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 Thames Valley North area.
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.
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: Thames Valley North
Salary: up to £44000 depending on experience plus overtime and callout
Hours: 41.25 hours a week
We believe in supporting our employees both professionally and personally.
As part of our team, you'll enjoy:
Family Friendly Pay
Life Assurance
Death in Service Insurance
360 Wellbeing App, including 24/7 access to GP appointments
Fertility Treatment Support Leave
Paid Maternity Leave
Paid Paternity Leave
Gym membership discounts and a wide range of lifestyle savings
Employee Refer-a-Friend Bonus Scheme
Employee Recognition Programme
The Role
As a Van Mobile Engineer, you will be responsible for carrying out planned preventative maintenance, servicing and reactive repairs across multiple customer sites. You will work independently while maintaining close communication with clients, subcontractors, the helpdesk team and contract managers to ensure the highest levels of service delivery.
Key responsibilities include:
Planned preventative maintenance and reactive maintenance works
Diagnosing and repairing mechanical and building services plant
Attending breakdowns and service calls
Maintaining accurate records and reporting on completed works
Liaising with clients and providing updates on work progress
Maintaining site logbooks and compliance documentation
Participating in the out-of-hours emergency call-out rota
Ensuring all work is completed safely and in accordance with company procedures
About You
To be successful in this role, you will have:
City & Guilds in Mechanical Engineering or equivalent qualification
Completed a recognised mechanical engineering apprenticeship or be a time-served maintenance engineer
Strong knowledge of M&E building services
Experience working with HVAC systems, boilers, air conditioning, ventilation, heating and cooling systems
Understanding of Legionella awareness and health & safety regulations
Good working knowledge of Microsoft Office, including Outlook, Word and Excel
Excellent communication and organisational skills
Ability to work independently and as part of a team
Full UK driving licence
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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Building Services Engineer – Thames Valley North in High Wycombe 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.
