Commercial Boiler Engineer

London and the M25 corridor

Summary

With over 40 years of industry excellence, Acorn is a market leader in engineering and compliance services, delivering expert solutions across hundreds of sites in London and the Southeast. From mechanical and electrical works to specialist water treatment and HVAC services, we pride ourselves on providing high-quality, in-house solutions backed by dedicated, knowledgeable teams.

We’re looking for an experienced Boiler Engineer to join our growing team and support a range of planned and reactive maintenance tasks across our client portfolio.

Package & Benefits

Location: London and the M25 Corridor

Salary: up to £55,000 per year

Hours: 41.5

Company Benefits

  • Company Van + Fuel Card

  • Pension scheme

  • Company Events

  • Wellbeing Benefits – 24 hours turnaround GP appointment for the whole family

  • 25 days holiday (not including bank holidays)

  • Cycle to Work Scheme

Responsibilities

Carry out planned preventative maintenance (PPM), servicing, and repair work on a variety of contracts.

  • Perform boiler and combustion servicing and repair, including:

    Low & high-pressure boilers, Steam & power boilers and Hot water heating systems

  • Replace faulty components (valves, filters, gauges, etc.) and clean boiler systems periodically.

  • Respond to emergency call-outs and participate in the out-of-hours rota.

  • Liaise with clients, suppliers, and internal teams to ensure seamless service delivery.

  • Submit accurate and detailed reports for all work completed.

  • Always work safely, reporting any risks or hazards immediately.

Knowledge

  • Strong knowledge of combustion systems and HVAC plant (A/C, boilers, controls, etc.)

  • Understanding of Legionella regulations and general Health & Safety protocols

  • Confident with Word, Excel, and Outlook

  • Must have experience with gas boosters testing

    and purging TPCP1

    testing and purging TPCP1A with

    minimum of 5 years’ experience

Qualifications

  • CCN1

  • CEN1 (Essential)

  • CODNCO1

  • OFTEC (desirable)

Skills and Personal qualities

  • You have a valid UK driving licence and can travel to different sites.

  • Clear communicator with good time management.

  • Comfortable using Word, Excel, and Outlook.

  • Organised and able to build strong relationships with clients and colleagues.

  • Self-motivated with a high standard of work.

Apply now

Need more info?

Dale will be happy to help!

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