For any unvented cylinder work, yes.

Is this a job with Ape BMS Controls?

No. Applications go to the separate UK Gas Plumbers partner network. Ape BMS Controls continues to deliver its own BMS and controls services to customers.

Use the apply button, which opens https://app.ukgasplumbers.com. You will be asked for your trades, qualifications, insurance and the areas you cover.

Is work guaranteed once I am accepted?

No. Being accepted does not guarantee any number of jobs or any income. Work is offered when a client request matches your trade, availability and area, and you can decline it.

What evidence should I have ready for hot water systems engineer work?

Typically: G3 unvented hot water qualification; Gas Safe registration for gas-fired heaters; Knowledge of temperature control for Legionella risk. Only list qualifications you actually hold — they are checked.

Pumps & water services · UK Gas Plumbers partner network

Hot Water System Engineers Wanted

Engineers for unvented cylinders, calorifiers and commercial water heaters.

Apply for hot water systems engineer work

Typical hot water systems engineer scope

If you are looking for hot water systems engineer subcontract work, these are the kinds of tasks partner clients typically request. Not every task suits every engineer — you choose what you accept.

Unvented cylinder servicing and safety valve checks
Calorifier and plate heater maintenance
Commercial direct-fired water heater repairs (gas registered)

What to have ready when you apply

G3 unvented hot water qualification
Gas Safe registration for gas-fired heaters
Knowledge of temperature control for Legionella risk
Proof of identity, right to work in the UK and your trading details

This is a general guide, not a full or official list. The network confirms what it needs for each trade during the application.

Coverage and local context

Ape BMS Controls' own building controls engineers work across London and the Home Counties — including Croydon, Oxford, Maidenhead, Hertford and Ramsgate. That is our customer coverage, not a promise of hot water systems engineer work in those towns. When you apply, you tell the UK Gas Plumbers network which areas you can travel to, and it only offers jobs inside them.

Hot Water Systems Engineer subcontractor FAQs

Is G3 required?: For any unvented cylinder work, yes.
Is this a job with Ape BMS Controls?: No. Applications go to the separate UK Gas Plumbers partner network. Ape BMS Controls continues to deliver its own BMS and controls services to customers.
How do I apply?: Use the apply button, which opens https://app.ukgasplumbers.com. You will be asked for your trades, qualifications, insurance and the areas you cover.
Is work guaranteed once I am accepted?: No. Being accepted does not guarantee any number of jobs or any income. Work is offered when a client request matches your trade, availability and area, and you can decline it.
What evidence should I have ready for hot water systems engineer work?: Typically: G3 unvented hot water qualification; Gas Safe registration for gas-fired heaters; Knowledge of temperature control for Legionella risk. Only list qualifications you actually hold — they are checked.