Pre Commissioning Engineer - £40-50K + Bens

Water System Flushing & Commissioning Engineer & Senior Engineer positions

South East / London

️ Full-time £40-50K+ Excellent Benefits

Join a Great Team with the Backing of a Leading PLC

Are you an experienced Water System Flushing & Commissioning Engineer looking to take the next step in your career?

We're a well-established, medium-sized business with a reputation for high standards, strong team ethic, and a supportive working environment. As part of a large PLC, we combine the agility and close-knit feel of a smaller company with the job security, progression opportunities, and excellent benefits that come from being part of a larger group.

The Role

You'll be responsible for the flushing, cleaning, chlorination, and commissioning of closed loop and domestic water systems on a range of commercial and residential projects across London and the South East. Working closely with project managers and clients, you'll play a key role in ensuring systems meet all relevant standards and specifications.

Key Responsibilities

• Carry out pre-commission cleaning and flushing of closed water systems
• Chlorination and disinfection of domestic water systems
• Water sampling and testing to BSRIA and industry standards
• Completing detailed reports and commissioning documentation
• Liaising with clients, consultants, and site teams

What We're Looking For

• Experience in water system flushing and commissioning (BSRIA BG29/BG50 knowledge ideal)
• Strong understanding of water hygiene and regulations
• CSCS card (essential), and relevant water hygiene certification (preferred)
• Full UK driving licence
• Professional, reliable, and able to work independently or as part of a team

What We Offer

• Competitive salary (based on experience)
• Company van + fuel card if needed/wanted
• Overtime opportunities x1.75
• Pension scheme
• 25 days holiday + bank holidays
• Ongoing training and development
• Clear career progression within a larger PLC structure
• A supportive and collaborative team culture

If you're ready to join a team where your work is valued and your career is taken seriously, we'd love to hear from you.

Please only apply if experienced in pre com engineering. Contact