Contract / Inte

HIU Engineer

RGB

Dartford, Kent, DA1 1BX

£42000 - £45000 per annum

Posted: 14 October 2026 (3 days ago)

Closing date: 13 November 2026

Ref: IUHS5

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About the Role

RGB seeks an HIU Engineer for a mobile role covering Dartford and London, paying £42,000 to £45,000 yearly on a contract basis. Duties include servicing and repairing heat interface units within district heat networks across residential and commercial sites. Applicants should hold relevant plumbing or heating qualifications, with fault-finding ability on HIUs and associated plant. A company van and fuel card are supplied, alongside paid travel of one hour each way. No call-out rota applies. Staff receive 23 days' holiday plus Bank Holidays, Vitality private healthcare, overtime at enhanced rates, and ongoing training.

HIU Service / Breakdown Engineer
Location : London (Mobile Role)
Salary
£42,000 - £45,000 Basic + Up to 10% Monthly Performance Bonus
Benefits
- Company van and fuel card
- Paid travel (1 hour each way)
- No call-out rota
- 23 days annual leave plus Bank Holidays
- Overtime paid at:
- Time and a half
- Double time (where applicable)
- Vitality Private Healthcare
- Ongoing training and career development
About the Company
An established and growing building services specialist with a team of around 27 employees, delivering maintenance, design, installation and project solutions across London. The business specialises in district heat networks and works on a range of mixed-use, residential and commercial developments.
Due to continued growth, an opportunity has become available for an experienced HIU Service / Breakdown Engineer to join the team.
The Role
You''ll be responsible for carrying out planned preventative maintenance (PPM), reactive repairs and fault finding on Heat Interface Units (HIUs) and associated district heating plant across London.
This is a mobile position working on a variety of modern residential and mixed-use developments, ensuring heating and hot water systems operate safely and efficiently.
Key Responsibilities
- Service, maintain and repair Heat Interface Units (HIUs)
- Diagnose and rectify faults on district heating systems
- Carry out planned preventative maintenance (PPM)
- Attend reactive breakdowns across London
- Work on associated mechanical plantroom equipment
- Complete service reports and documentation accurately
- Provide excellent customer service while representing the business professionally
- Ensure all work is completed safely and in accordance with industry standards
Requirements
- Previous experience servicing and repairing HIUs
- Strong mechanical plantroom experience is essential
- Experience working on district heating networks
- Good fault-finding and diagnostic skills
- Full UK Driving Licence
- Strong communication and customer service skills
- Able to work independently and manage your own workload
What''s on Offer
- £42,000 - £45,000 basic salary
- Up to 10% monthly performance bonus
- Company van and fuel card
- Paid travel (1 hour each way)
- No call-out rota
- Plenty of overtime available (paid at enhanced rates)
- Vitality Private Healthcare
- 23 days holiday plus Bank Holidays
- Stable, long-term opportunity with a growing and well-established business