About WSM Plastics

Sectors we specialise in

We have specific expertise across these specialist areas and can also help across other tool making and injection moulding requirements

About WSM Plastics


We deliver solutions to your requirements, helping you create the right products more efficiently and cost-effectively.

Services Menu

Our specialist services

We are highly experienced across the full production lifecycle from design, prototyping, toolmaking, injection moulding and post moulding services

Case studies

Read what our customers have to say about our services

Case studies

We have been helping our customers with tool making and plastic injection moulding production for over 25 years. Our customers choose us for our personal approach and world-class knowledge in all aspects of tool making,  plastic injection moulding and ancillary services.

Our process

Our process


At WSM Plastics we have an experienced technical team who will always make time to discuss your enquiry and review your design brief. You can get in touch by completing our quotation webform, email us or call us. 

Project enquiry
Overview Service


Our bespoke design service helps individuals and businesses accelerate ideas into reality with our combined knowledge of engineering and design. We can provide you with 2D technical drawings and 3D CAD models alongside guidance on design for manufacture. We are expertly supporting the majority of engineering industries, regardless of the size of the project. Our engineers are flexible and experienced and will assist with your design and development using our best-in-class design methods. 

Find out more about our design support
Tool designer


Test your new product or part before taking it to production through our prototyping services. A prototype is an early sample and can be useful for engineering concepts or validation testing, design improvement or it can be used as stepping stones to full production. We are offering a suite of prototyping services including, 3D printing, CNC machining, aluminium tooling and pre-toughened tooling. Your prototype will ensure you have the correct design ready for manufacturing. 

Find out more about our prototyping services
Whistle Stop Plastics 3D Printer


We are a mould tool making and plastic injection moulding specialist. Our experienced in-house engineers manufacture bespoke tooling solutions for your full production requirements and work closely together to ensure the tool design is right the first time. Possessing a strong reputation in our ability to design and manufacture simple and complex injection moulded parts, we are flexible in the manufacture of high volume production to short specialised runs to meet any customer requirement.

Find out more about our plastic injection moulding production
Case Studies - Production

Quality Assurance

Our extensive industry knowledge, combined with our experience and expertise working across a broad range of sectors means we deliver the best solutions and can adapt our facilities to cater to specific industry approval system requirements and customer needs. Our quality assurance department has an extensive range of fully calibrated measuring equipment and our ISO 9001 accreditation demonstrates our commitment to our customers and ensures we manage quality across all operations.

Our QA process
Quality Assurance - Case Studies
1 Brief
2 Design
3 Prototype
4 Production
5 Quality Assurance
Case Study Harvey Water Softeners

“The team at WSM Plastics will always strive to improve processes and make the highest quality product in the most efficient way. WSM Plastics always seek to work in partnership with their customers, making for a great business relationship.”

Gavin Bridger Head of Manufacturing Operations at Harvey Water Softeners

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Interested in working with us? Discuss your next project with our dedicated team:

+44 (0)1903 875888 or email