Most office cleaning problems aren’t a sign of a bad cleaning company. They’re a sign of no checklist at all, or one nobody has looked at since it was written. Without a structured, frequency-based task list, cleaning drifts toward whatever’s visibly dirty that day, and the tasks that matter most for hygiene, rather than appearance, are usually the first to get skipped.

Research from the University of Arizona has repeatedly found that office desks, keyboards and phones carry significantly more bacteria than most people assume, often more than commonly cleaned surfaces like a toilet seat. The point isn’t to alarm anyone. It’s that the surfaces people touch most are rarely the ones that look dirty, which is exactly why a checklist matters more than a general instruction to “keep the office clean.”

Daily tasks

These are the non-negotiables. Skipping daily cleaning doesn’t just make an office look worse, it lets dirt and bacteria build up in a way that weekly or monthly cleaning can’t fully undo.

• Empty bins and replace liners


• Vacuum carpets and mop hard floors in high-traffic areas


• Wipe down and sanitise high-touch surfaces: door handles, light switches, lift buttons, shared equipment


• Clean and restock washrooms, including consumables


• Wipe kitchen and breakout area surfaces, including shared appliances


• Dust and tidy reception and meeting rooms ahead of the working day

Weekly tasks

Weekly cleaning covers the areas that don’t need daily attention but will visibly deteriorate if left for a month. Office Cleaning Services London

• Vacuum under desks and in areas daily cleaning routinely misses


• Clean glass partitions, mirrors and interior windows


• Wipe skirting boards, door frames and light switches beyond the daily high-touch pass


• Deep-clean kitchen appliances: microwave interiors, fridge surfaces


• Dust higher surfaces: shelving, monitor tops, cabinets

Monthly tasks

These are the tasks that get missed most often, precisely because nothing looks obviously wrong if they slip. They’re also where most of the long-term wear and hygiene risk actually sits.

• Carpet and upholstery care beyond routine vacuuming, scheduled according to traffic levels rather than a fixed calendar date


• Full washroom deep clean, not just daily servicing, including descaling and hygiene work that a daily visit doesn’t cover


• Air vent and blind cleaning


• Deep clean of communal fridges and kitchen storage


• Review of consumable stock levels and reordering schedules

What a checklist won’t fix on its own

A checklist tells you what should happen. It doesn’t tell you whether it actually did. That’s the gap between offices where cleaning genuinely works and offices where standards slowly slip: verification. A cleaning provider who can show you a completed, dated checklist or a written quality report is giving you something to check against. One who can’t is asking you to take the standard on trust.

This matters most for the tasks that are easy to skip without anyone noticing immediately, particularly monthly deep-cleaning work. If you’re not sure how often your office actually needs a full deep clean rather than routine servicing, that’s worth raising directly with your provider rather than assuming the daily and weekly checklist is covering it.

Building this into a contract, not just a habit

A checklist works best when it’s part of what you’re actually paying for, not an informal add-on. Before agreeing a cleaning schedule, it’s worth confirming:

• Which tasks are daily, weekly and monthly, in writing


• Who verifies the checklist was completed, and how


• Whether monthly and periodic tasks are included in the base contract or charged separately


• How the schedule gets reviewed if your office’s usage changes, such as increased footfall or a change in working pattern

An office that hasn’t reviewed its cleaning schedule since before 2022 is very likely being cleaned for pre-pandemic occupancy patterns, not how the space is actually used now.

Charles Alabi is COO of Citywide Cleaning Company, providing commercial office cleaning across London since 2004.