Job Title: Wet Work Engineers / Plumbers Subcontractor Roles
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Location: London & Home Counties (Multiple Positions Available)
Pay: Excellent day rates | Consistent pipeline of work
Job Type: Subcontractor | CIS
Overview:
SERT is recruiting up to 25 experienced Wet Work Engineers / Plumbers to support a major retrofit programme across London and the Home Counties. This role is ideal for qualified tradespeople with strong experience in water-based heating systems, looking for steady, well-paid subcontractor work .
Key Responsibilities:
Conduct power flushing to remove debris and improve system efficiency
Replace hot water cylinders in line with current safety and compliance standards
Install and upgrade radiators, TRVs, and associated pipework
Assess and advise on heating layouts and radiator sizing
Diagnose and repair faults within domestic heating systems
Liaise professionally with householders and maintain a high standard of customer service
Follow all relevant health, safety, and compliance procedures
Requirements:
NVQ Level 2 or 3 in Plumbing & Heating (or equivalent qualification)
Proven experience with power flushing and hot water cylinder replacements
Strong understanding of domestic central heating systems
Ability to interpret schematics and heating layouts
Own tools, flushing machine, and suitable vehicle (preferred)
UTR number and eligibility to work as a CIS subcontractor
Why Join SERT?
Consistent pipeline of retrofit projects
Long-term subcontractor opportunities
Prompt, weekly payments
Supportive operations and compliance team
Ready to apply?
Submit your CV today to join a growing retrofit team making homes across the South more energy-efficient.
Northwest London, North Hampshire, Berkshire
About the Role:
Typical Job: Power flush + 10 radiators (1-day job)
Contractor Rate: £35/hour
Direct Labour Package: £39,000 basic pay / £750/week guaranteed basic (even if no jobs)
£25/hour whilst working on installs
Permanent benefits included
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