Key takeaways
- Noise-induced hearing loss is permanent and develops gradually, so a crew member will rarely notice the damage until it is already significant.
- Saws, grinders and nailers are the tasks most likely to expose a crew to harmful noise, and each one should be assessed rather than treating the whole site as a single noise environment.
- Removing or moving the noisy work, and choosing quieter tools and set-ups, does more than any protection a worker can wear, so those controls come before personal protection.
- Ear protection only works when it suits the task, is fitted correctly and is worn for the whole of the noisy work, which makes supervision part of the control rather than an optional extra.
- Where a threshold or method matters for a particular crew, the builder should check the current SafeWork NSW noise guidance and the duties that apply to the business rather than rely on a rule of thumb.
Most builders can name the hazards that have hurt someone on a site: falls, falling objects, live electrical work, a trench that was not supported. Noise rarely makes that list, even though it is the hazard that does its damage slowly, quietly and in full view of everyone on the crew. A framing crew cutting studs and sheets all day, a concreter grinding a ramp and a carpenter firing nails into a bearer can each be exposed to noise that causes permanent harm long before anyone complains about it.
The damage is not a matter of discomfort. Once the sensitive hair cells inside the ear have been damaged by loud noise, they do not recover, and the hearing lost is not restored by a rest or a quiet weekend. The loss usually starts at the frequencies that carry speech, so a worker may not notice it until conversations become hard to follow in a noisy room. For a builder, that means the protection has to be set before the damage is done, and the person setting it has to understand which tasks on the site are the problem.
This article covers the crew’s exposure to the noise made by the tools they use, saws, grinders and nailers in particular. It deals with assessment, the choice of protection and supervision. It does not deal with the separate problem of noise from the site affecting neighbours, which is covered in the article on noise control for residential neighbours. The aim is a practical plan a site supervisor can run on a Monday morning.
Why hearing loss from site noise is so easy to miss
Hearing loss from noise is gradual and painless. There is no injury to feel and no bruise to look at, so the early stages go unnoticed. A worker who has been on noisy tools for years may have lost some high-frequency hearing without realising it, and may only find out at a hearing test, or when a partner or a colleague mentions that the television is too loud. Tinnitus, a ringing or buzzing that persists after a shift, is a common warning sign, and it is often dismissed as ordinary tiredness.
This is why the usual site habit of waiting for a complaint does not work. The crew will not report a problem they have not noticed, and they will often say the noise is fine because it is the only noise they know. Exposure is cumulative across the working day and the working life, so the total is what matters rather than any single loud moment. The lesson for a builder is that the protection rule has to be set in advance, on the basis of the tasks, rather than reactively on the basis of how the crew feels at the end of the day.
Which tasks on a building site are loudest for the crew
Most of the loud work on a residential site comes from a small number of tools. Circular saws and mitre saws used for framing and cladding produce high noise levels, and the noise rises when the blade is worn or the material is dense. Angle grinders cutting steel, masonry or tile are often louder still, and their high-pitched component carries well across a site. Nail guns produce short, sharp impact noise, which is harmful even when each burst is brief, because the repetition adds up over a day.
Concrete and masonry cutting, jackhammers and plate compactors add to the picture on some jobs. Generators and compressors are often overlooked, because they run for long periods in the background, and a crew that stands near a running compressor for a whole day is exposed whether or not anyone is cutting. Map each of these tools to the tasks they are used for, and to the people who use them, before deciding anything else.
The crew member most at risk is often not the one doing the loudest task. A labourer who moves between the saw, the grinder and the nailer all day can receive more total exposure than the person who uses one tool for an hour. An apprentice who has been given the cutting for the whole project may be more exposed than anyone else on the crew. The assessment has to follow the person through the day, not just the tool.
Assessing the noise before you choose the protection
An assessment answers three questions: which tasks are loud, who does them, and for how long. It does not need specialist equipment for a first pass, but it does need honesty. A builder who asks the crew how long each task runs will get a fuller picture than one who assumes the noisy work is short. Where the noise is close to the level at which a formal assessment is required, a proper measurement by a qualified person is the reliable answer.
The method for the assessment, and the point at which formal measurement is needed, is set out in the work health and safety duties that apply to the business. The SafeWork NSW guidance on noise is the document to check for the method and the trigger points. A builder should not rely on a rule of thumb from a forum, or on a figure passed on by a supplier, when the answer is a legal duty. Write down the assessment, the date, the tasks and the people involved, and review it when the work changes.
