What are the duties of an office cleaner?

When people ask what the duties of an office cleaner are, the answer seems obvious: cleaning. In reality, it is one of the most underrated jobs in commercial real estate. An office cleaner does not simply make dust disappear — they protect a company's image, look after the wellbeing of its staff, and often spot problems before they become expensive.

At Ménage Parfait we employ more than 35 agents who work in Paris offices every evening. This article describes their real duties — the ones on the job description, but also all the ones nobody sees. You will find the breakdown of a real shift, our methods, the legal framework of the trade, and the misconceptions we hear most often.

What does an office cleaner's day really look like?

In a Paris office building, our agents usually work between 6:00 and 10:00 pm, once the staff has left. Far from a mechanical routine, every evening begins with a phase of observation.

The site walk: observe before acting

Before taking out a single trolley, the agent walks the premises. This quick assessment shapes the whole service. They check in particular:

• whether a special event took place during the day (meeting, lunch, delivery);
• which meeting rooms were most used;
• any incidents reported by the client;
• the consumables that need restocking.

The order of operations: a method, not improvisation

The agent then follows a precise sequence, working from the dirtiest to the cleanest areas, so as never to re-contaminate a zone already treated:

1. Empty the bins and replace the liners.
2. Collect forgotten cups and tidy the spaces.
3. Dust desks, phones, handles and contact points.
4. Disinfect kitchens and washrooms.
5. Treat the floors: vacuuming, then damp sweeping or washing depending on the surface.
6. Run a final quality check before leaving the site.

The last fifteen minutes: the most important

Paradoxically, the final fifteen minutes decide the perceived quality. The agent passes through the main areas again: a misplaced chair, a smear on a window or an empty dispenser can make it look as if nothing was done — even after three hours of flawless work.

The most underrated task: contact points

If we had to single out one task that changes the perceived quality of a building, it would be cleaning the contact points.

Door handles, light switches, lift buttons, the fridge handle, meeting-room remotes: no one notices when they are clean, but everyone immediately notices when they are dirty. Since the pandemic, many companies have understood that a provider's seriousness is judged on these invisible details. A spotless kitchen and clean handles are enough to convey overall rigour.

The hidden duties: the agent as the building's eyes and ears

A large part of the job appears on no job description. In an empty building, our agents are often the first to spot a problem. They regularly report:

• a leak under a sink;
• a broken air-conditioning unit;
• a window left open;
• an unusual smell;
• a faulty light or fluorescent tube;
• a security issue (a door that no longer locks, a faulty badge).

A relational and logistical dimension

Beyond monitoring, the agent handles concrete responsibilities: tracking paper and soap stock, dealing with occupants, opening or closing certain zones, and feeding information back to the client. On some sites, the agent knows the building better than the facility manager.

The professional method: what sets a trained agent apart

This is where the gap opens up between someone who cleans and a professional office cleaner. At Ménage Parfait, method comes before speed. Our protocols rely on:

• damp sweeping, which captures dust instead of scattering it;
• the double-bucket system, so we never rinse with dirty water;
• colour-coded microfibres (one colour per zone);
• eco-labelled products and controlled dosing;
• bio-cleaning protocols where the site requires it.

Everyday equipment

Equipment is matched to the site. Our agents mainly use professional vacuum cleaners, scrubber-driers depending on the surfaces, a Numatic pro system for certain deep cleans, compartmentalised trolleys, microfibres in different colours, and precisely dosed products.

Duties that change with the type of office

Cleaning offices means nothing until you say which ones. Each type of site is almost a different trade.

Open space

Lots of floors, bins and meeting rooms. The challenge: consistency and managing volume across large areas.

Medical and paramedical practices

Enhanced disinfection, specific waste handling (clinical waste), stricter protocols and traceability. The margin for error is close to zero.

Law firms

Absolute discretion and confidentiality. The agent works among sensitive files: behavioural rigour matters as much as cleaning quality.

Coworking spaces

Heavy footfall, intensely used kitchens and washrooms in use all day. Daytime interventions are often added on top of the evening service.

Server room / technical room

Very little water, specific equipment and maximum attention to electricity and dust. A mistake can be very costly in IT hardware.

Summary: priority duties by type of site

Legal framework, safety and misconceptions

Contrary to a stubborn belief, the trade is strictly regulated. An office cleaner's duties are carried out within a precise professional framework:

• the French national collective agreement for cleaning companies;
• job classifications (AS, service agent; ATQS, highly qualified service agent);
• workplace health and safety rules;
• product safety data sheets (SDS);
• training obligations;
• wearing personal protective equipment (PPE).

Safety is part of the job

Products must never be mixed: some combinations (bleach and acid, for example) release dangerous gases. Knowing the products and their dosing is not a detail — it is a safety skill in its own right.

Three misconceptions we keep hearing

“Anyone can clean.”
False. Methodically cleaning a 2,000 m² building without re-contaminating treated areas is genuine expertise.

“It's a job without responsibility.”
False. A product mistake can damage a parquet floor, ruin IT equipment or cause an accident.

“It's purely physical.”
False. The job demands organisation, rigour, an eye for detail and real communication skills.