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Job Details

Mobile Mechanical/HIU Engineer


My client is a well-established (30 years +) and growing organisation within the HVAC industry. they have a prestigious variety of contracts covering London and the Home Counties. 

Salary:                                 Up to £41,000 (plus estimated £5k in overtime)

Hours:                                 8am – 5pm

Job Type:                             Permanent

Location of work:               99% inside of M25
Head Office:                       Essex
Call out Rota:                     Approximately 1 week in 7

Overtime rate:                    Time and a half or double time plus standby allowance of £150



  • Competitive salary
  • Holiday entitlement: 25 days plus Bank Holidays
  • Bonus incentive schemes
  • Fully equipped van less than 3 years old (Transit or similar)
  • Uniform, phone, tablet, fuel card, parking credit card
  • Child care voucher scheme
  • Auto enrolment pension
  • Training and development
  • Sickness insurance scheme
  • Tech desk support

Experience/knowledge of:
  • Hydraulic systems for heating/hot/cold and boosted, to include knowledge and understanding of measuring/achieving flow rates and all ancillary components.
  • Pumping systems and invertor driven pumps maintenance and set up.
  • Pipework systems to include balancing, commissioning, flow control and general valves
  • Pressure vessels and pressurisation units installation and maintenance
  • HIU systems and distribution to include HIU service and maintenance
  • Pressure testing
  • Primary, secondary, tertiary fault finding of issues and provision of accurate reporting and recommendations
  • Understanding heat losses methods to improve with accurate reporting and recommendations
  • Ability to undertake system drain downs and refills effectively (whole building)
  • Ability to change pumps, valves, valve components (directional and modulating), plates exchangers to include servicing and inspection.
  • Working within Energy Centres, Large centralised plant rooms, building distribution systems.

Understanding or familiar with:
  • Gas boilers and safety
  • Electrical systems and safety
  • Plant controls and safety
  • Safety and working safely

To Apply:
  • You must be living and authorised to work in the UK to apply for this position.
  • You will also need to be living within commutable distance to Central London.
  • A full UK driving licence is essential plus clear DBS check.
  • At least 3 years mobile HVAC experience.