The assessment also has to reflect the type of job. A renovation in a quiet street with a single saw is a different exposure from a subdivision with a nailing crew, a compressor and a grinder all running at once. Re-assess when the scope, the team or the tools change, not only at the start of the project.
Removing and isolating the noisy work first
Protection worn by the worker is the last line of defence, not the first. The better controls take the noise away from the person or make the task quieter at source. Where it is practical, move the cutting off the slab and into a workshop or a designated cutting area, or buy pre-cut and pre-drilled materials so that less cutting happens on site at all. Prefabricated wall frames, cut-to-length cladding and pre-fixed trusses are all ways of moving the loud work to a place where it can be controlled.
Where the work has to happen on site, choose quieter equipment and keep it in good order. A sharp blade cuts with less effort and less noise than a worn one, and a tool with a damaged guard or loose housing is usually louder. Battery tools are often quieter than their corded equivalents, though they still need checking against the task. Set up a cutting station away from the crew’s main work area, so that the people who are not cutting are not exposed to the noise the cutter makes.
Isolation and rotation complete the picture. Schedule the loudest work in blocks, and move people off the noisiest tasks before their exposure builds up over the day. A crew that rotates between cutting, carrying and fixing is exposed less than one where a single person cuts for the whole job. These are administrative controls, and they only work when the supervisor plans the day around them.
Controlling crew noise, in the order that works
- 1Identify the noisy tasksList each saw, grinder and nailer task, and who does it and for how long across the day.
- 2Remove or move the workPrefabricate, pre-cut or cut in a designated area away from the main crew.
- 3Use quieter tools and set-upsKeep blades sharp and guards fixed, and choose quieter tools where they suit the task.
- 4Limit the exposureRotate people off the noisiest tasks and schedule the loudest work in short blocks.
- 5Supply and fit protectionOffer protection that suits the task and check that each person can wear it correctly.
- 6Supervise and reviewThe supervisor sees it worn for the whole task, and the assessment is reviewed when the work changes.
Choosing protection that the crew will actually wear
When the earlier controls have been applied, the remaining exposure is what protection has to cover. The choice is between earmuffs and earplugs, and neither is better in every case. Earmuffs are easy to see and check at a glance. Earplugs can be more comfortable in heat and easier to wear under a hard hat, but they are only effective when they are fitted properly, and a plug that is pushed in badly does very little. The right choice depends on the task, the noise, the worker’s comfort and whether the protection can be fitted and worn all day.
Fit is the detail that most often fails. A set of earmuffs with a cracked seal, or a crew member who wears them around the neck and puts them on only when the supervisor appears, is not protected. The manufacturer’s instructions for fitting and care matter, and a builder should check that each person has the right protection for their own head and ears. Replace worn or damaged protection. Do not assume that combining two types is automatically better, because the fit of the combination needs considering, and the manufacturer’s guidance is the place to check it.
Comfort is a safety issue. A worker who finds the protection unbearable in the afternoon will take it off, and the afternoon is when the exposure builds. Ask the crew which options they can wear for a full day, and be willing to buy a second type for a different task. Protection that is worn is worth more than protection that is perfect on paper.
Supervision is the control that makes the rest work
Every other control depends on someone checking that it is being used. Written procedures, good tools and good protection all fail when the crew decides, for a few minutes, that the cutting will not take long. The supervisor’s job is to see the protection being worn for the whole of the noisy task, not to be satisfied that it was issued. That means being on site when the cutting is happening, and correcting the habit the first time it appears.
Supervision also means noticing change. A crew member who starts asking people to repeat themselves, who turns the radio up on the ute or who mentions a ringing in the ears should be taken seriously. Report it, check the task that caused it, and consider a hearing assessment. Early attention is the only point at which the damage can be stopped from getting worse, because hearing that has already gone does not come back.
Relying on the crew to say when it is too loud. Noise damage is gradual and painless, so the people exposed to it are the least likely to report it. Set the protection rule on the noisy task itself, and check that it is worn, rather than waiting for a complaint that only arrives after the damage is done.
A supervisor who also employs apprentices carries the duty to supervise their work, and the same applies to noise. The article on the duties that come with supervising apprentices sets out the wider obligations. The principle is the same here: the person who gives the instruction is responsible for making sure it is followed, and that includes the instruction to wear protection.
