Heat network maintenance technician
Level 3 · AdvancedEngineering and manufacturing 3 yr typical
About this apprenticeship
What it involves
The Heat Network Maintenance Technician apprenticeship at Level 3 trains you to inspect, maintain, and repair the district heating and communal heating systems that distribute hot water to homes, businesses, and public buildings. You will work on pipework, heat interface units, substations, and controls, keeping systems running efficiently and safely. It supports the UK's transition to low-carbon heat and leads to roles with heat network operators, local authorities, and energy contractors.
On the job
What you’ll learn
Heat network system design - pipes, pumps, and heat exchangers
Heat interface unit (HIU) installation, commissioning, and servicing
Pipework hydraulics, pressurisation, and leak testing
Control systems, metering, and remote monitoring technologies
Health and safety including working with high-temperature systems
Low-carbon heat sources - heat pumps, CHP, and energy centres
Fault diagnosis and planned preventive maintenance techniques
On the job
What you’ll do day to day
Service and repair heat interface units in residential properties
Inspect and maintain pipework, valves, and pumps on heat networks
Diagnose faults and carry out repairs to restore heat supply
Read and interpret heat network schematics and P&ID drawings
Complete maintenance records and handover documentation
Respond to customer heat loss and hot water faults
Carry out meter reading checks and data logging
The deal
How this apprenticeship works
You earn a wage from day one. You are a paid employee, not a student. There are no tuition fees - the training is funded by your employer and the government.
About 20% is “off-the-job” training. Roughly a day a week is spent learning away from your normal duties - at a college, training provider, or online - working towards a recognised qualification.
It ends with an end-point assessment (EPA). Near the end, an independent assessor checks you can do the job to the national standard - through tests, a project, a portfolio or an interview. Pass it and you are fully qualified.
How to get there
What you need to start
Level 3 (Advanced) - roughly A-level level. Employers usually look for some GCSEs (often English & maths around grade 4/C) or a Level 2 apprenticeship first. English & maths can sometimes be finished during training.
What’s next: Can lead to a Level 4/5 (Higher) apprenticeship, or straight into the role.
Entry requirements are set by each employer and can vary - always check the specific vacancy.
Hear from employers
What it’s really like
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