Consulting workers and subbies on safety decisions: the duty, the steps and the records

Consultation is the part of work health and safety that most residential builders treat as an administrative task. The site pack gets a consultation page, the subbies sign it at the pre-start, and everyone moves on. That approach survives a quiet job and falls apart the moment something goes wrong, because the duty is not to hold a meeting or produce a form. It is to genuinely involve the people doing the work in the decisions that affect their safety.

The distinction matters commercially. If a worker is injured on a task where the method was set without any real input from the crew, the paperwork you hold is not a defence. It is evidence that you knew the task carried risk, that you had a mechanism for involving the workers, and that you did not use it. That is a worse position than having no process at all.

This article sets out what consultation actually requires on a residential site, how to run it as a set of steps rather than a document, and what to record so the record shows a decision being shaped, not a box being ticked.

What the duty actually requires of a principal contractor

The duty to consult sits alongside the primary duty of care. It is owed to workers you engage directly, to workers of subcontractors, to labour hire, and to anyone else carrying out work you have influenced or directed. On a residential site that is almost everyone who walks through the gate.

The duty is triggered by decisions, not by calendar events. Any decision that affects work health and safety brings it into play: the sequence of trades, the choice of formwork or scaffolding system, the method for cutting and handling materials, the controls for a hazardous substance, the arrangement of the site during a pour. When you make that decision, the people affected must be consulted.

Consultation has a defined shape. Workers must be given the relevant information about the matter, a reasonable opportunity to express their views, and the chance to contribute to the resolution of the issue. That last element is the one most often dropped. Telling workers what you have decided and inviting questions is communication. It is not consultation.

The duty also sits alongside the specific obligations that attach to high-risk work. Where a substance like crystalline silica is present, the person conducting the business or undertaking must identify the hazard and manage the risk, and the workers exposed to it are precisely the people whose knowledge will tell you whether the control you have chosen will hold up in the real conditions of the job.

Why a signed consultation page proves nothing

A signature on an attendance sheet records that a person was in a room, or that a document passed in front of them. It does not record that they were given information in a form they could use, that they had time to consider it, or that anything they said was taken into account.

The practical problem is that the paperwork is generated at the wrong end of the process. It is prepared when the safety pack is assembled, which is usually after the method has been chosen and the subbie engaged. By then the decision is closed. The consultation page documents a decision that has already been made, which is the opposite of what the duty requires.

Consider what a regulator or a plaintiff looks for. They look for a change in the method that traces back to a worker’s input. They look for a record of a concern being raised and resolved. If every consultation record on the job shows the same wording and no resulting change, the pattern itself is the problem: it suggests the process was never capable of altering anything.

This is why the records matter but are not the point. The record is the shadow the process casts. If the process is real, the record will show it. If the process is not, no amount of form design will fix it.

Consultation on silica: the hazard where it is skipped most

Crystalline silica is present in concrete, brick, tiles, engineered stone and many of the products a residential job handles every day. The dust is generated by cutting, grinding, drilling, chasing and demolition. The controls that work in one location with one tool do not necessarily work in another, and the workers holding the tool know that better than anyone in the office.

That is why silica is the clearest test of whether consultation is real on a job. The controls depend on the tool, the material, the position of the cut and the ventilation of the space. A method statement written at a desk without input from the person who will be doing the cut is a guess. The person doing the cut can tell you whether the water feed will reach, whether the on-tool extraction will clog in that material, and whether the space will allow the positioning the control assumes.

Consultation here is not a courtesy. It is the mechanism by which you find out that the control you selected will not work in the conditions the job actually presents, before someone is exposed. A builder who runs the pre-start properly on a cutting task will usually be told something they did not know about the sequence, the access or the tooling.

Consultation on electrical work and temporary supply

Electrical safety on a residential site is a good second test because the hazard is often invisible and the people at risk are not the electrician alone. Temporary supply, leads run across access ways, tools used in wet conditions, and the interaction between trades all create risk that the person on the tools can see and the office cannot.

The electrical work itself is regulated and licensed, and the controls that apply to it are set by the relevant requirements. Consultation does not replace any of that. What it does is surface the site-specific conditions that a generic method cannot capture: that the lead run crosses the path the concreters will use, that the board position is behind where the scaffold will land, that a subbie intends to use a tool the supply was not set up for.

These are exactly the issues that get resolved cheaply in a pre-start conversation and expensively after an incident. A builder who consults on temporary supply arrangements before the trades arrive avoids the rework of moving a board, and avoids the more serious problem of a control that was never going to work.

The steps, in the order they have to happen

Consultation is a sequence, and the sequence is the part that protects you. Run out of order, it becomes notification.

Identify the decision

Be specific. “Consult on safety” is not a decision. “Decide the method for cutting the floor tiles in the bathrooms” is. The clearer the decision, the easier it is to give the workers the information they need to contribute to it.

