The HSE Is Coming For Your Site: What The HSE Engineered Stone Crackdown Means For Every UK Construction SME

The HSE Is Coming For Your Site: What The HSE Engineered Stone Crackdown Means For Every UK Construction SME

The HSE served its first Prohibition Notices on engineered stone this month. But if you think this only affects stone workers, you're missing the bigger picture about how HSE enforcement is changing.

On 25 June 2026, the Health and Safety Executive announced that four companies had been ordered to stop work with engineered stone immediately. This was the first enforcement action under a 1,000-plus inspection programme that runs through 2027. Each firm received a Prohibition Notice for failing to control respirable crystalline silica (RCS) dust. Their sites went dark on the spot.

The immediate story is about engineered stone. The bigger story is about enforcement itself. The HSE has signalled that it'll use its strongest powers early, publicly, and without warning. For any construction SME that relies on subcontractors, manages multiple sites, or keeps compliance documentation in a folder on a shelf, this changes the risk calculation.

Table of Contents

• The Headline
• Why It Matters for Construction Decision-Makers
• The Details
• What This Changes
• Our Take
• Frequently Asked Questions
• What to Do Next

The Headline

The HSE has started shutting down construction businesses on the spot for silica dust failures, and it will do more than 1,000 inspections before this campaign is over. The first four firms were ordered to stop work immediately, with Prohibition Notices that stay on the public register for five years.

The context

This didn't come from nowhere. The HSE published its first-ever COSHH guidance sheet specifically for engineered stone on 11 May 2026, after a two-year research programme. The guidance made it clear that dry cutting is unacceptable and that water suppression is now the legal standard. It set out four requirements: switch to low-silica stone, use on-tool water suppression, provide minimum FFP3 respiratory protection, and carry out regular health surveillance.

What changed on 25 June is that those words became teeth. The HSE served Prohibition Notices as of the end of May (published five weeks later to allow for appeals and quality assurance). The notices covered failures in dust control, health surveillance, respiratory protective equipment (RPE), local exhaust ventilation, and machinery guarding. These aren't obscure requirements. They're the basics of COSHH compliance that every construction firm should already have in place.

The human cost driving this is stark. Confirmed UK silicosis cases linked to engineered stone have jumped from 8 to 45 in just over a year, according to Dr Johanna Feary, a leading occupational lung specialist at Royal Brompton Hospital. The average age of affected workers is 31. Stonemasons as young as 23 are now requiring lung transplants. Two young workers have died: Wassam al-Jundi (28) in May 2024 and Marek Marzec (48) in November 2024.

Who it affects

Directly: any business that fabricates, installs, or adjusts engineered stone. Kitchen and bathroom worktop fitters, stonemasons, fabrication workshops, and any main contractor that subcontracts stone work.

Indirectly: every construction SME. Because the HSE's enforcement posture has changed. The Federation of Master Builders warned on 3 June that inspectors have instructions to issue instant Prohibition Notices, not warnings. Brian Berry, FMB Chief Executive, put it bluntly: "If you are caught cutting engineered stone dry, your site could be shut down immediately."

Why It Matters for Construction Decision-Makers

This news hits every dimension of running a construction SME. The table below maps the impact.

The Details

What happened

• 17 March 2026: Silica Dust (Exposure) Bill introduced by Liberal Democrat MP Liz Jarvis.
• 11 May 2026: HSE publishes landmark COSHH guidance for engineered stone, effectively banning dry cutting.
• 2 June 2026: Westminster Hall debate on silica dust exposure, MPs from multiple parties call for stronger action.
• 3 June 2026: FMB warns that any builder caught dry cutting faces instant site shutdown.
• 25 June 2026: HSE announces first Prohibition Notices served on four engineered stone businesses. Notices served as of end of May 2026.

Key data points

• Silicosis cases jumped from 8 to 45 confirmed in just over a year (Dr Johanna Feary, Royal Brompton Hospital).
• Average age of affected workers: 31. Youngest patient: 23, referred for lung transplant.
• Dry cutting produces 5 to 10 times more RCS dust than wet methods (HSE research).
• Engineered stone can contain up to 95% crystalline silica, compared to 5-20% for many natural stones.
• An estimated 600,000 UK workers are exposed to RCS each year. HSE describes silica as the second biggest occupational risk after asbestos.
• Construction remains the UK's deadliest industry with 35 worker fatalities in 2024/25.
• 72% of construction SMEs are affected by skilled labour shortages (FMB/CIOB State of Trade Survey H2 2025), adding pressure on the staff time needed to maintain compliance documentation.

What was not said

The HSE's press release didn't name the four companies. They're on the public register, but the regulator chose not to name them in the announcement. That may change in future waves.

