Pre Commissioning Engineer - £40-60K Basic, London

Water System Flushing & Commissioning lead engineer
📍 South East / London
🛠️ Full-time | £40-60K + 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 danny.woodcock@fmcnetwork.co.uk