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 - Plumber to join our team, carrying out planned preventative maintenance (PPMs) across client sites in Milton Keynes.
Our Culture
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.
We value clear communication, strong client relationships, and personal accountability. Teamwork is central to how we operate, with engineers working closely with internal teams to ensure work is completed efficiently, safely, and to a high standard.
Health and safety, presentation, and pride in workmanship are fundamental to everything we do, and we believe these values are key to both client satisfaction and employee wellbeing.
Location: Milton Keynes
Salary: up to £36000 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)
Responsibilites
Carry out planned and reactive plumbing and mechanical maintenance, servicing, and repair works
Ensure all works are completed in line with company procedures, current HVAC standards, and relevant legislation
Attend reactive call‑outs during normal working hours and as part of the on‑call rota
Maintain punctual site attendance, wearing issued PPE and company uniform at all times
Accurately diagnose faults and recommend follow‑up or remedial works where required
Submit clear, concise, and accurate job reports and completion notes
Complete and submit weekly timesheets in line with company requirements
Communicate effectively with Contracts Managers on job progress, issues, and completion
Build and maintain positive working relationships with clients, suppliers, and internal teams
Organise your own workload and manage time effectively to meet service expectations.
What We’re Looking For
Proven experience as a plumbing or mechanical building services technician
Ability to carry out planned and reactive maintenance independently
Full UK driving licence
Strong organisational skills with the ability to manage your own workload
Clear and professional communication skills, both written and verbal
A reliable, punctual, and professional approach to work
Willingness to participate in an on‑call rota
Qualifications & Technical Skills
Recognised trade background in plumbing or mechanical services
Good understanding of health and safety requirements within building services
City & Guilds / NVQ in Plumbing or Mechanical Building Services
Electrical qualification or basic electrical awareness
Experience working in commercial or multi‑site environments
Knowledge of wider building services systems
Health & Safety training (e.g. asbestos awareness, manual handling)
We value attitude and reliability as much as technical skill, and we are keen to hear from engineers who want to build a long‑term future with a growing business.
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
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
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