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 recruiting a Foot Mobile Engineer to cover a prestigious Central London patch.
This is a walking mobile role, with engineers travelling between sites on foot and via public transport. The position suits someone who is organised, proactive and comfortable working independently while maintaining high standards of service across multiple client locations.
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.
Location: Central 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)
Zone 1 & 2 Travel Card
Key Responsibilities
Carry out planned preventative maintenance (PPM), servicing and reactive repairs across assigned sites
Attend call‑outs during normal working hours and participate in the out‑of‑hours emergency rota
Communicate effectively with clients, suppliers and subcontractors
Liaise closely with the internal helpdesk and administration teams
Accurately complete reports, job sheets and compliance documentation
Maintain log books and site records
Ensure punctual attendance, professional presentation and correct use of PPE
What we are looking for
Good working knowledge of M&E building services
Experience with HVAC plant including air conditioning, boilers, controls, heating and ventilation
Strong awareness of health and safety requirements
Qualifications & Experience
City & Guilds in Mechanical Engineering or equivalent
Time‑served mechanical or maintenance engineer (apprenticeship preferred)
Proficient in Microsoft Office (Word, Excel, Outlook)
Personal Skills
Excellent communication and time management skills
Highly organised and self‑motivated
Strong interpersonal skills
Comfortable working independently or as part of a team
Able to assess faults and make informed maintenance decisions
Location Focus
This role is dedicated to Central London, making it ideal for engineers experienced in working across high-density, central London environments using public transport.
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
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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Building Services Engineer – Central London employer: Acorn
At Acorn, we prioritise our people, offering a supportive work culture that fosters teamwork and professionalism. With over 40 years of industry experience, we provide excellent career growth opportunities, including progression into senior roles and exposure to diverse engineering challenges across prestigious Central London locations. Our commitment to employee wellbeing is reflected in our generous benefits package, including 25 days holiday, travel allowances, and a focus on skill development.
