Geoff Castles Boiler Services Limited
Welder / Pipe Fitter Engineer

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Welder / Pipe Fitter Engineer
Geoff Castles Boiler Services Ltd (GCBS)
Northern Ireland | Full-Time | Permanent
£35,000–£45,000 Basic Salary + Overtime Opportunities
Salary dependent on experience and welding qualifications
Geoff Castles Boiler Services Ltd is a leading industrial and commercial boiler and mechanical engineering company operating throughout Northern Ireland and the Republic of Ireland.
Due to continued growth, we are looking for an experienced Welder / Pipe Fitter Engineer to join our team.
The Role
This is a varied, hands-on engineering role working across industrial and commercial sites, with a particular focus on pipework fabrication, welding, boiler installations, steam systems, repairs and modifications.
The successful candidate will work as part of our engineering and project teams, carrying out a range of welding, pipefitting and mechanical installation work.
Typical work will include:
- TIG and MMA/Stick welding
- Fabrication and installation of industrial pipework
- Fitting and welding carbon steel and stainless-steel pipework
- Steam and condensate pipework
- Gas, heating and process pipework
- Boiler room pipework installations and modifications
- Boiler and plant repairs
- Pipework alterations and replacement
- Installation of valves, flanges, strainers and associated components
- Fabrication of pipe supports, brackets and associated steelwork
- Working from engineering drawings, sketches and measurements
- Welding repairs and modifications to existing plant
- Working on pressure systems and industrial equipment
- Working alongside our boiler engineers, commissioning engineers and project teams
- Travelling to customer sites throughout Northern Ireland and occasionally the Republic of Ireland
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The work is varied, with projects ranging from small boiler-room modifications and repairs through to larger industrial boiler, steam and pipework installation projects.
About You
We are looking for an experienced Welder / Pipe Fitter who can demonstrate:
- Strong TIG and MMA/Stick welding experience
- Good pipefitting and fabrication skills
- Experience working with a range of materials, particularly carbon steel and stainless steel
- Proven experience fitting and welding pipework
- Ability to read and understand engineering and isometric drawings
- Good knowledge of pipework fittings, valves and flanges
- Experience working on industrial or commercial sites
- A high standard of workmanship
- Good attention to detail
- A practical and positive approach to problem solving
- Ability to work independently and as part of a team
- Full UK driving licence
- Willingness to travel as required
Experience in industrial boilers, steam systems, process pipework, heating systems or mechanical engineering would be highly advantageous.
Welding Qualifications
Relevant welding qualifications and coded welding tickets would be advantageous, particularly TIG and MMA.
However, we are also interested in experienced welders who can demonstrate strong practical welding ability and a proven background in industrial pipework.
What We Offer
- £35,000–£45,000 basic salary, dependent on experience and qualifications
- Overtime opportunities
- Company van for the right candidate
- Part-time positions will be considered
- Company mobile phone
- Company tablet
- Company-provided PPE and workwear
- Ongoing training and development
- Opportunities to gain additional welding and industry qualifications
- Varied industrial and commercial work
- Opportunity to work on major boiler, steam and mechanical engineering projects
- Long-term employment with an established and growing engineering company
- Support from an experienced engineering and project team


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Why Join GCBS?
GCBS specialises in industrial and commercial boiler services, steam systems, burner services, mechanical engineering, pipework, fabrication, repairs and installations.
Our engineers work across a wide range of sectors, including manufacturing, food production, pharmaceutical, healthcare and other major industrial facilities.
You will have the opportunity to work on a genuinely varied range of equipment and projects, rather than being restricted to repetitive workshop fabrication.
This role would suit an experienced Welder / Pipe Fitter who enjoys site-based engineering work and wants the opportunity to develop their skills across industrial boiler and mechanical systems.
Apply Now
If you are an experienced Welder / Pipe Fitter Engineer looking for a new opportunity with a growing industrial engineering company, we would like to hear from you.
Join the GCBS team and become part of a company delivering specialist boiler, steam and mechanical engineering services across NI and ROI.
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