Building Services Electrical Engineer

Acorn Limited; Greater London; Hybrid; GBP 26,000 - 44,000; Full time

Benefits offered by this job

Company Van and fuel card

25 days holiday (not including bank)

Wellbeing Benefits – GP appointment

Job summary

Acorn Limited is seeking a Mobile Electrical Engineer to install, test and maintain electrical systems across client sites in London and surrounding areas. The role covers commercial environments with a focus on timely response and high safety standards.

You will perform EICRs, lighting tests, fault finding and certification while meeting NIC/EIC requirements and coordinating with clients and internal teams. A valid driving licence and UK residency are required.

Qualifications

• Strong knowledge of commercial electrical installations.
• Experience testing and certifying electrical systems.
• Ability to fault-find and rectify electrical issues.
• Experience with emergency lighting and fire alarm systems.
• Knowledge of DALI lighting control systems.
• Experience with BMS control wiring and fault finding.

Responsibilities

• Carry out electrical installation works within commercial premises.
• Complete Electrical Installation Condition Reports (EICRs).
• Carry out periodic emergency lighting inspections and testing.
• Fault diagnosis and rectification on electrical systems.
• Testing and certification of electrical installations and minor works in line with BS7671.
• Work in accordance with NIC/EIC approved contractor requirements.
• Communicate effectively with clients, suppliers and internal teams.
• Maintain site logs, diaries, task sheets and photographic reports.
• Organise daily workload efficiently and work proactively.

Skills

Commercial electrical installations

Testing and certifying

Fault-finding & rectification

Emergency lighting & fire alarms

DALI lighting control

BMS control wiring

Education

City & Guilds 2391/2394/2395 or equivalent

18th Edition Wiring Regulations

Completed electrical apprenticeship

IPAF & PASMA (desirable)

Job description

At Acorn, people are at the heart of everything we do. With over 40 years’ experience delivering market‑leading engineering and compliance services across London and the South East, we have built a reputation based on trust, technical excellence, and long‑term partnerships with our clients.

We are seeking a knowledgeable and proactive Mobile Electrical Engineer to join our established electrical services team, covering client sites across our London sites and the surrounding urban areas

This is a mobile role involving electrical installation works, testing, inspection and reactive maintenance within commercial environments. Due to the operational requirements of the business and response times for client sites across South and South East London

Acorn promotes a professional, inclusive, and collaborative working environment where engineers are trusted and supported. You will be backed by a dedicated internal helpdesk, administration team, and experienced contract managers who understand the realities of working on site and are committed to helping you succeed.

Location: South and South East London

Salary: up to £44000 depending on experience plus overtime and callout

Hours: 41.25 hours a week

Company Benefits

• Company Events
• Wellbeing Benefits – 24 hours turnaround GP appointment for the whole family
• 25 days holiday (not including bank holidays)
• Company Van and fuel card

Role Overview & Responsibilities

• Carry out electrical installation works within commercial premises
• Complete Electrical Installation Condition Reports (EICRs)
• Carry out periodic emergency lighting inspections and testing
• Fault diagnosis and rectification on electrical systems
• Testing and certification of electrical installations and minor works in line with BS7671
• Work in accordance with NIC/EIC approved contractor requirements
• Communicate effectively with clients, suppliers and internal teams
• Maintain site logs, diaries, task sheets and photographic reports
• Organise daily workload efficiently and work proactively

What we are looking for

• Strong knowledge of commercial electrical installations
• Experience testing and certifying electrical systems
• Ability to fault-find and rectify electrical issues
• Experience with emergency lighting and fire alarm systems
• Knowledge of DALI lighting control systems
• Experience with BMS control wiring and fault finding

Qualifications

• City & Guilds 2391 or 2394 & 2395 (or equivalent)
• 18th Edition Wiring Regulations
• Completed electrical apprenticeship
• IPAF and PASMA (desirable)

Personal Skills

• Full UK driving licence
• Excellent communication and time management skills
• Proficient in Word, Excel and Outlook
• Professional, reliable and self‑motivated
• Able to work independently or as part of a team

Critical Location Requirement

To support operational response times and business needs, applicants must live within one hour of Central London during peak traffic. Applications from candidates outside this travel radius will not meet the requirements of the role.

Career Prospects at Acorn

Acorn is committed to developing its people for the long term.

Many of our engineers progress into senior engineering, specialist, or management roles as they grow within the business. We actively encourage skill development, increased responsibility, and career progression for individuals who show commitment, reliability, and a strong customer‑focused approach.

As our service offering and client base continue to grow, there are ongoing opportunities for overtime, role development, and exposure to a wide variety of technically interesting sites and systems.

Why Join Acorn?

A stable, well‑established company with over four decades of industry experience

A supportive, knowledgeable internal team that understands engineering roles

A strong focus on teamwork, professionalism, and safety

Genuine long‑term career progression opportunities

PPM‑led work across varied sites in the local and surrounding counties

We are an Equal Opportunity Employer and do not discriminate against any employee or applicant for employment because of race, colour, sex, age, national origin, religion, sexual orientation, gender identity, status as a veteran, and basis of disability

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When you apply, we may conduct a background check using public databases and websites and utilising a web search engine. Your CV may be retained for a maximum period of one year.

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