Give the information

Provide the drawings, the safe work method statement, the product data and the manufacturer instructions relevant to the decision. If the workers do not have the information you have, they cannot contribute meaningfully. This is the step most often skipped because it takes time.

Ask, and give time to answer

Ask the people who will do the task. Ask the subbie who has done it on twenty other jobs. Give them enough time to think about it rather than catching them at the gate at seven in the morning. A question asked while someone is carrying a load is not a question.

Discuss before the decision is locked

The discussion has to happen while options are still open. Once you have ordered the system, engaged the subbie or set the programme, the consultation is retrospective and the value is gone.

Record what changed

Note the decision, who was consulted, what they raised, what changed as a result, and who owns any outstanding action. A record that shows a change is worth more than a page of signatures because it demonstrates the process had effect.

Review on site

Check the control works once work starts. Conditions on a residential site change daily, and a control agreed on Monday may not suit the conditions on Thursday. Build the review into the pre-start rather than treating it as a separate event.

Working with subcontractors and labour hire

Subcontractors are where consultation most often breaks down, because the builder assumes the subbie’s own safety system covers it. It does not. The subbie has duties to their own workers, and you have duties as the principal contractor to the workers on your site, including theirs.

The practical answer is to build consultation into the way you engage subbies rather than treating it as an add-on. When you verify a subbie before they start, the conversation about how they will be consulted, and how their workers will be involved in decisions that affect them, belongs in that same exchange. That is also the point at which you find out whether the subbie has a workable method for the task or is planning to improvise.

Labour hire and casual workers are the highest-risk group here. They are least likely to speak up, least likely to know the site, and most likely to accept a method that is unsafe because they do not want to be seen as difficult. Consultation has to actively draw them in, which means asking directly and making it clear that raising a problem will not cost them the next shift.

If you want the detail on how to run the verification side, the PointCPD article on verifying a subcontractor’s WHS arrangements before they start covers the documents and the questions. Consultation is the live half of the same relationship.

Worked example: the tiling decision that changed after the pre-start

A builder in western Sydney was finishing a two-storey brick veneer with four wet areas. The tiler had been engaged and the method for cutting the large-format floor tiles had been set: dry cutting in the bathroom, with the door closed and a fan in the doorway.

The pre-start for the tiling was run on the Monday. The tiler’s leading hand pointed out that the bathrooms had no window and the fan would simply move the dust around the room rather than out of it, and that the tiles were too large to cut in the space available anyway. He had done similar jobs and knew the cut had to happen outside on a wet saw with the tiles carried in finished.

The decision changed that morning. The builder set up a cutting station outside, ran a lead to it, and arranged for the tiles to be cut and carried rather than cut in place. The programme did not move. The record showed the decision, who raised the concern, what changed and who owned the setup.

The alternative is easy to picture. Without the pre-start, the tiler would have set up dry cutting inside on the Tuesday, the dust would have gone through the house, and the builder would have been managing a complaint from the client, a possible exposure for two trades, and a re-clean of the whole floor. The cost of asking the question was twenty minutes. The cost of not asking it would have been a week.

Recording consultation so it holds up

Keep the record simple and specific. It needs to show the decision, the people consulted, the information they were given, what they raised, what changed, and who owns the next action. It does not need to be long, and a long record that shows no change is worse than a short one that does.

• Name the decision rather than the topic, so the record connects to a real choice on the job.
• Record who was consulted by role and trade, including subbies and labour hire.
• Note the information provided, so it is clear the workers had what they needed to contribute.
• Record what changed as a result, even if the change was small. If nothing ever changes, the process is not working.
• Assign the remaining action to a named person with a date.
• Review the record when the method changes, not only at audit time.

The same discipline applies to the site induction, which is where consultation habits are set for the whole job. The PointCPD guide to the residential site induction checklist covers what to include so that the first conversation a worker has on site establishes that their view is wanted.

Where the work involves plant or temporary structures, the handover points are another place consultation has to be live. The article on scaffold inspection and handover on residential jobs sets out how those transitions work alongside the consultation duty.

What to do differently on the next job

Pick the three decisions on the next job that carry the most risk and run them through the full sequence before they are locked in. On most residential jobs those will be the cutting and dust-generating tasks, the temporary electrical arrangements, and the sequence where trades overlap in a confined space.

Give the workers the information, ask the question early enough that the answer can change something, and write down what changed. Keep the record short enough that you will actually keep it. Then review it on site when the conditions shift, because they will.

If you want the broader context on how safety content fits into your continuing professional development as a licensed builder in NSW, the PointCPD guide to how NSW builder CPD works sets out the structure, and the course catalogue lists the safety units available. Consultation is one of the areas where the gap between what the law requires and what happens on site is widest, and it is also one of the cheapest to close.

Questions builders ask

• Compliance
• Subcontractors
• Work Health Safety

Published 23 August 2026. General information for builders, not legal, financial or engineering advice for a specific job. Check current requirements with the relevant regulator or standard before relying on them.