DSEAR Risk Assessments
Home > DSEAR Risk Assessments

DSEAR Risk Assessments

Understanding and Managing Explosive Atmospheres

Workplaces that handle flammable liquids, gases, vapours or combustible dusts must comply with the Dangerous Substances and Explosive Atmospheres Regulations (DSEAR).

At ROAR, we make DSEAR compliance practical, not painful.

We undertake DSEAR risk assessments across a wide range of sectors - from workshops, laboratories and maintenance depots to fuel storage, paint spraying, food production and waste management facilities.

A person in orange safety gear writes on a clipboard beside yellow chemical barrels marked with hazard symbols.

Our assessments identify:

Hazardous substances and potential ignition sources.


Formation and extent of explosive atmospheres (zoning).


Engineering controls and ventilation measures.



Equipment suitability (ATEX/Ex rated).


Emergency arrangements and staff awareness.



Actions needed to meet legal and best practice standards (BS EN 60079, HSG 103, HSG 140).

We produce clear, visual reports - often with hazard-zone drawings and prioritised action plans - to help you understand your risks and demonstrate compliance to regulators, insurers and auditors.

Because DSEAR is as much about culture as chemistry, we also provide linked training and ongoing consultancy to embed safe working practices long after the assessment is complete.

Get in touch

Ask us today for a quotation or to discuss your process, site or facility in confidence.

Logo featuring a house and flame icon with the words FIRE AWARE: The Moral Identity of Fire Safety.
Fire Protection Association Individual Member card displaying member number A-154312 and renewal date of 28 November 2026.
Logo for the Institution of Fire Engineers featuring a red flame symbol and text on a light background.
The IFSM logo features a flame icon alongside the words The Institute of Fire Safety Managers Member.
The Institute of Industrial Accident Investigators logo featuring large IIAI initials on the left.
An orange phoenix logo appears below the word RIFA, set against a black background with white and orange stripes running beneath it.