By Sarah Donnelly · Published 18 October 2026 · 3 min read
The Health and Safety Executive has served its first Prohibition Notices as part of a nationwide inspection campaign targeting deadly silica dust exposure. Four companies have been ordered to halt work immediately following site visits from inspectors enforcing new guidance on engineered stone. The regulator confirmed that the enforcement action was taken to protect workers from irreversible respiratory damage.
Background
Respirable crystalline silica is a significant health hazard in the construction sector, second only to asbestos in occupational respiratory risks. The enforcement action follows recent HSE guidance instructing the industry to stop dry-cutting engineered stone entirely. The regulator has repeatedly warned that inhaling silica dust can lead to silicosis, a serious and irreversible lung disease. This targeted campaign aims to assess compliance with the Control of Substances Hazardous to Health Regulations across manufacturing and construction sites.
Industry implications
The immediate cessation of work at four sites demonstrates the severe financial and operational risks of non-compliance. Prohibition Notices halt production instantly, leading to project delays, wasted materials, and potential contractual penalties. Companies found breaching the regulations also face the prospect of substantial fines and reputational damage. The HSE is clearly shifting from an advisory stance to active, zero-tolerance enforcement regarding dry-cutting practices. This will force subcontractors to invest heavily in wet-cutting equipment and advanced extraction systems.
What contractors should do now
Principal contractors must urgently audit their sites to ensure no dry-cutting of engineered stone is taking place under any circumstances. Site managers should verify that local exhaust ventilation systems and water suppression methods are fully operational and correctly used by all operatives. Respiratory protective equipment must be face-fit tested, properly maintained, and worn appropriately. Furthermore, health surveillance programmes should be reviewed immediately to ensure they meet current regulatory standards for workers exposed to silica dust.
Analysis
This enforcement action marks a significant escalation in the HSE strategy against occupational lung disease. By issuing Prohibition Notices rather than standard Improvement Notices, inspectors are signalling that dry-cutting engineered stone presents an immediate risk of serious personal injury. This aligns with a broader regulatory trend prioritising long-term occupational health alongside immediate physical safety on construction sites. The swift action against four separate companies indicates a coordinated, intelligence-led approach by the regulator.
What happens next
The nationwide inspection campaign is ongoing, and contractors should expect unannounced visits from HSE inspectors over the coming months. The regulator is likely to publish the names of the penalised companies on its public register of enforcement notices once the statutory appeals period concludes. Industry bodies are urging members to review their dust control measures immediately to avoid similar enforcement action. Further guidance on acceptable wet-cutting parameters is expected from the HSE later this year.
Sources
- HSE Media Centre — Health and Safety Executive
