Job Opportunity: Pre-Commissioning Engineer - Water Hygiene
Location: London & Surrounding Areas (field-based)
Salary: £30,000 - £38,000 (DOE) + Overtime + Vehicle + Benefits
Employment Type: Full-Time, Permanent

We are recruiting for an experienced Pre-Commissioning Engineer to join a leading water hygiene and treatment specialist, delivering high-quality services across commercial and industrial sites in London and the South East.

This is an exciting opportunity for a skilled engineer with a strong background in pre-commission cleaning of closed water systems to join a forward-thinking company that values expertise, safety, and progression.

The Role:
As a Pre-Commissioning Engineer, you will be responsible for carrying out BSRIA-compliant flushing, chlorination, and water quality testing of closed heating and chilled water systems on construction and retrofit projects.

Key Responsibilities:

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Carry out pre-commission cleaning (BSRIA BG29/2021)

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Flushing and dosing of closed-loop heating and chilled systems

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Conduct water sampling and testing (pH, conductivity, biocide levels, etc.)

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Disinfection of water systems in accordance with ACOP L8 and HSG274

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Produce detailed site reports and flushing certification

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Work with project teams and site managers to ensure delivery to specification

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Maintain high standards of health & safety on site

Requirements:

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Proven experience in pre-commissioning and water treatment of closed systems

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Familiarity with BSRIA guidelines (BG29 & BG50)

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CSCS card (essential)

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NVQ Level 2 or equivalent in Mechanical/Plumbing (preferred)

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Full UK driving licence

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Strong attention to detail and report writing skills

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Willingness to travel to various sites across London and the surrounding areas

What's On Offer:

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Competitive salary (£32,000 - £40,000 depending on experience)

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Company vehicle + fuel card

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Paid travel time and overtime opportunities

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25 days holiday + bank holidays

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Pension scheme

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Full PPE and equipment provided

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Ongoing training and career progression

Interested?
If you're a skilled Pre-Commissioning Engineer looking to join a dynamic and growing team, we'd love to hear from you.

Apply now with your CV or get in touch for a confidential discussion