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Field Technical Engineer - HIU

Job in City Of London, Central London, Greater London, England, UK
Listing for: Insite Energy
Full Time, Part Time position
Listed on 2026-09-18
Job specializations:
  • Trades / Skilled Labor
    HVAC Tech / Heating Engineer, Installation Technician, Maintenance Technician / Mechanic, Field/Service Technician
Salary/Wage Range or Industry Benchmark: 32000 - 46000 GBP Yearly GBP 32000.00 46000.00 YEAR
Job Description & How to Apply Below

About the role

Insite HIU Engineer’s support the installation, maintenance, and effective operation of heat network equipment (HIU’s, Valves, Meters, PAYG devices & metering systems) deployed within our client’s developments and their customers’ homes.

The HIU Engineer role includes the installation & commissioning, fault detection & remedy of all in property assets which are connected to the central heat and cooling networks. Much of this role includes working in the built environment on multi- million-pound construction schemes and in people’s homes.

Specific responsibilities include
  • Installation and commissioning Insite prepayment & controlled credit systems
  • Using a laptop and tablet device to commission metering equipment, update records and systems.
  • Problem solving and fault- finding issues on site and liaising with other trades and the main contractor.
  • Liaise with & report to site staff (clients, principal contractors, consultants & heating / plumbing sub- contractors)
  • Heat Interface Unit (HIU) replacement, maintenance, and servicing (mainly in occupied homes).
  • Mechanical Ventilation Heat Recovery Units (MVHR) installation, replacement and maintenance.
  • Fan Coiled Units (FCU) and cooling meter replacement, maintenance, and servicing.
  • Installation and maintenance of in property heating and cooling controls.
  • Commissioning, service, and repair of in property heating and cooling systems.
  • To conduct site surveys and assist the Installations Team with the installation and commissioning of new systems.
  • Full installation, retrofitting and maintenance of multi utility Pay-As-You-Go metering systems, including prepayment valve, mains spur, wiring and commission (mainly in occupied homes).
  • Installing IT Gateways & Radio Frequency (RF) equipment.
Work in plant rooms
  • Provide both pre-planned and reactive maintenance to plant rooms which we are contracted to maintain (training provided).
  • Carry out monthly inspections and condition reports on plant and kit installed with the plant rooms and infrastructure (training provided).
  • Replacement of components such has pumps, valves and other components as deemed necessary (training provided).
Support on-going Customer Services
  • Provide reactive maintenance; including equipment installed in people’s homes or commissioned within a scheme but not yet handed over to clients / residents
Location and working hours
  • Full-time position (37.5 hours per week).
  • Monday to Friday working 7.5 hours per day between 08:00 and 20:00.
Required skills and attributes
  • Minimum qualification of NVQ level 2, or equivalent, in plumbing and heating
  • Certified in 18th edition domestic wiring (not essential, training can be provided)
  • CSCS card - Essential
  • SMSTS or H&S qualification - desirable
  • First aid trained – desirable
  • Full driving licence essential
  • Positive attitude towards providing customer service excellence in all aspects of work
  • Happy to work as an individual but contribute to the team goals, ethos and share best practice
Benefits
  • Salary:
    Competitive base salary + KPI related bonus
  • Vehicle:
    Company van included (personal usage permitted subject to tax and fuel charges)
  • Holiday Allowance: 25 days of holiday per year, plus English bank and public holidays, plus an additional day of Birthday leave.
  • Pension Scheme:
    Employer pension contribution matched at 4%.
  • Employee Assistance Programme (EAP):
    Free, confidential support available for personal and professional challenges.
  • Corporate Social Responsibility (CSR) Programme: "DO RIGHT WITH INSITE" provides up to 2 paid days off per year for volunteering with company-led initiatives. Additional information can be viewed here
  • Social Events:
    Regular company social events, including an annual Summer Party and Christmas Party.
  • This benefits package offers a vibrant and…
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