Nobody can tell you how often your office needs cleaning without seeing it, and any company that answers that question over the phone is quoting a default, not your office. What can be answered without seeing it is what the answer depends on. There are five variables, and knowing them turns a guess into a conversation you can actually judge.
The reason the honest answer is "it depends" is that two offices with the same square footage can differ by a factor of several in how fast they get dirty. Footfall, food, floor type, whether people share desks and what the space is used for all pull in different directions.
The five variables
How many people, and how many of them are visitors. Staff are predictable and mostly stay at a desk. Visitors arrive from outside with shoes, bags and a route straight through your entrance and your restroom. A space with heavy visitor traffic loads its entrance, lobby and restrooms far faster than headcount alone suggests.
Whether food is eaten in the space, and where. Food is the single biggest accelerator in most offices, and it matters more where it is eaten than how much. Food confined to a break room concentrates the problem somewhere designed for it. Food eaten at desks spreads it across the floor plan, into keyboards, under desks and into carpet.
What is on the floor. Carpet holds and hides; hard floor shows immediately and cleans faster. This is why an office with hard floors can look worse sooner and still need less intervention, and why a carpeted floor can look acceptable long past the point where it should have been addressed.
Whether desks are shared. A desk with one owner is maintained by that owner without anybody calling it cleaning. A hot desk belongs to nobody, and it shows within days.
What the work actually is. A design studio with materials, a clinic with clinical requirements, a workshop office next to a shop floor: each brings something into the space that a laptop-only office does not.
How the variables land, by type of office
A professional office with client visits (law, accounting, real estate) is usually driven by the entrance, the conference room and the restrooms rather than by the desks. The desks are low-traffic; the front of the space carries almost all the load and is also the part clients judge.
An open-plan floor is driven by shared surfaces and by desk-level food. Nothing in an open plan has a clear owner, which is exactly the condition that lets small problems persist.
A medical, dental or clinical suite is not really on this scale at all. It has requirements that come from regulation and from the practice's own protocols, not from how dirty the room looks, and those requirements decide the schedule before any of the five variables get a vote.
A warehouse or contractor office is driven by what walks in from the other side of the door. Dust and debris migrate from the operational space into the office space continuously, and the office floor is doing a job no ordinary office floor is doing.
A hybrid office with variable occupancy is the hardest case, because the load moves. Three busy days and two empty ones is a different problem from five moderate days, and a schedule set during one pattern quietly stops fitting when the pattern changes.
Why the answer should be written down, not agreed verbally
Whatever schedule you land on, the thing that makes it hold is a written scope: which areas, which tasks, on which visits. Frequency without scope is meaningless, because "twice a week" can mean two full visits or two partial ones, and the difference only becomes visible months later as drift.
A written scope also gives you the thing you need to renegotiate later. Occupancy changes, a team grows, a floor gets carpeted, a business starts seeing clients on site. When any of the five variables moves, the schedule should move with it, and that is a much shorter conversation when the original one was written down. The other things worth having in writing are covered in how to choose an office cleaning company.
What to bring to the assessment
Four things make an on-site assessment accurate quickly: your headcount and how many outside visitors you get in a normal week, where people actually eat, what your floors are, and which rooms already give you trouble. That last one matters most, because it is the only piece of information nobody can get by walking the space once.
Our office and commercial cleaning page covers what a scheduled visit includes across Fort Lauderdale and Broward. Ask for a free estimate and we will walk the space with you and put the schedule in writing, with the reasoning attached, so you can tell whether it still fits six months from now.