Stop work immediately, leave the area, keep everyone out, and report it. Do not try to clean it up. Those first sixty seconds matter more than anything that follows — most avoidable exposure happens because someone kept working, or tried to tidy the mess.
And the answer to the question everyone asks next is usually no: asbestos in good condition normally should not be removed. Removal disturbs fibres that were sitting harmlessly. Managing it in place is frequently the safer and legally correct choice.
The first five minutes
- Stop. Put the tool down mid-job. Do not finish the cut, the drill hole or the panel.
- Leave the area and stop others entering. Close the door, tape it off, put a sign up.
- Do not disturb it further — no poking, no lifting the edge to look, no taking a sample yourself.
- Do not clean up. No sweeping, no ordinary vacuum, no dry brushing, no compressed air. All of these throw fibres into the air. A domestic or workshop vacuum makes the situation dramatically worse.
- Report it to your supervisor, the site manager and the building’s duty holder straight away.
If material was disturbed while you were working on it, avoid spreading it further: keep contaminated clothing in the area rather than walking through the building in it, and follow whatever decontamination arrangements your employer has in place.
What not to do
| Don’t | Why |
|---|---|
| Sweep or vacuum | Fibres become airborne; standard vacuums exhaust them straight back into the room |
| Take a sample yourself | Sampling releases fibres and requires a competent, trained person |
| Break it up or bag it | Asbestos waste is hazardous waste with specific legal handling and disposal rules |
| Put it in a skip or general waste | Illegal, and it spreads the problem |
| Wash it down with water | Creates contaminated run-off and does not make it safe |
| “Just finish the job quickly” | The single most common cause of serious exposure |
| Seal it up and say nothing | The next person will not know it is there |
What happens next — the duty holder’s job
Once reported, responsibility sits with the duty holder for the premises under Regulation 4 of the Control of Asbestos Regulations 2012. They should:
- Check the asbestos register to see whether the material was already recorded
- Arrange sampling and analysis by a competent person if its status is unknown
- Assess the condition — is it damaged, friable, likely to be disturbed again?
- Decide: manage or remove
- Update the register and management plan
- Inform everyone who might work in that area
See the duty to manage asbestos for what that plan has to contain.
Why removal is usually the wrong first instinct
Undamaged asbestos, sealed and left alone, releases very few fibres. Ripping it out guarantees disturbance, costs a great deal, and can leave a building more contaminated than before if done badly.
HSE guidance points towards leaving ACMs in place where they are in good condition and unlikely to be disturbed — labelled, recorded, and inspected periodically.
Removal becomes the right answer when:
- The material is already badly damaged or deteriorating
- It is in a location where it will inevitably be disturbed
- Planned refurbishment or demolition will affect it
- It cannot be effectively sealed or protected
That decision belongs to the duty holder acting on competent advice — not to whoever found it.
Who can legally do the work?
The regulations split asbestos work into three categories, and the material decides which applies:
- Licensed work — the highest-risk materials: sprayed coatings, lagging, loose fill, and most work on asbestos insulating board. Only an HSE-licensed contractor may do this.
- Notifiable non-licensed work (NNLW) — must be notified to the relevant enforcing authority, with health records and medical surveillance required.
- Non-licensed work — lower-risk, short-duration work on firmly bound materials such as asbestos cement, still requiring proper training and controls.
No awareness course qualifies anyone to carry out any of these. Awareness training exists so you recognise asbestos and stop — that is its entire purpose. See Category A vs Category B training.
If you think you have been exposed
A single brief exposure is not the same as years of unprotected work, and it is not a reason to panic. But it must be recorded properly, because it may matter decades later.
- Tell your employer immediately. Do not let it go unrecorded because it felt minor.
- Ask for it to be written down — date, location, material, duration, who else was present, what controls were in place.
- Your employer must keep records where exposure occurred, and arrange health surveillance where the regulations require it.
- Seek medical advice and make sure your GP has it on record.
- Keep your own copy. Employers change, records get lost, and asbestos-related disease can take 20 to 40 years to appear. Your own note may be the only evidence that survives.
Uncontrolled exposure may also be reportable under RIDDOR — that is the employer’s duty, and another reason to report rather than shrug it off.
If you are a homeowner
The duty to manage does not apply to private homes, but the physical risk does. Do not attempt DIY removal of anything you suspect contains asbestos. Contact a specialist for sampling and advice, and check with your local council about disposal — asbestos is hazardous waste and cannot go in household bins or ordinary skips.
Further reading
Know what to stop for
Our Asbestos Awareness (Category A) course covers recognising ACMs, what to do if you disturb one, and the emergency procedure — the training expected under Regulation 10 for anyone whose work could disturb asbestos.
Related reading: Where is asbestos found in UK buildings? · What is asbestos awareness training?
£9 per course. CPD accredited, 100 % online, verifiable e-certificate on completion. Pay for 2, get 3 — any 3 courses for £18.
Please note: this is a CPD-accredited Category A awareness course and general information, not legal or medical advice. It is awareness training only — it does not license, qualify or permit anyone to carry out licensed or notifiable non-licensed asbestos work, and it is not an Ofqual-regulated qualification. If you believe you have been exposed, speak to your employer and a medical professional.