When someone asks how often to clean commercial premises, square metres are not my first question. I want to know how many people use the space, how many visitors come through the door, whether the business runs one shift or three, and what happens to the floor on a wet Prague morning. A 250 m² office with twelve employees may need less work than a 90 m² shop beside a metro station. “Once a week” is not a useful answer until the operation is clear.
Square metres do not determine frequency; operations do
Floor area helps estimate vacuuming and mopping time. It does not tell you how quickly the place becomes dirty again. Start a commercial cleaning schedule with four operating facts: the number of regular staff, average visitor traffic, shift pattern, and the hours when cleaners can work without getting in the way.
Then split the premises into zones. An entrance from the street, washrooms and a break room each have their own pace. Their small size can be misleading; they often generate most of the work and most complaints. I once looked at a small Karlín office whose floor still appeared dirty despite cleaning three times a week. Adding another full visit would have cost more and solved little. The missing pieces were a proper entrance mat and a quick wet-weather wipe at the door.
Use this as a starting matrix, then adjust it on site:
| Operation | Typical load | Daytime service | Routine cleaning | Watch closely | |---|---|---|---|---| | Small office, up to 15 people, few visitors | low to medium | waste and break room as needed | 2-3 times a week | washrooms, coffee point, entrance | | Office with 15-50 people | medium to high | washrooms, waste, hygiene supplies | every working day | meeting rooms, touchpoints, carpets | | Street-facing retail store | high and weather-sensitive | entrance, spills and bins throughout the day | daily, sometimes more often | flooring, fitting rooms, entrance glass | | Warehouse or light production | shift-based, dusty or greasy | incidents and safe walkways | based on shifts and soil type | industrial floors, lockers, staff areas | | Clinic or another hygiene-sensitive site | controlled hygiene requirements | according to the site's hygiene regime | at least daily under site rules | separation of clean and used equipment |
Clinics, food premises and some production sites need a dedicated hygiene regime. A general matrix cannot replace operating rules, safety requirements or an infection-control plan. For an ordinary office or shop, though, it shows why equal floor area does not mean an equal cleaning service scope.
Daytime service solves different problems from evening cleaning
Daytime service is not a smaller evening clean. Its job is to keep the premises usable while people are there. That includes spilled coffee, a full bin, a wet entrance, a washroom check, and refilling soap, paper towels or toilet tissue. Dust on top of a cabinet can wait. A puddle near the till cannot.
The service agreement should say what in-house staff handle immediately and what belongs to the external team. In a small shop, employees may reasonably keep an approved floor product, absorbent cloths and a warning sign nearby. The cleaning provider then carries out the systematic work at the planned visit. If the provider must respond to every incident, the agreement needs a response time and a call-out price.
Set one reporting route as well. A photograph and two lines in a designated channel are more useful than calls to several people. State the location, approximate extent and whether the issue is a safety risk. The provider can then decide whether to amend the evening visit or send someone at once.
Build the weekly plan around zones and use
A sensible office cleaning frequency is more than a task list saying “vacuum, dust, empty bins”. Mark each zone as high, medium or low frequency. For larger premises, put the categories on a floor plan. A walkthrough quickly reveals where people actually move and where the written schedule has been guessing.
High-frequency zones
Entrances, washrooms, break rooms, checkout areas, waiting rooms and main walkways need a daily check. Busy sites may need several checks per shift. Tasks normally include visible soil, waste, sanitary fittings, food-preparation surfaces, handles and floors. Use disinfectant where the hygiene plan or a specific risk calls for it. Automatically disinfecting every surface is neither necessary nor always suitable for the material.
Medium-frequency zones
Desks, meeting rooms, internal glass and quieter corridors can often be cleaned a few times a week. Desk use matters. A shared workstation changes hands and accumulates touch more quickly than a desk used by one employee. For screens, electronics and lacquered furniture, the correct product and controlled moisture matter more than simply increasing frequency.
Low-frequency zones
Archives, closed storage, cabinet tops and rarely used rooms may fit a weekly, monthly or periodic rota. Low frequency must still have a date. Otherwise the work quietly becomes “never” while daily priorities take over.
Access changes the timing. Vacuuming an open office during video calls is slow and disruptive. Machine-scrubbing a shop floor around customers is unsafe. Record which tasks happen before opening, after closing or during a quiet part of the shift. Add manufacturer guidance for sensitive floors; stone, oiled timber and specialist slip-resistant surfaces do not all accept the same chemicals or machinery.
Periodic work belongs in the calendar and the budget
Window cleaning, carpet extraction, machine floor care, upholstery, light fittings and high-level dusting rarely fit inside a normal visit. They still shape how the premises look. A carpet that has only been vacuumed for a year can remain grey after an otherwise excellent daily clean. That is not a failure by the cleaner holding the vacuum. It is a missing periodic task.
I prefer quotations with two visible parts:
- the base charge for daytime service and routine cleaning;
- a separate periodic-work calendar with an indicative month and price.
Frequency depends on the surface and its load. Entrance glass may need weekly attention while upper-floor exterior windows are cleaned twice a year. A meeting-room carpet can need spot treatment much sooner than carpet in a private office. In Prague, autumn rain and winter grit also bring forward machine cleaning for hard floors. Fine grit behaves like an abrasive under constant foot traffic.
Put these tasks in the annual calendar from the start. If the wording says only “as required”, they tend to wait until the result is visibly poor. At that point, a neglected periodic job is easily mistaken for a complaint about routine cleaning.
Test the frequency during the first four weeks
The first plan is a working hypothesis. After a month, review the operation instead of simply telling the cleaner to move faster. Track hygiene-supply consumption, floor condition at the busiest time, bin fill levels and repeated comments about the same area.
A practical four-week review looks like this:
- In week one, record actual time by zone and note unusual incidents.
- In week two, identify tasks that return sooner than expected.
- In week three, adjust the order of work, tool location and access time.
- After week four, change frequency or scope where the pattern is persistent.
This protects both sides. The client does not pay blindly for unnecessary visits, and the provider is not expected to squeeze hidden work into the original hours. A trial clean for small commercial premises can help, provided everyone judges it against an agreed scope rather than an unspoken picture of “clean”.
What a comparable request and quotation must contain
“Office, 300 m², three times a week” is not enough for fair pricing. Two quotations may appear to cover the same service even though one includes a daily washroom check and the other cleans washrooms only on scheduled evenings.
Your request should state:
- floor area and operation type, staff numbers, visitor traffic, shifts and opening hours;
- zones, required frequency and named tasks;
- flooring types and sensitive surfaces;
- periodic work and likely months;
- who supplies products, machinery and consumable hygiene stock;
- keys, alarm, parking, lift and out-of-hours access arrangements;
- quality checks, fault reporting and approval for extra work.
Compare price together with frequency, allowed time and exclusions. A lower base charge may be perfectly fair when it knowingly covers less. Trouble starts when the client expects daytime service but the supplier priced three evening visits. A precise cleaning service scope is not paperwork for its own sake. It prevents hidden expectations from becoming complaints.
If you need a realistic plan for an office, shop or small commercial site in Prague, ČistýKout is a local cleaning option. Send a no-obligation request through the ČistýKout contact form and include the operating pattern and high-risk zones. The proposed schedule can then follow the actual workload, not floor area alone.
