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Wet Worker

Company:Daniel Owen Ltd
Salary:£42,000 - £43,000
Hours:Full-time
Location:Lambeth, SW8 1AT
Job type:Permanent
Posting date:8 Jul 2026
Closing date:7 Aug 2026
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Summary

Commercial Wet Worker (WRAS Approved Operative)

Daniel Owen is seeking an experienced Commercial Wet Worker (WRAS Approved Operative) to join our Commercial Heating & District Energy Team. You'll be responsible for the installation, servicing, maintenance, commissioning, and fault-finding of communal and district heating systems, with a strong focus on Heat Interface Units (HIUs) across residential and mixed-use developments.

Key Responsibilities

  • Install, service, repair, and commission Heat Interface Units (HIUs).
  • Diagnose faults and carry out repairs on communal and district heating systems.
  • Maintain heating controls, including Y Plan, S Plan, thermostats, programmers, motorised valves, and smart controls.
  • Install and maintain radiators, pumps, valves, and associated plumbing systems.
  • Carry out planned preventative maintenance (PPM) and reactive repairs.
  • Complete commissioning, system balancing, and performance testing.
  • Maintain accurate job records using PDA/mobile devices.
  • Participate in an out-of-hours call-out rota.
  • Deliver excellent customer service while working safely and in line with company procedures.

About You

  • City & Guilds Level 2/3 Plumbing qualification.
  • Formal Water Regulations/WRAS qualification.
  • Minimum 3 years' experience working on district heating systems.
  • Strong experience servicing and fault-finding on Heat Interface Units (HIUs).
  • Knowledge of communal heating systems, heating controls, and safe isolation procedures.
  • Full UK driving licence.
  • Able to work independently and as part of a team.

Desirable

  • G3 Unvented Hot Water qualification.
  • HIU manufacturer training.
  • Low Temperature Heating Systems training.
  • Experience working within communal plant rooms.

What We Offer

  • Competitive salary and benefits.
  • Company vehicle, tools, and equipment.
  • Ongoing training and manufacturer development.
  • Long-term career opportunities with a leading property maintenance contractor.

If you're an experienced HIU and district heating engineer looking for your next challenge, we'd love to hear from you.

Apply for this job

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