Building Services Engineer
Join our engineering team maintaining and improving building services across a portfolio of commercial sites in the Thames Valley region.
Join Acorn - Build your Career
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.
The Role
We are seeking an experienced Building Services Engineer to join our engineering team. The successful candidate will be responsible for carrying out planned preventative maintenance, reactive repairs and fault finding across a variety of commercial sites.
The role involves working independently while maintaining strong communication with clients, colleagues and subcontractors to ensure a consistently high standard of service delivery.
What you can expect
Location
Thames Valley, working across a variety of commercial sites in the region.
Salary
Up to £44,000 depending on experience, plus overtime and callout.
Working hours
41.25 hours per week with opportunities for additional overtime.
Pension scheme
Company pension scheme to help you plan for the future.
Company events
Regular company events that bring teams together and recognise success.
Wellbeing support
Wellbeing benefits including 24‑hour turnaround GP appointments for the whole family.
Van & fuel card
Company van and fuel card to support you out on site.
Salary sacrifice scheme
Access to a salary sacrifice scheme for approved benefits and purchases.
Key Responsibilities
- Carry out planned preventative maintenance, 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
Knowledge & competencies
- Good working knowledge of M&E building services.
- Experience with HVAC plant including air conditioning, boilers, controls, heating and ventilation.
- Understanding of Legionella control.
- 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.
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.
Apply now
Send us your details, CV and any relevant certificates and our team will be in touch to discuss your application.
