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DSEAR Risk Assessment

Protecting people, property, and productivity.

Does DSEAR apply to me?

If your workplace handles flammable gases, liquids, vapours, or dusts, the Dangerous Substances and Explosive Atmospheres Regulations (DSEAR) apply to you. A proper risk assessment isn’t just a legal requirement — it’s a crucial part of keeping your team safe and your business running smoothly.

At York Green, we help you make sense of DSEAR without the jargon or the guesswork. Our assessments give you a clear understanding of the risks on site, and practical steps to manage them.

Safe handling and use of dangerous substances

What is DSEAR?

DSEAR is the law that requires employers to assess and control risks from substances that could ignite or explode. It covers:

  • Flammable liquids like solvents, fuels, and paints

  • Gases such as LPG, hydrogen, or natural gas

  • Combustible dusts from wood, flour, sugar, or plastics

  • Pressurised gases and corrosive substances that can cause harm in the event of a leak or failure

Whether you're running a small workshop or a large manufacturing plant, DSEAR is there to prevent fires, explosions, and chemical incidents before they happen.

What’s included in a DSEAR Risk Assessment?

Our qualified assessors will:

  • Identify hazardous substances and potential explosive atmospheres

  • Review your processes, storage, ventilation, and ignition sources

  • Classify zones where explosive atmospheres may occur

  • Recommend control measures to reduce risk

  • Check whether your equipment meets ATEX requirements

  • Provide a clear, usable report with prioritised actions

We’ll walk you through the findings and support you in taking the next steps. You’ll come away with the confidence that your team and your business is protected.

Forklift Hydrogen Explosive Atmosphere

Who needs a DSEAR Assessment?

You likely need one if you:

  • Store or use flammable substances

    If your business handles fuels, solvents, alcohols, or other flammables, DSEAR applies. A risk assessment helps identify ignition risks and keep your team safe.

  • Handle combustible dusts in any process

    If your process creates dust from wood, flour, sugar, plastics or similar materials, there's a risk of explosion. DSEAR assessments help you manage those hazards before they build up.

  • Operate spray booths, fuel storage, or solvent cleaning

    Spray booths, fuel tanks, and solvent-based cleaning all involve flammable substances and vapours. DSEAR ensures the right controls are in place to prevent fires or explosions.

  • Have compressed gases or reactive chemicals on site

    Compressed gases and reactive chemicals can escalate quickly if something goes wrong. A DSEAR assessment helps you understand the risks and keep storage and handling safe.

  • Need to show evidence of compliance to insurers, clients, or the HSE

    Whether it’s your insurer, a client audit, or an HSE visit, you’ll need clear proof of risk control. A DSEAR assessment provides the documented compliance they expect.

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    Not sure if it applies to you?

    We’re happy to talk it through and give honest, practical advice.

Why choose York Green?

We know DSEAR can feel complex. Our job is to make it simple.

With years of experience in high-risk environments, we understand the pressures you’re under — from keeping production on track to meeting legal duties and budget constraints. We offer straight-talking, solution-focused assessments that fit the real world.

  • Fully qualified, experienced assessors

  • No-fuss reports and clear action plans

  • UK-wide service

  • Practical, actionable solutions

  • Competitive pricing with no hidden fees