Gemini AMPM Ltd · via Time Served · open vacancy
Gas Suppression Engineer (Installation, Service & Maintenance)
£35k to £48k basic plus paid overtime, shared call-out, a van, workplace pension and employee ownership · Full time · London & the South East · Field-based from Burgess Hill
Posted 29 September 2026 · open until filled, applications reviewed weekly
A new role in Gemini AMPM's suppression work: installation, commissioning, service and maintenance of gaseous extinguishing and kitchen suppression systems across London and the South East. Server rooms, comms rooms, switchrooms, archives and commercial kitchens, for clients whose fire detection we already look after, so the cause and effect is agreed in-house rather than argued over between contractors.
Apply in 60 seconds or email your CV to cv@timeserved.uk
The work
- Installation and commissioning of gaseous systems: inert gas (IG-541, IG-55) and chemical agents (FM-200 / HFC-227ea, FK-5-1-12), pipework, nozzles, cylinders, actuators and release panels
- Planned service and maintenance to BS EN 15004 and BS ISO 14520: cylinder weighing and pressure checks, actuator and hold-off tests, pipework and nozzle inspection, certification on the day
- Room integrity (door fan) testing, and advising on the sealing work a failed test needs
- Kitchen suppression systems (Ansul R-102 and equivalents): install, service and fusible link changes
- Detection and release interfaces to BS 7273-1 with our own fire alarm engineers: cause and effect done in-house
- Reactive visits and discharge recovery, with shared call-out and a van
What we're looking for
- Time served on gaseous suppression: installation, commissioning or service on Kidde, Fike, Siemens, Sevo or equivalent systems
- Working knowledge of BS EN 15004 / BS ISO 14520 and BS 7273-1; BAFE SP203-3 company experience valued
- Room integrity testing experience, or keen to be trained on it
- Fire alarm engineers ready to cross into suppression are welcome: we will train the discipline
- Electrical grounding (18th Edition or similar) and manufacturer training certificates are a plus
- Clean UK driving licence; based within reach of London or the South East
Why here
Gemini AMPM is employee-owned: stay, and you own part of the company. The range on this page is basic salary, deliberately wide, because where you land in it depends on tickets, experience and patch; overtime, call-out and the van sit on top. Progression runs on the Academy ladder, and a human reads every application within three working days.
Tell us what you are worth: the target salary box on the form is there for a reason, and we would rather pay the market than pay an agency.
More about this trade at AMPM: Gas and fixed suppression engineer · All standing roles · Salary guide