WHS Considerations When Contracting Office Cleaners

Contracting office cleaners is often treated as a purely commercial decision about price and scope, but it also carries work health and safety implications that are easy to overlook until an incident forces the issue. Cleaners work in your building, often after hours and sometimes alone, using equipment and chemicals, and the law does not treat them as invisible simply because they are not your employees. The decision worth making deliberately is how to factor WHS into the contracting process from the start. This guide sets out the main considerations, with the clear caveat that specific legal obligations should be confirmed with qualified WHS or legal advisers.

Understand that duties can be shared

Australian work health and safety law is built around duties owed to workers and others affected by work, and those duties are not limited to direct employees. A business that engages a cleaning contractor may still owe duties in relation to that work, and duties can be shared between the cleaning company and the business whose premises are being cleaned. This is a general principle rather than legal advice, and how it applies depends on the arrangement, the site and the facts.

The practical takeaway is that "they are a contractor, so it is their problem" is not a safe assumption. Treating WHS as a shared responsibility, coordinated between your organisation and the cleaning provider, is both the safer and the more defensible position. Where you are unsure how the law applies to your situation, confirm it with qualified advisers rather than guessing.

The specific risks of cleaning work

Cleaning carries a recognisable set of hazards, and understanding them helps you assess a provider's approach. The main risk areas include:

• Slips, trips and falls, from wet floors, cords and working in low-light after-hours conditions.
• Chemical exposure, from cleaning products, requiring correct handling, storage and safety data sheets.
• Manual handling, from moving equipment, furniture and waste.
• Electrical safety, from vacuum and machine use and equipment maintenance.
• Lone and after-hours working, with reduced on-site support if something goes wrong.

None of these are unusual or unmanageable, but they should be actively addressed rather than assumed away. A provider that can describe how it manages these risks is demonstrating a functioning safety culture.

After-hours work needs particular attention

Much office cleaning happens after hours, which introduces considerations that daytime work does not. A cleaner working alone at night has less immediate support if injured, navigates the building in quieter and sometimes lower-light conditions, and interacts with access and security systems. These factors do not make after-hours cleaning unsafe, but they do warrant explicit arrangements: a means of communication or check-in, clear access and emergency procedures, and induction to the specific building.

Coordinating these with building management matters, since emergency response, lift access and security all involve the building's own systems. A structured after-hours cleaning arrangement should come with defined procedures for lone working, access and incidents rather than leaving individual cleaners to improvise. Where your building has particular hazards or after-hours constraints, make sure they are covered in the induction.

What to check before contracting

WHS should form part of how you assess and select a cleaning provider, not an afterthought once they start. The table below sets out common checks and why each matters. Treat it as a practical starting point and confirm what is required for your situation with qualified advisers.

WHS consideration	What to look for	Why it matters
Insurance	Current workers compensation and public liability	Cover for injury and third-party harm
Safe work procedures	SWMS or risk assessments for cleaning tasks	Shows hazards are actively managed
Chemical safety	Safety data sheets, correct storage and handling	Manages exposure risk
Training and induction	Evidence staff are trained and site-inducted	Competent, informed workers
After-hours procedures	Lone working, access and emergency arrangements	Addresses after-hours specific risk
Incident reporting	A clear process for reporting and responding	Traceability and continuous improvement

Asking for these before signing sets the expectation that safety is part of the relationship, and it gives you documentation that supports your own governance.

Coordinate rather than assume

Once a provider is engaged, WHS is maintained through coordination, not a one-off check. Practical steps include sharing relevant site hazards and emergency procedures with the provider, agreeing how incidents are reported both ways, ensuring the provider's staff are inducted to your building, and reviewing arrangements when the site or the work changes. If cleaning involves any unusual tasks or areas, such as work near sensitive equipment or restricted zones, make sure these are covered explicitly.

This coordination also protects your organisation. If an incident occurs, being able to show that hazards were communicated, procedures were in place, and the provider was properly inducted and insured demonstrates that safety was managed rather than neglected. Keeping this documentation on file, alongside your other cleaning records, means it is available if needed.

Keep the framing accurate and seek advice

WHS is an area where cautious, accurate framing matters. The considerations here are general and practical; they are not a substitute for legal advice, and work health and safety obligations can be specific to your arrangement, industry and site. Where duties, documentation requirements or incident obligations are unclear, confirm them with qualified WHS or legal advisers rather than relying on general guidance. A good cleaning provider will support this by supplying its safety documentation readily and engaging constructively on shared arrangements.

Handled well, WHS is not a barrier to contracting cleaners but a marker of a professional relationship. A provider that takes safety seriously is usually one that takes delivery, vetting and documentation seriously too, which tends to correlate with a reliable service overall.

If you engage cleaners for offices across Melbourne's inner east and want a provider that treats work health and safety as a shared, documented responsibility, contact us to discuss how we manage it alongside your own arrangements.