Building Services Engineer - Plumber

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.

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)

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.

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

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

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