled building by building.
Other services for k–12 schools
Above eye level cleaning for k–12 schools: FAQ
Can work be done while school is in session?
Most work is done during breaks, evenings or weekends.
Last updated October 4, 2026.