HIU Service Engineer Apprentice

HEMIKO LIMITED

Recruiting nationally

Closes in 28 days (Friday 21 November 2025 at 11:59pm)

Posted on 23 October 2025

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Summary

The successful candidate will be responsible for delivering operation and maintenance services across our fleet of heat networks. We are looking for someone who has experience with servicing and repairing HIUs, has a keen interest in heat districts/heating systems, is enthusiastic, willing to learn, reliable.

• Wage:

  £25,500 a year

  Check minimum wage rates (opens in new tab)

  Remuneration: Base £25,500-£27,500. Discretionary bonus based on individual and business performance.

• Training course: Heat network maintenance technician (level 3)
• Hours: Monday - Friday 8am-5pm. Exact timings will be discussed at interview or on successful appointment.

  40 hours a week

• Start date:

  Thursday 1 January 2026

• Duration:

  3 years 3 months

• Positions available:

  1

Work

Most of your apprenticeship is spent working. You’ll learn on the job by getting hands-on experience.

What you'll do at work

Key responsibilities:

• Working under the direct supervision of our Technical Manager
• Basic part replacement
• Completion of planned preventative maintenance activities in line with company maintenance schedules
• Servicing HIUs and repair works
• Completion of fault finding and repairs to HIU’s
• Attend reactive callouts to sites to reinstate heat and resolve HIU failures
• Management of site-based project work and development of the scope of works for plant remediation
• Safe isolation of equipment before commencing works
• Good communication with the team always
• Ensure your own system records are kept up to date to ensure accurate and secure records. This will involve the completion of clear and concise online work orders
• Can assist with 1 monthly mechanical PPM checks within plant rooms

Where you'll work

London & South UK

Training

Apprenticeships include time away from working for specialist training. You’ll study to gain professional knowledge and skills.

Training provider

SOUTH & CITY COLLEGE BIRMINGHAM

Training course

Heat network maintenance technician (level 3)

Understanding apprenticeship levels (opens in new tab)

What you'll learn

Course contents

• Plan and organise tasks including the selection and organisation of resources.
• Comply with health and safety regulations and guidance.
• Comply with environmental and sustainability regulations and requirements, including safe disposal of waste, re-cycling or re-use of materials, and efficient use of resources.
• Identify and document hazards and risks in the workplace and apply control measures.
• Prepare and maintain the work area.
• Apply maintenance practices and standards.
• Conduct thermodynamic calculations.
• Complete calculations for cold fill pressure of building and differential pressure across pump.
• Conduct flow, pressure and temperature measurements using portable instrumentation, including static pressure and differential pressure reading.
• Test electrical system for live and dead.
• Install and certify electrical wiring to three phase pump.
• Interpret and use engineering representations.
• Maintain water network systems, for example cleaning of strainer baskets and heat network water sampling ready for analysis.
• Repair or replace pipework.
• Record or enter information - paper based or electronic. For example, energy usage, job sheets and task list, risk assessments, equipment service records, test results, handover documents and manufacturer's documentation, asset management records, work sheets, checklists and waste environmental records.
• Apply quality assurance procedures and monitoring processes.
• Perform remote performance diagnostics.
• Apply continuous improvement techniques. Devise suggestions for improvement.
• Apply team working principles.
• Apply ethical principles.
• Communicate in writing. For example, with colleagues and stakeholders.
• Communicate with others verbally, for example, colleagues and stakeholders.
• Use information and digital technology. Comply with GDPR and cyber security regulations and policies.
• Carry out and record planned and unplanned learning and development activities.
• Check tools and equipment including calibration. Use and store tools and equipment.
• Conduct visual inspection.
• Apply problem solving techniques.
• Apply fault finding techniques.
• Perform maintenance on distribution plant equipment.
• Operate plant equipment remotely through BMS using remote plant operation techniques, including switch duty of a duty standby pump, change lead heat source and valve operation.
• Operate plant equipment locally from control panel, including pump and heat source.
• Operate e-stop and safety circuits on equipment and return plant to normal service, including fire alarm re-activation.
• Perform maintenance on residential heat network systems.
• Conduct HIU energy balance and efficient operations calculations.
• Apply balancing and flow optimisation techniques.
• Apply techniques to remove, install, configure and set network communications for residential heat meters.
• Perform commissioning of electrical HIU and mechanical HIU and a space heating circuit.
• Plan and organise tasks including the selection and organisation of resources.
• Comply with health and safety regulations and guidance.
• Comply with environmental and sustainability regulations and requirements, including safe disposal of waste, re-cycling or re-use of materials, and efficient use of resources.
• Identify and document hazards and risks in the workplace and apply control measures.
• Prepare and maintain the work area.
• Apply maintenance practices and standards.
• Conduct thermodynamic calculations.
• Complete calculations for cold fill pressure of building and differential pressure across pump.
• Conduct flow, pressure and temperature measurements using portable instrumentation, including static pressure and differential pressure reading.
• Test electrical system for live and dead.
• Install and certify electrical wiring to three phase pump.
• Interpret and use engineering representations.
• Maintain water network systems, for example cleaning of strainer baskets and heat network water sampling ready for analysis.
• Repair or replace pipework.
• Record or enter information - paper based or electronic. For example, energy usage, job sheets and task list, risk assessments, equipment service records, test results, handover documents and manufacturer's documentation, asset management records, work sheets, checklists and waste environmental records.
• Apply quality assurance procedures and monitoring processes.
• Perform remote performance diagnostics.
• Apply continuous improvement techniques. Devise suggestions for improvement.
• Apply team working principles.
• Apply ethical principles.
• Communicate in writing. For example, with colleagues and stakeholders.
• Communicate with others verbally, for example, colleagues and stakeholders.
• Use information and digital technology. Comply with GDPR and cyber security regulations and policies.
• Carry out and record planned and unplanned learning and development activities.
• Check tools and equipment including calibration. Use and store tools and equipment.
• Conduct visual inspection.
• Apply problem solving techniques.
• Apply fault finding techniques.

