Monthly tasks are invisible until they aren’t. Nobody notices dust on top of a cabinet for three weeks, and then everyone notices it at once.
They’re also the easiest tasks to silently drop, because nobody is checking on any given day.
The monthly list
High level
- Tops of cabinets, cupboards and shelving
- Tops of partitions and screens
- Picture frames and wall art
- Exposed pipework and conduit
- Ceiling junctions and cornices, cobwebs
- Above door frames
Ventilation
- Air vents and diffusers
- Extractor grilles in bathrooms and kitchen
- Heat pump unit faces
- Heat pump filters checked (cleaned per building services schedule)
- Ceiling fan blades
Lighting
- Light fittings dusted
- Diffusers wiped, or removed and washed where practical
- Emergency light housings
- Desk lamps
Furniture
- Under and behind desks, cabinets and shelving
- Upholstered chairs vacuumed
- Sofa cushions lifted, underneath vacuumed
- Chair arms and backs wiped
- Under reception seating
Kitchen
- Fridge interior, shelves out, washed, replaced
- Freezer checked
- Cupboard interiors wiped
- Behind and under the fridge
- Behind and under the dishwasher
- Small appliances descaled
- Rangehood filter degreased
Bathrooms
- Extractor grille removed and cleaned
- Silicone checked for mould
- Deep descale of all tapware
- Drain treatment
- Under and behind the vanity
Other
- Signage and wayfinding wiped
- Fire equipment cabinets dusted (exterior only)
- Skirtings washed rather than dusted
- Stairwell full clean
- Storage areas
Why these matter more than they look
Vents and filters. A clogged extractor grille means the bathroom doesn’t ventilate, which is where mould in the silicone comes from. It also means the heat pump works harder and costs more to run.
Light diffusers. Dust and dead insects reduce light output measurably. An office that feels dim often just has dirty diffusers.
Under furniture. Accumulated soil is abrasive and shortens carpet life. It’s also where pests establish.
Fridge interior. The most common source of an office kitchen smell, and the thing nobody owns.
Upholstery. Fabric chairs hold dust and allergens. Vacuuming them monthly is a genuine air-quality intervention, not a cosmetic one.
How to check whether they’re happening
Monthly tasks are easy to audit precisely because they’re infrequent. Pick a day, any day:
- Run a finger along the top of a filing cabinet. Should be clean.
- Look at an air vent. Should not be furred.
- Look up at a light diffuser. Should not have visible debris.
- Pull out the fridge shelf. Should be clean underneath.
- Lift a sofa cushion.
- Look behind the dishwasher.
- Look at the bathroom extractor grille.
If four or more fail, monthly tasks aren’t running, regardless of what the schedule says.
The structural reason they get dropped
A cleaner working to a flat weekly rhythm has no natural prompt to do a monthly task. It relies on memory, on a busy shift, for work nobody will notice if it’s skipped.
The fix isn’t nagging. It’s scheduling: fix monthly tasks to a specific day, first Monday of the month, every month, and record them separately from the regular clean.
That’s what a per-task record does that a signature sheet doesn’t. If "vents dusted" hasn’t been marked complete since March, you know in March, not in September.