Subcontractors wanted

    Industrial Mechanical & Heat Exchanger Subcontractors

    Industrial and large commercial plant needs engineers with mechanical depth. We work with self-employed mechanical engineers who can maintain plant and service or repair heat exchangers.

    Trades covered on this page

    Industrial mechanical, Heat exchangers.

    Typical scope of work

    • Plate heat exchanger stripping, cleaning and regasketing
    • Shell-and-tube heat exchanger inspections
    • Pipework modifications and valve replacement
    • Planned maintenance on mechanical plant
    • Isolation, permits and safe systems of work

    Typical sites: Factories, plant rooms, hospitals, district heating and large commercial buildings.

    Qualifications we ask you to evidence

    • Mechanical engineering or pipefitting qualification
    • Heat exchanger maintenance experience
    • Site safety training (for example CSCS) where clients require it
    • Lifting and confined space training where relevant

    Course and scheme names are examples. We check certificates and registrations during review, and we only offer work that matches what you are qualified to do.

    Insurance requirements

    We ask every applicant for current public liability insurance. Our usual minimum is £2,000,000, and many commercial clients require £5,000,000 before work on their sites is offered. If you employ anyone, employer's liability insurance is a legal requirement.

    Subcontract and self-employed work

    Industrial mechanical subcontract work and self-employed heat exchanger engineer jobs are offered when client projects need them. There is no guaranteed work.

    Joining our network does not guarantee any work or income. Jobs are offered when suitable work is available in your area, and you are free to accept or decline each one. You work as a self-employed contractor responsible for your own tax, tools, registrations and insurance.

    How to apply

    1. Open the UK Gas Plumbers engineer app at app.ukgasplumbers.com.
    2. Add your trades, working area, availability, qualifications and insurance documents.
    3. Our team reviews your application and contacts you if we have suitable work.
    Apply in the engineer app

    Frequently asked questions

    Do you need welders?

    Occasionally. Tell us your coded welding qualifications if you hold them.

    Is shutdown work offered?

    Sometimes, with dates agreed in advance.

    How do I apply?

    Apply online at app.ukgasplumbers.com. You'll add your trades, working area, qualifications and insurance details, and our team reviews each application.

    Is work guaranteed?

    No. We offer jobs when suitable work comes in for your trade and area. There is no promised volume or income.

    Ready to work with us? Apply online in the UK Gas Plumbers engineer app.

    Apply Now — Join Our Network
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    UK-Based Customer Service, 24 Hours a Day

    Our friendly support team answers every call, message and booking request — day, night, weekends and bank holidays. No call centres, no bots, no waiting in a queue. Speak to a real coordinator who will dispatch a Gas Safe engineer fast.

    • Answered within 30 seconds, 24/7/365
    • UK-based coordinators — no overseas call centres
    • Call, WhatsApp, live chat or online booking
    UK Gas Plumbers customer service agent wearing branded navy and yellow polo with headset, 24/7 emergency call out support
    24/7 EMERGENCY CALL OUT
    Talk to a Real Human

    UK-Based Customer Service, 24 Hours a Day

    Our friendly support team answers every call, message and booking request — day, night, weekends and bank holidays. No call centres, no bots, no waiting in a queue. Speak to a real coordinator who will dispatch a Gas Safe engineer fast.

    • Answered within 30 seconds, 24/7/365
    • UK-based coordinators — no overseas call centres
    • Call, WhatsApp, live chat or online booking