Unregistered gas engineer sentenced after multiple breaches

A self-employed gas engineer has been sentenced after carrying out illegal gas work and breaching a HSE Prohibition Notice.


Bournemouth Crown Court heard how Dean Coslett trading as Dorset Boiler Company, undertook gas work at a number of properties in Dorset between December 2017 and April 2019 whilst he was not registered with the Gas Safe Register. Mr Coslett used false Gas Safe Register registration numbers on paperwork he issued and left gas appliances incorrectly installed.


An investigation by the Health and Safety Executive (HSE) found that Dean Coslett had not installed a number of gas appliances to the correct safety standards. On 12 September 2018, HSE served Dean Coslett with a Prohibition Notice prohibiting him from undertaking gas work whilst not registered with the Gas Safe Register. However, he breached this Prohibition Notice by continuing to undertake unregistered gas work.


Dean Coslett of Sevenoaks Drive, Bournemouth pleaded guilty to breaching Regulation 3(3) and 3(7) of the Gas Safety (installation and Use) Regulations 1998 and Section 33(1)(g) of the Health and Safety at Work Act 1974. He was sentenced to a three-year community supervision order, ordered to undertake 200 hours unpaid work and undertake 30 days of offender rehabilitation work. He was also ordered to pay £900 compensation to a number of homeowners for the substandard work he undertook at their homes.


Speaking after the hearing, HSE inspector Simon Jones said: “Dean Coslett undertook gas work, which he knew he was not registered to do and flagrantly breached an order prohibiting him from undertaking gas work whilst he was not registered. All gas work must be done by registered Gas Safe engineers to ensure the highest standards are met to prevent injury and loss of life.”


Notes to Editors:

1. The Health and Safety Executive (HSE) is Britain’s national regulator for workplace health and safety. We prevent work-related death, injury and ill health through regulatory actions that range from influencing behaviours across whole industry sectors through to targeted interventions on individual businesses. These activities are supported by globally recognised scientific expertise. www.hse.gov.uk

2. More about the legislation referred to in this case can be found at:

3. HSE news releases are available at http://press.hse.gov.uk