Building Services Engineer

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 currently seeking a Building Services Engineer to join our team, carrying out planned preventative maintenance (PPMs) across our sites around London and the surrounding urban areas.

You will carry out planned preventative maintenance, servicing and reactive repairs across a varied portfolio of client sites, working independently but supported by a dedicated helpdesk and contract management team.

To meet the operational demands of the business,
candidates must live within a commutable distance that allows travel to Central London within one hour during rush hour
.

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:

Central London and the surrounding urban areas

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

Carry out PPM, servicing and reactive maintenance across multiple sites

Respond to call-outs during normal working hours and participate in an out-of-hours emergency rota

Communicate clearly with clients, subcontractors and suppliers to ensure smooth service delivery

Liaise with the internal helpdesk and administration teams

Maintain accurate job reports, log books and documentation

Keep Contracts Managers informed of job progress and site issues

Attend sites punctually, presented professionally and wearing appropriate PPE

Strong knowledge of M&E building services

Experience with HVAC plant including air conditioning, boilers, controls, heating and ventilation systems

Good working knowledge of health and safety regulations

City & Guilds in Mechanical Engineering or equivalent

Time-served mechanical or maintenance engineer (apprenticeship preferred)

Proficient in Microsoft Office (Word, Excel, Outlook)

Full UK driving licence

Excellent communication and time management

Strong organisational and interpersonal skills

Self‑motivated with the ability to work independently or as part of a team

Confident in diagnosing faults and making informed repair decisions

To support business needs and response times,
applicants must reside within one hour of Central London during peak travel times
.

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.

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