Aircon contractor insurance: who carries the risk on site

Insurance is one word doing the work of two. A person can be hurt while working on your premises. Property can be damaged by the work itself, yours or a neighbour's. Those are separate exposures. They answer to separate instruments, and a contractor can hold one without holding the other.

The blur is understandable, because both feel like the same question at the moment of asking. "Are you insured" is what actually gets asked, and a yes is easy to give. It covers whichever instrument the person answering happened to be thinking about. The version worth asking names the exposure before it asks about the paper.

Aircon work puts both on the table at once. Condensers go onto ledges and external walls. Indoor units come down from ceilings. Power is isolated and reconnected, and drain lines pass through structure belonging to somebody else. Work at height is its own topic and stays outside this page. It is still the reason the injury side here is not theoretical.

The two instruments also differ in what forces them to exist. One is a statutory duty with a named holder. The other is bought commercially, or agreed into a contract, or neither.

Work-injury cover is a duty an employer owes its own staff, and a property owner does not arrange it. The Work Injury Compensation Act requires an employer to hold an approved policy for defined groups of its staff, bought from an insurer the Ministry of Manpower has designated. The line runs from a company to the people on its payroll. It does not run through whoever owns the ceiling.

The duty is not uniform across a workforce. It is mandatory for every employee doing manual work, whatever they earn. For non-manual employees it is mandatory up to a stated salary line, and above that line the employer may choose. Choosing not to insure removes the policy, not the liability. A valid claim is still paid, out of the company instead of out of cover.

Fault is not part of this route. An employer is liable to compensate an injured employee regardless of who was at fault, which is exactly what separates the statutory path from a civil one. An employee cannot take both. A common-law action needs fault proved against the employer or a third party, and it goes to court rather than to the Ministry.

The claim itself runs through the employer. The employer notifies the Ministry of the accident, the designated insurer or the Ministry works out what is payable and issues the computation, and any objection goes back to the Ministry. No step in that sequence belongs to the occupier of the premises. What an occupier can do is establish in advance that the sequence has somewhere to begin.

Who counts as an employee is settled by the arrangement behind the work, not by the uniform. The Act reaches anyone engaged under a contract of service or apprenticeship, regardless of salary, age or citizenship. Such a contract can be written or spoken, so the absence of paperwork settles nothing on its own. The question underneath is whether the person is employed at all.

A self-employed person and an independent contractor are outside the Act. They appear by name on the Ministry's own list of who is not covered, alongside domestic workers and uniformed personnel. So a sole trader working alone has no work-injury policy to show, and no rule has been broken. There is nothing for the statute to attach itself to.

That is the arrangement most likely to be standing in your corridor. A company quotes, and two men arrive. Whether those two are on the company's payroll or working for themselves is invisible from the doorway, and it decides which paragraph above applies to them. The same company can send staff to one job and engage a self-employed pair for the next.

Layers make this harder rather than simpler. Where a company engages a subcontractor, that subcontractor's crew are the subcontractor's employees, and the duty belongs there. Ministry guidance to main contractors is to make sure every subcontractor holds cover for its own people, rather than leaning on a policy written around a project. A certificate bearing the name of the company you contracted with tells you nothing about a crew sent by a different one.

A separate liability can also attach to whoever engaged the contractor. The Act contemplates a principal holding liabilities of its own, and the Ministry's stated position is that a principal insures those under its own policy rather than under a contractor's. Whether that reaches any particular engagement turns on the arrangement and the facts, and this page does not settle it for anyone. It is the reason a business treats this as procurement rather than courtesy.

In a managed building, somebody asks these questions before you get the chance. A management corporation controls the common property that aircon work keeps touching, and evidence of contractor insurance is a common condition of letting anyone in. What an MCST is, and where its reach begins and ends, is set out separately. The shape of the requirement matters more here than its source.

The condition exists because the corporation is what remains once a contractor has packed up. A facade somebody cracked stays on the maintenance list regardless of whose drill made the crack. The office is not being obstructive by asking. It is protecting a repair bill it would otherwise absorb.

For a commercial occupier the requirement usually arrives twice. The building sets conditions on access, and the occupier's own procurement sets conditions on the appointment. Those are two different documents and they do not always agree. Reading them against each other before anyone is booked costs less than discovering the mismatch at the lift lobby with a van already downstairs.

Certificates get filed and then forgotten, which is the quiet failure in all of this. Cover that existed when a contractor was first approved may not exist when the same contractor returns for the next job. A condition checked once at onboarding and never again is a condition in name only.

Ask about the exposure rather than about insurance. The general question invites a yes, and a yes settles nothing. Naming the situation forces a specific answer, and a specific answer is either produced or visibly not produced.

Match the name on the certificate against the name on the invoice. A policy held by a related company, a parent, or the outfit that passed the job along is a different legal person from the one you contracted with. Check the period the policy runs against the dates the work is happening. Both of those are two-second reads once the document is in front of you.

Then ask who will physically be on site and who employs them. That single question does more than any certificate, because it decides whether the statutory route exists at all. A company sending its own staff will say so immediately. A company that subcontracts is not disqualified by admitting it. It has moved the question one layer down, which is where it needed to go next anyway.

Several neighbouring subjects sit on other pages. Which parts of the job carry a legal requirement, and which aircon contractor credentials survive an independent check, belongs to the licence guide. Electrical work has its own licensing regime and is handled there. The repair quote checklist covers what should sit behind a number before it is approved, and the wider aircon company trust signals are a guide of their own.