Training schedule

You will attend our Bordesley Green campus one day a week.

If you do not have your English and maths at Grade 4/C above you will also be able to complete your functional skills alongside.

Requirements

Essential qualifications

Other in:

• Electrical (grade Basic)
• Heat Network, Energy Centres and plantrooms (grade Some)
• Mechanical/Engineering (grade Pass)

Desirable qualifications

GCSE in:

• English (grade 4/C)
• Maths (grade 4/C)

Share if you have other relevant qualifications and industry experience. The apprenticeship can be adjusted to reflect what you already know.

Skills

• Communication skills
• Organisation skills
• Customer care skills
• Problem solving skills
• Team working
• Initiative
• Motivated

Other requirements

Specifically, the successful candidate will have some mechanical/plumbing experience, buy in to the apprenticeship scheme, willing to work with/learn from others and be reliable. We are looking for someone who has experience with servicing and repairing HIUs. We are looking for someone who has a keen interest in heat districts/heating systems, is enthusiastic, willing to learn, reliable and someone who will contribute positively to our safe & supportive working culture. Experience in district heating networks is preferred but not essential. Full UK driving license (valid for at least 12 months)

About this employer

Hemiko is a fast-growing innovative business which is looking to invest in and deliver over £1bn of heat network projects in the coming years. We fund, design, build, operates and maintain low carbon district energy networks and building energy systems. This work is for communities, towns, and cities. We work with local authorities, developers, house builders, and property owners. We are looking to lead on town and city scale decarbonisation. We recognise that the decarbonisation of heating and the built environment is one of the least known and “solution clear” areas - this is where we are focused and where we will be deploying our investment and our resource. We are an innovative, design and proactive intelligence led company, looking to attract people who think around a problem and past an issue. We want to be at the front end of commercial and technical innovation and are looking for team members to come on that journey. Hemiko is absolutely committed to an honest and collaborative approach to all our work, always looking for better ways to do things and avoid the business curses of unnecessary complexity and silos. We are a young, friendly business in the very rapidly growing low carbon energy sector, which provides significant opportunities for career flexibility and development. We focus on delivering bespoke solutions with positive outcomes for the communities we serve. Hemiko is absolutely committed to an honest and collaborative approach to all our work, always looking for better ways to do things and avoid the business curses of unnecessary complexity and silos. We are a young, friendly business in the very rapidly growing low carbon energy sector, which provides significant opportunities for career flexibility and development. We focus on delivering bespoke solutions with positive outcomes for the communities we serve.

https://www.hemiko.com/ (opens in new tab)

Company benefits

Holidays 25 days a year plus statutory holidays - with an option to purchase, or sell, up to an additional 5 days per annual leave year. Pension plan provision. Private health care scheme available. Company laptop/tablet/mobile phone, etc.

Disability Confident

A fair proportion of interviews for this apprenticeship will be offered to applicants with a disability or long-term health condition. This includes non-visible disabilities and conditions.

You can choose to be considered for an interview under the Disability Confident scheme. You’ll need to meet the essential requirements to be considered for an interview.

After this apprenticeship

We will want you to join our journey toward a more environmentally and technically responsible and effective way of delivering energy systems; moving away from conventional processes into a more innovative and free-thinking environment. Our business culture promotes this approach with a persistent willingness to listen to new ideas and explore new solutions. 

Ask a question

The contact for this apprenticeship is:

SOUTH & CITY COLLEGE BIRMINGHAM

Jade Kellegher

jade.kellegher@sccb.ac.uk

The reference code for this apprenticeship is VAC1000347941.

Apply now

Closes in 28 days (Friday 21 November 2025 at 11:59pm)

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