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About us & our services

JSG Engineering is a family run business, established in 1990. We have manufactured all types of mould tools, specialising in plastic and rubber injection, rubber compression and transfer tools. Our knowledge and capabilities of toolmaking help us meet all customers expectations. We also have vast expertise in small batch production and high-end one off components to tight tolerances, using a wide range of materials.


We provide services to the following Industries:

Aerospace Automotive
Construction Commercial
Defence Electronic
Marine Medical




Our services include: 



  • Plastic Injection Mould Tools
  • Rubber Compression Tools
  • Rubber Transfer Tools
  • Rubber Injection Tools
  • Refurbishment & Repair
  • CNC 2D Machining
  • CNC 3D Machining           


  • CNC Spark Erosion
  • Wire Erosion
  • Jigs & Fixtures
  • Grinding
  • Welding
  • Product Design
  • Prototyping













JSG Engineering   |  Units 3 & 4  |  The Wren Centre  |  Westbourne Road  |  Emsworth  |  Hants  |  PO10 7SU  |  Quality Toolmakers in Portsmouth & Hampshire