Main Office: Garelochhead, Helensburgh – G84 0AQ 01436 810038

Our Clients

Listening to your needs and advising your ideal solution is an element of what truly sets us apart
"To provide a welding and fabrication service that meets or even exceeds our customer's requirements in both product quality and service. To specifically focus on each individual customer's needs and to conduct our activities in an economically viable, safe and environmentally sustainable manner."
‘ NJS Mission Statement’


Years Service

  • “We have been using NJ Slee for over 25 years. They have consistently proven to be a dedicated, competent and reliable contractor. They have an excellent safety record, audited regularly by our central HSE team. We shall continue to use NJ Slee for the foreseeable future”

  • “This was a difficult project with the scope changing several times, and access to carry out the works very limited. The key to success was the contractor being able to accommodate these changes, and carry out the works at short notice. Working in conjunction with the building staff was undertaken by the contractor on this project which ensured smooth running during the project period.”


  • “NJS Welding and Fabrication are a competent and knowledgeable contractor, providing quality service on all the projects we have worked with them. Whether direct welding supply or bespoke fabrication, there attention to detail, and willingness to assist is excellent. Definitely a subcontractor we would recommend, the complete package.”
  • “The company consistently proved to be highly efficient and motivated towards project goals, they worked safely at all times and could change direction rapidly should the need arise.”
  • “I am extremely happy with all aspects of their work and personnel and will use them at all times for project work in the future.”
  • “Professional quality works, completed on schedule and safely on every job at QinetiQ.”
  • “As always N J Slee have provided prompt and high quality work and product in support of the NATO Submarine Rescue System”

Some of our customers
with all manner of projects

Among many other bluechip companies….