Most small businesses inherit their cleaning frequency rather than choosing it. Someone signed a contract years ago, the schedule has never been revisited, and the office has since doubled in headcount. The result is either money spent on nights that are not needed or complaints on the nights that are.
Frequency is not a matter of taste. It is a function of three measurable things, and it is worth recalculating whenever your business changes shape.
Start with the restroom ratio
If you want one number that predicts your cleaning needs, use people per restroom fixture. Restrooms are the highest-consequence area in any office: they generate the fastest complaints, the most visible failures, and the only cleanliness issue employees will raise unprompted with management.
A rough rule that has held up well across the small offices we service: fewer than fifteen people per restroom and every-other-day service is workable. Above twenty-five, nightly service is not a preference — it is the point at which the supply level, not the cleanliness, starts failing between visits.
Three inputs that set frequency
- Headcount and hours. Twelve people on a hybrid schedule with three days in the office is a different building from twelve people there five days a week.
- External foot traffic. Clients, patients, deliveries and walk-ins multiply what the headcount alone suggests. A twelve-person office that sees forty visitors a day behaves like a much larger space.
- Shared facilities. A kitchen where people eat lunch daily, a break room with a coffee machine, a shower for cyclists — each one adds a nightly requirement that a purely desk-based office does not have.
What belongs on each rhythm
Nightly, or on every service night
- Restrooms cleaned, disinfected and restocked
- Break room and kitchen surfaces, sinks and appliance fronts
- All waste and recycling removed from the building
- High-touch points: door handles, light switches, elevator panels, shared equipment
- Entry glass at hand height and reception surfaces
- Floors vacuumed or mopped in circulation areas
Weekly
- Desks and workstation surfaces sanitised in full
- Interior glass and partition panels
- Chair bases, legs and armrests
- Baseboards in corridors and common areas
- Refrigerator interior cleared and wiped
Monthly
- Vent and register faces throughout
- Light fixture covers and high-level dusting
- Full interior window glass
- Upholstered seating vacuumed with attachments
- Storage rooms, closets and behind large furniture
Quarterly or twice yearly
- Carpet extraction in high-traffic zones
- Hard floor strip, seal and recoat where applicable
- Exterior-facing window glass
- Deep cleaning of kitchen appliances inside
The tasks that get forgotten
Every office we take over has the same short list of neglected items, and they are neglected for the same reason: they were never written into a scope, so nobody was responsible for them.
- The vertical face of the reception desk, where shoes and bags hit it
- The underside of shared table edges in meeting rooms
- Cable trays and the floor beneath desks
- The top surface of monitors and partition rails
- The break room refrigerator door seal
- Entry mats, which need lifting rather than vacuuming in place
Signs your frequency is wrong
Two failure modes, and they look completely different. Under-serviced offices show it in the restrooms first — supplies running out mid-week, and a persistent smell that returns within a day of cleaning. That is not a quality problem; it is a frequency problem, and asking the crew to try harder will not fix it.
Over-serviced offices are harder to spot because nothing goes wrong. The tell is a nightly contract on a space that is occupied three days a week, or a scope with monthly tasks in a building that would comfortably run on quarterly. That is money that could be redirected into periodic floor work with a much higher visible return.
Budgeting the contract honestly
Cleaning is one of the few line items where the cheapest quote is reliably the most expensive choice, because the way a low bid gets to its number is by cutting labour hours. The scope stays identical on paper; the crew simply has less time to deliver it. That shows up two months later as skipped zones and a conversation nobody wanted to have.
Ask every bidder for two numbers alongside the price: the labour hours allocated per visit, and the crew size. Those two figures make quotes genuinely comparable in a way that a monthly total never does. A quote at three hours a night and one at ninety minutes a night are not competing offers for the same work, however similar the scope documents look.
It is also worth separating consumables from labour on the invoice. Paper products, soap and liners are a real cost that fluctuates with your headcount, and burying them inside the cleaning line makes it impossible to see whether your cleaning cost or your usage changed when the total moves. Itemised, both stay visible and neither surprises you.
Making the schedule survive growth
Write frequency into the scope as a variable, not a constant. A scope that says "restrooms serviced nightly at current headcount, reviewed at 30 people" tells everyone what triggers a change. Without that, the schedule silently falls behind the business, and by the time anyone notices, the relationship with the vendor is already strained.
A quarterly fifteen-minute review with your account manager is enough. Headcount, traffic changes, new facilities, upcoming moves. Most adjustments are small when they are made on time and expensive when they are not.
Common questions
Not always. A twelve-person office with low visitor traffic and one restroom often runs well on three nights a week, provided waste and restroom service are on those nights. What is rarely sufficient is once-weekly service for any office with a shared kitchen.
After hours in almost every case. It avoids disruption, and crews work considerably faster in an empty space. Early morning before opening is the usual alternative when building access after hours is restricted.
Ask each one for a zone-by-zone scope with task frequencies and the number of labour hours per visit. A flat monthly price without that detail is not comparable to anything — two quotes can differ by half and describe entirely different amounts of work.
