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FJN-GEM, the new trading name for GEM Engineering and Maintenance Services Ltd, has a lineage tracing back around 50 years and an experienced team with a wealth of combined knowledge across a range industries including Oil, Gas, Power, Petro Chem, Nuclear, Food, Automotive and Aerospace.

We are here to apply that experience and knowledge to your projects.

If you are looking for either new fabrication or repair of the following -

  • Heat Exchangers  

  • Industrial Piping

  • Steelwork

  • Platforms, Steps and Staging

  • Pressure Vessels

  • Aerospace and Automotive Tooling Transport and Trollies

  • Machine Shop Facility

​...then get in contact with us for a quote.

Piping | Fabricom Janus Neill


FJN GEM is proud to work with various industry sectors including power & energy, aerospace, pharmaceutical and food production. 

Welding workshop | Fabricom Janus Neill


FJN GEM offers a range of first class services including heat exchangers, industrial pipework, steel fabrications and aerospace tooling storage and transport.

Engineering careers | Fabricom Janus Neill


Looking for a new role? T​aking the leap into management? Tradesmen? Are you a Pipefitter, welder or fabricator get in touch and send your CV by clicking below.

Engineers on site | Fabricom Janus Neill


Meet our team and get in touch to discuss your requirements.


FJN GEM is the new trading name of GEM Engineering and Maintenance Services Limited. We can trace our history back around 50 years and we've built an enviable reputation for the supply and refurbishment of shell and tube heat exchangers. Industrial pipework and steelwork alongside other maintenance and manufacturing services.

Elements of our business can be traced back through the following industry company names such as Caxios, Janus Neill, Fabricom, GDF SUEZ, MTM Machining and FJN.

We are able to provide professional services to the Oil, Gas, Chemicals, Aerospace, Renewables and Power industries amongst others ensuring a rapid response and competitive prices.

Our aspiration is to be our clients’ “Partner of Choice” when it comes to the provision of engineering, procurement, fabrication and construction services.  Our work is quality assured as we are accredited against ISO 9001:2015 and BS EN 1090.


Professionalism    Integrity   Trust    Team Spirit

Linked In | Fabricom Janus Neill
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