More significantly, the government has explicitly rejected an outright ban on engineered stone, unlike Australia which banned manufacture, supply, and installation from July 2024. The Department for Work and Pensions argues that the risk lies in how the material is processed, not in the material itself. But the Silica Dust (Exposure) Bill proposes exactly that prohibition on dry-cutting high-silica stone. The political pressure is building.

Official response

Harvey Wild, Head of Operations, HSE (25 June 2026):

"We have stopped dangerous work with engineered stone in four workplaces due to serious failures in providing the correct controls. Silicosis is incurable, but it is entirely preventable. No worker should lose their life to a lung disease caused by their job."

Mike Calcutt, Deputy Director, HSE Engagement and Policy Division (11 May 2026):

"To every employer in this sector: the guidance is now published, the expectations are clear, and our inspectors are coming. Those who are cutting corners are not just putting their workers at risk, they are undercutting the businesses doing things properly. We will create a level playing field."

What This Changes

Short-term (next 30 days)

Check your COSHH assessments. If you or your subcontractors work with engineered stone, your COSHH assessments must reference the new HSE guidance and demonstrate compliance with the four requirements: material substitution, water suppression, RPE, and health surveillance. Generic entries won't pass inspection. A compliant COSHH assessment should name engineered stone (or the specific material), list respirable crystalline silica as the hazardous substance, reference HSE guidance ST3a, and state the specific control measures in place (water suppression, FFP3 RPE, LEV if applicable). If your assessment says 'dust' without naming silica or engineered stone, it needs updating.

Audit your subcontractors. If you're a main contractor, you have duties under CDM 2015 to ensure subcontractors are managing their risks. A Prohibition Notice on a subcontractor's stone cutting operation is your problem too. Ask for evidence: written COSHH assessments, RPE face-fit test records, and health surveillance logs.

Stop dry cutting. Today. Not next week, not when the current job finishes. The HSE has made it clear that dry cutting is unacceptable. If an inspector visits and finds dry cutting, your site can be shut down immediately.

Medium-term (next 6 months)

Invest in water suppression equipment. On-tool water suppression is now the legal standard for cutting engineered stone. If your teams are still using angle grinders without water attachments, budget for the change now. On-tool water suppression attachments for angle grinders cost approximately £50–£150 per unit. Dust extraction units with water spray range from £500–£2,000 depending on capacity. For a small fabrication team of 3–5 workers, expect a one-off equipment cost of roughly £1,000–£3,000 (based on UK tool hire and supplier pricing surveyed June 2026).

Set up health surveillance. Regular lung function testing for workers exposed to RCS is now a documented requirement. This means arranging occupational health provision, keeping records, and acting on results. Health surveillance does not need to be expensive: many SMEs start with a local occupational health provider offering group-rate lung function testing from £40–£60 per worker. If budget is tight, prioritise RPE face-fit testing and water suppression equipment first, then phase in health surveillance within six months.

Review your materials. Lower-silica engineered stone is available and HSE research has confirmed it's a viable alternative. Some manufacturers are already shifting to zero-silica products (Cosentino launched a zero-silica countertop in 2026). Switching materials reduces your compliance burden and your risk exposure.

Long-term (12-18 months)

Prepare for a potential ban. Australia moved from guidance to a full ban within two to three years of cases emerging. The UK government has rejected a ban for now, but the Silica Dust (Exposure) Bill and cross-party pressure suggest the regulatory floor will keep rising. Firms that switch to safer alternatives and invest in proper controls now will avoid disruption later.

Documentation will be the deciding factor. The four businesses that received Prohibition Notices were shut down not because the HSE caught them in the act of dry cutting, but because they couldn't demonstrate they had control measures in place. The difference between a warning and a shutdown is often paperwork. RAMS, COSHH assessments, training records, health surveillance logs. If you can't produce them when an inspector arrives, you're exposed.

Our Take

Here's what we think this actually means for construction SMEs.

The HSE has picked engineered stone as its flagship enforcement target, but the operating model is the real story. Prohibition Notices, instant shutdowns, no grace period, and a sustained inspection programme. That approach won't stay confined to stone fabrication.

What we agree with. The human cost justifies the action. Young workers are dying from a preventable disease. The industry has known about silica dust risks for decades. The HSE is right to escalate enforcement, and the FMB is right to warn its members the rules have changed.

What we're watching. The gap between government policy and on-the-ground enforcement. The DWP has rejected a ban, but HSE inspectors are effectively creating one through enforcement. That tension will resolve one way or another. Either the government formalises the ban, or the HSE runs out of inspection capacity and the crackdown fades. We think the former is more likely, particularly with the Silica Dust Bill gaining cross-party support.

