Pre-Commissioning Engineer (Water Treatment)

Company: Future Select Recruitment
Apply for the Pre-Commissioning Engineer (Water Treatment)
Location: Grays
Job Description:

Job Title: Pre-Commissioning Engineer (Water Treatment)

Location: Grays, Essex

Salary/Benefits: £28k – £45k + Training & Benefits

Due to recent company growth, our client is seeking a switched‑on Pre‑Commissioning Engineer, who is fully versed in BSRIA and ACOP L8 guidelines. You will be traveling across the South East of England, servicing a variety of client contracts, including commercial, industrial and public sector. Our client is a national player within the industry and is known for their strong infrastructure which allows them to support further training and development. We are seeking someone who has a flexible and hardworking attitude. The successful candidate can expect competitive base salaries and benefits packages.

Locations of work include: Grays, Tilbury, Hornchurch, Romford, Ilford, Barking, Chigwell, Enfield, Epping, Chelmsford, Basildon, Billericay, Potters Bar, Harrow, Watford, Wembley, St Albans, Southall, Slough, Twickenham, Kingston upon Thames, Mitcham, Bromley, Sidcup, Erith, Dartford, Gravesend, Orpington, Sevenoaks, Caterham, Woking.

Experience / Qualifications

  • Hands‑on experience working as a Pre‑Commissioning Engineer
  • Good working knowledge of ACOP L8 and BSRIA guidelines
  • Flexible to travel in line with company needs
  • Experience working across a variety of premises
  • Good literacy and numeracy skills
  • Proficient in using IT software

The Role

  • Undertaking pre‑commissioning cleans on various water systems
  • Power‑flushing and back‑flushing
  • Chlorinations on pipework
  • Flushing on a range of systems and pipework, including CHW and LTHW
  • Chemical dosing
  • Mains injections
  • Cleans and disinfections on CWST
  • Producing regular service reports
  • Working to agreed project deadlines

Alternative Job Titles

Water Treatment Engineer, Flushing Engineer, BSRIA Flushing Technician, Pre‑Commissioning Technician.

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Posted: May 23rd, 2026