At a Glance
- Tasks: Conduct power flushing, replace hot water cylinders, and install heating systems.
 - Company: Join SERT, a leader in energy-efficient home retrofitting.
 - Benefits: Competitive pay, consistent work, and supportive team environment.
 - Why this job: Make a real difference in homes while earning great pay.
 - Qualifications: NVQ Level 2 or 3 in Plumbing & Heating and relevant experience.
 - Other info: Long-term opportunities with prompt weekly payments.
 
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.
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.
Location: 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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Wet Work Engineers / Plumbers Subcontractor Roles employer: Sert Group
Contact Detail:
Sert Group Recruiting Team
StudySmarter Expert Advice 🤫
We think this is how you could land Wet Work Engineers / Plumbers Subcontractor Roles
✨Tip Number 1
Network like a pro! Reach out to fellow tradespeople and industry contacts. You never know who might have leads on subcontractor roles or upcoming projects that need your skills.
✨Tip Number 2
Show off your expertise! When you get the chance, share your past experiences and successes in similar roles. This helps potential employers see the value you bring to their team.
✨Tip Number 3
Stay active on job boards and our website! Regularly check for new opportunities and apply as soon as you see a role that fits. The early bird catches the worm, right?
✨Tip Number 4
Prepare for interviews by brushing up on common questions related to plumbing and heating systems. Being ready to discuss your technical knowledge will set you apart from the competition.
We think you need these skills to ace Wet Work Engineers / Plumbers Subcontractor Roles
Some tips for your application 🫡
Tailor Your CV: Make sure your CV highlights your experience with water-based heating systems and power flushing. We want to see how your skills match the role, so don’t be shy about showcasing your qualifications!
Show Off Your Experience: In your application, mention specific projects you've worked on that relate to the responsibilities listed in the job description. This helps us see your hands-on experience and how you can contribute to our team.
Keep It Professional: While we love a friendly tone, remember to maintain professionalism in your written application. This includes proper grammar and spelling, as well as a clear structure that makes it easy for us to read.
Apply Through Our Website: For the best chance of getting noticed, make sure to submit your application through our website. It’s the quickest way for us to receive your details and get the ball rolling on your application!
How to prepare for a job interview at Sert Group
✨Know Your Stuff
Make sure you brush up on your knowledge of water-based heating systems and power flushing techniques. Be ready to discuss your past experiences with hot water cylinder replacements and how you've tackled any challenges in the field.
✨Show Off Your Skills
Bring along any relevant qualifications, like your NVQ Level 2 or 3 in Plumbing & Heating. If you have a portfolio of previous work or references from satisfied customers, don’t hesitate to share those too!
✨Be Professional
Since you'll be liaising with householders, demonstrate your customer service skills during the interview. Practice how you would explain technical issues in simple terms and show that you can maintain a friendly and professional demeanour.
✨Prepare Questions
Think about what you want to know about the role and the company. Ask about the types of projects you'll be working on, the support you'll receive, and how they ensure compliance with health and safety standards. This shows you're genuinely interested and engaged.