What we're sceptical about. The idea that this only affects stone workers. It doesn't. Any site where a subcontractor cuts stone is exposed. Any main contractor whose supply chain includes stone installation is exposed. The HSE's 1,000-plus inspection programme will touch every part of the construction supply chain before it finishes.

What we'd do if we were in your shoes. Stop treating compliance documentation as overhead. Treat it as an operational asset. The firms that survive this enforcement wave will be the ones that can open a folder and prove compliance in five minutes. The ones that can't will be the next Prohibition Notice.

Frequently Asked Questions

Do the HSE's Prohibition Notices only affect engineered stone fabricators?

No. While the immediate enforcement targets businesses that fabricate, install, or adjust engineered stone, the broader implication reaches every construction SME. The HSE's 1,000-plus inspection programme will touch every part of the construction supply chain. Principal contractors have duties under CDM 2015 to manage risks from subcontractors' work, and if a subcontractor on your site receives a Prohibition Notice, your programme gets delayed and your client sees you as the responsible party.

What should I do if I subcontract stone work?

If you are a main contractor, you have duties under CDM 2015 to ensure subcontractors are managing their risks. Ask for evidence: written COSHH assessments, RPE face-fit test records, and health surveillance logs. A Prohibition Notice on a subcontractor's stone cutting operation is your problem too, and the HSE has made it clear that principal contractors cannot subcontract away their responsibilities.

How much does compliance equipment cost?

On-tool water suppression attachments for angle grinders cost approximately £50-£150 per unit. Dust extraction units with water spray range from £500-£2,000 depending on capacity. For a small fabrication team of 3-5 workers, expect a one-off equipment cost of roughly £1,000-£3,000 (based on UK tool hire and supplier pricing surveyed June 2026). Health surveillance through a local occupational health provider can cost from £40-£60 per worker, making it an accessible starting point for most SMEs.

Is the UK going to ban engineered stone like Australia?

The government has explicitly rejected an outright ban on engineered stone, unlike Australia which banned manufacture, supply, and installation from July 2024. However, the Silica Dust (Exposure) Bill is progressing through Parliament, and cross-party political pressure is building. Australia moved from guidance to a full ban within two to three years of cases emerging, and the HSE's enforcement approach is effectively creating a de facto ban through prohibition notices.

What to Do Next

Don't panic. Don't ignore it. Here's what to do this week.

• Audit your COSHH assessments today. If you work with engineered stone, your assessments must specifically address the new HSE guidance. If you subcontract stone work, request copies of their assessments. If they can't produce them, that's a red flag - if your assessment does not mention engineered stone, RCS, or HSE guidance ST3a by name, it will not pass inspection.
• Check your RAMS cover silica dust. Your risk assessments and method statements should explicitly reference RCS exposure, control measures, RPE requirements, and health surveillance arrangements. If silica dust isn't mentioned, update them - if your RAMS refer to 'dust' without naming silica or RCS, an inspector will treat them as inadequate.
• Verify RPE compliance. FFP3 masks are the minimum standard. Face-fit testing is required for tight-fitting masks. If your workers are wearing dust masks that haven't been fit-tested, you're non-compliant - if any worker is wearing a dust mask that has not been face-fit tested in the last 12 months, your RPE programme is non-compliant.
• Look at your material supply chain. Ask your supplier: 'What is the crystalline silica content of this product as a percentage?' If it is above 40% (many engineered stones are 70-95% - HSE COSHH guidance ST3a), ask about lower-silica alternatives. HSE research has confirmed that low-silica alternatives provide equivalent quality and appearance. If you can switch to lower-silica or zero-silica alternatives, do it. It reduces your compliance burden and your legal risk - if your supplier cannot tell you the silica content of their material, that is a compliance risk in itself.
• Document everything. The difference between a Prohibition Notice and an improvement notice is often whether you can prove you had controls in place. Keep written records of training, equipment maintenance, health surveillance, and COSHH reviews - if an inspector asks for a record and you cannot produce it within the visit, the presumption will be that the control was not in place.

If your COSHH assessments, RAMS, and health surveillance logs live in different site offices or spreadsheets, pulling them together under time pressure is exactly the situation that turns a warning into a Prohibition Notice.

Need help getting your compliance documentation in order? If your RAMS, COSHH assessments, or health surveillance records are scattered across spreadsheets, paper folders, or different site offices, you're not alone. Most SMEs are in the same position. But the firms that sort this out now will be the ones still operating when the next wave of inspections arrives. Get in touch with Rayson.Dev for a no-obligation chat about how we can help you get your compliance data organised and accessible.