• Worker suffered life-changing injuries after falling through fragile rooflight.
• HSE investigation found no measures in place to prevent or mitigate a fall.
• Incident highlights ongoing risks of working at height in construction.

Daniel Jenner, trading as Jenner Roofing and Building Services, has received an eight-month suspended sentence after a worker fell four metres through a rooflight to the concrete floor below.

The incident occurred on 12 August 2023, when a worker was carrying out work on behalf of Jenner Roofing and Building Services, at an industrial estate in High Wycombe, working alone to clean and repair gutters and drains.

While walking next to the unguarded edges of the roof, he approached a fragile roof covering above a service road. He stepped onto a rooflight, fell through it, and sustained serious, life-changing injuries including a fractured skull and cheekbone, a fractured leg and a broken wrist.

An investigation by the Health and Safety Executive (HSE) found that Daniel Jenner had failed to implement any work-at-height measures to prevent workers from falling from the unguarded edges of the roof or through the fragile roof itself. There were no measures in place to mitigate for either the distance or the impact of a fall.

Working at height remains one of the leading causes of workplace injury and death. HSE has detailed guidance available on working safely at height and managing construction activities that can be found on our website.

Daniel Jenner, trading as Jenner Roofing and Building Services, pleaded guilty to breaching Regulation 6(3) of the Work at Height Regulations 2005. He received an eight-month suspended sentence, was ordered to complete 280 hours of unpaid work and to pay £500 in costs at a hearing at High Wycombe Magistrates’ Court on Wednesday 21 January 2026.

HSE Lead Inspector, Sophie Neale, said:

“This was a tragic but avoidable incident, where an individual suffered life-changing injuries due to working at height. Had suitable control measures been implemented, such as fall prevention or fall mitigation measures, this incident would not have occurred.

“This prosecution highlights ongoing safety failures in the construction industry, where working at height remains one of the leading causes of workplace injury and death.”

This HSE prosecution was brought by HSE enforcement lawyer, Gemma Zakrzewski and paralegal officer, Helen Hugo.

Further information:

1. The Health and Safety Executive (HSE) is Britain’s national regulator for workplace health and safety. We are dedicated to protecting people and places, and helping everyone lead safer and healthier lives.
2. More information about the legislation referred to in this case is available.
3. Further details on the latest HSE news releases is available.
4. Relevant guidance can be found here: Work at height – HSE
5. HSE does not pass sentences, set guidelines or collect any fines imposed. Relevant sentencing guidelines must be followed unless the court is satisfied that it would be contrary to the interests of justice to do so.  The sentencing guidelines for health and safety offences can be found here.

• 18-year-old was still learning how to operate machinery when incident occurred
• Harry now has to live with permanent scarring and a loss of feeling on the side of his chest.
• HSE guidance on preventing access to dangerous parts of machinery is available.

A manufacturing company in Newbury has been fined £187,600 after the shirt of an apprentice got caught in machinery.

Harry Pullen, who was 18 years old at the time, was pulled into a radial-arm drill resulting in three broken ribs and needing skin grafts.

He had been working as a machinist for Power and Energy International, manufacturing industrial valves and filters, for less than a year when the incident occurred on 10 July 2023.

The apprentice was still learning how to operate the different machines involved in manufacturing. He was left with a large piece of skin removed from his chest, hospitalised for five days and unable to work for six months.

An investigation by the Health and Safety Executive (HSE) found that Power and Energy International had failed to take appropriate measures to ensure the safety of their employees. The company’s radial-arm drills did not have adequate guarding. Machine operators, including Harry, had not been properly trained on using the safety features. The company was also found to have made modifications to the radial-arm drill which increased the risk of operators getting caught and pulled into the machine.

HSE guidance states employers must properly assess risks and take effective measures to prevent access to dangerous parts of machinery. This is normally achieved with fixed or adjustable guards but where this is not practicable other protective devices may be needed that stop the movement of dangerous parts. Employers must also ensure that they provide their employees with the necessary level of information, instruction, training, and supervision to enable them to work safety with the equipment they use. Guidance on health and safety in engineering workshops can be found on the HSE website: Health and safety in engineering workshops – HSE

Power and Energy International Ltd of Stanley Street, Salford, pleaded guilty to breaching Section 2(1) of the Health and Safety at Work etc. Act 1974. The company was fined £187,600 and was ordered to pay £7,464 in costs at a hearing at High Wycombe Magistrates Court on 8 December 2025.

After the hearing HSE inspector, Peter Crees, said: “The fine imposed on Power and Energy International underlines the importance of having effective controls to protect workers who operate radial-arm drills and other potentially dangerous machines.

“Harry’s injuries and the suffering it caused both him, and his family, could have easily been avoided.”

Harry now has to live with permanent scarring and a loss of feeling on the side of his chest. He said: “I would not go back on a radial arm drill… it’s not something I ever want to do again.”

This HSE prosecution was brought by HSE enforcement lawyer Iain Jordan and paralegal officer Melissa Wardle.

Further information:

1. The Health and Safety Executive (HSE) is Britain’s national regulator for workplace health and safety. We are dedicated to protecting people and places and helping everyone lead safer and healthier lives.
2. More about the legislation referred to in this case is available.
3. Further details on the latest HSE news releases is available.
4. Guidance on the use of work equipment is available.
5. HSE does not pass sentences, set guidelines or collect any fines imposed. Relevant sentencing guidelines must be followed unless the court is satisfied that it would be contrary to the interests of justice to do so.  The sentencing guidelines for health and safety offences can be found here.