Before the crew starts a noisy task
- Each loud task listed, with the tools used and the people who use them
- Protection matched to the task, and offered in more than one type
- Each person fitted and shown how to wear the protection correctly
- Blades sharp and guards fixed on every saw and grinder before use
- Cutting moved to a designated area away from the main work
- Supervisor checks that protection is worn for the whole noisy task
- Any ringing, muffled hearing or raised voices reported and followed up
A worked example: the framing crew and the cutting bay
Consider a builder in the Hunter region who runs a crew of framers and a small group of carpenters on residential jobs. The business had issued earmuffs to everyone, and the foreman believed the noise was under control. The crew cut studs, plates and bracing on the slab, and a single labourer carried most of the material and ran the chop saw for much of the day. Nobody had asked how long each person spent near the saw, and the protection was mostly worn only when the foreman was looking.
When an apprentice reported a ringing in the ears at the end of a week, the builder took the report seriously. The builder walked each task with the foreman, noted which tools ran for how long and who was in range, and found that the chop saw was being used with a blunt blade and a loose guard. The first changes were practical. The blade was replaced, the guard was fixed, and the cutting moved to a bay at the end of the site, away from the framing team. The labourer was rotated off the saw, so the cutting was shared out in short blocks rather than being one person’s job all day.
The builder also arranged a hearing assessment for the apprentice and the labourer, so there was a reference point if anything changed later. The protection was reviewed, and the crew was given a choice of types so that earmuffs were not the only option. The foreman’s check became part of the daily job sheet. The site did not become quiet. It became controlled, and the crew stopped treating ear protection as something to take off when the boss walked away.
What the SafeWork NSW guidance and your own adviser should confirm
This article does not set out the thresholds that decide when a particular assessment, protection or health monitoring requirement applies. Those are set in the work health and safety duties that apply to the business and in the SafeWork NSW guidance on noise. Check that guidance before you write a noise plan, and check the current duties with a work health and safety adviser, because the detail matters for the decision you make.
Cutting and grinding masonry and concrete bring a second hazard alongside the noise, which is silica dust. The Safe Work Australia guidance on the duties for silica sets out what a business must do, and the controls for dust, such as wet cutting and extraction, often help with the noise question too. Where a task creates both hazards, treat them as one plan rather than two separate checklists.
The electrical side of power tools matters on a site as well. Leads, tools and the connection to a generator or a board should be checked as part of the day’s set-up. The article on electrical safety on construction sites covers the detail, and the Safe Work Australia guidance on electrical safety is the reference for it. A supervisor who checks the leads and the tools at the same time as the protection is building the habit that keeps the crew safe in every direction, not only for their hearing. The PointCPD guide to how NSW builder CPD works explains how safety learning of this kind fits into the licence requirement.
Questions builders ask
How do I know if the noise on my site is too loud?
If people have to raise their voices to be heard at arm’s length, or the noise lingers in the ears after the task stops, the exposure is likely significant. A proper assessment is the reliable answer, because exposure depends on the tool, the material, the length of the task and the surroundings. Check the SafeWork NSW noise guidance for the method the assessment must follow.
Are earmuffs better than earplugs?
Neither is better in every case. The right choice depends on the task, the noise, the comfort of the worker and whether the protection can be fitted and worn properly all day. Earmuffs are easier to check at a glance, while earplugs suit some tasks and crews better. Choose by fit and by whether the crew will wear it, not by brand.
Can I just tell the crew to wear ear protection when they are cutting?
A rule without supervision rarely holds, because protection tends to be worn while someone is watching and removed when they are not. Set the rule for the noisy task itself, and check that protection is worn for the whole of it. Make the supervisor responsible for that check, and record that it was done.
Does a builder need hearing tests for the crew?
Whether health monitoring is required depends on the level of exposure and the work health and safety duties that apply to the business. Ask a work health and safety adviser, or check the SafeWork NSW guidance. A baseline test is useful even where it is not required, because it gives a reference point if a change is reported later.
Does cutting dust matter as well as the noise?
Yes. Cutting masonry and concrete produces silica dust as well as noise, and the work health and safety duties for silica apply alongside the noise controls. Wet cutting and dust extraction are often practical controls for both hazards. The Safe Work Australia guidance on silica sets out the duties in full.
What should a site induction say about noise?
Name the loud tasks on the site, the protection required for each, and who checks that it is worn. Say where the cutting area is and who may use the noisy tools. An induction that names the tasks is far more useful to a new starter than a general warning that the site is noisy.
Sources
- Environmental Planning and Assessment (Development Certification and Fire Safety) Regulation 2021 · NSW Legislation
- Electrical safety · Safe Work Australia
Published 27 September 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.
