General office is the building type every published rate in this record is calibrated on, which makes it the easiest space to price and the easiest to under-specify. The arithmetic is simple; what people get wrong is the inputs, and specifically the difference between the area on the lease and the area a cleaner actually walks.
Doing the sum
Cleanable square footage, times a per-visit rate, times visits per month. Every published per-visit figure in this record is usable that way, and doing it with two or three of them gives you a range rather than a false precision.
What a standard office scope contains
Desks and surfaces, floors vacuumed and hard floors mopped, restrooms cleaned and restocked, kitchens and break areas, trash and recycling, and glass at entrances. Anything beyond that is a periodic and should be named.
Where offices stop being standard
Open-plan with hot desking, heavy kitchen use, client-facing floors held to a higher standard, and any hard floor content beyond a lobby. Each one moves the rate and none is in the calculators. The test is simple: if a walkthrough would surprise someone who had only read the floor plan, the calculator is going to be wrong, and the bid should be built rather than looked up.
The number that ends the conversation
A monthly total at a stated frequency. Ask every bidder for that figure alongside whatever unit they prefer and the comparison becomes trivial. It also removes the most common source of argument at renewal, because a monthly total at a stated frequency is a promise about both the price and the service, and neither can be quietly changed without the other becoming visible.
Questions people ask about office cleaning cost
How much does it cost to clean a small office?
Published monthly bands for small offices in this record start in the low hundreds and rise steeply with frequency. The band is only meaningful once visits per week are fixed.
Is it cheaper to hire a cleaner directly?
Sometimes on paper, and it moves employment, insurance and cover for absence onto you. Those are the costs a contract rate is really buying.
How often does an office need cleaning?
Occupancy decides it more than size. Daily is normal for client-facing space; three nights a week is common for lightly used offices.
Are supplies included?
Ask. Paper and soap are a real line and either arrangement is fine as long as every bid uses the same one.