Whatever your requirement, benefit from Charlesworths heritage of bespoke plastic and rubber moulding.

Whether it's one or one million; inserts, outserts, threads or lost cores; components of less than a gram to the size of a steering wheel;

Charlesworths are able to offer our customers injection moulding & compression moulding of thermoplastic & thermosetting plastic materials, insert & outsert moulding, advice and assistance with product design and material choice, rapid prototype using 3D printing, tool design and manufacture.


Privacy Policy


We will not make your personal details available to anybody else. Credit card information supplied by you is entered directly to the Paypal secure server. We neither handle nor store credit card information. 

Privacy Statement:

We are committed to protecting your privacy. We will only use the information that we collect about you for the order you are making. The type of information we will collect about you includes: 

your name  
phone number  
e-mail address  

We will never collect sensitive information about you without your explicit consent. The information we hold will be accurate and up to date. You can check the information that we hold about you by e-mailing us. If you find any inaccuracies we will delete or correct it promptly. 



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Willie J Charlesworth first set up his business during 1897 in Washwood Heath, Birmingham producing small tools and bicycles. Before long he was machining plastics plugs & sockets for the emerging wireless industry. This lead to him forming Charlesworth Mouldings with three of his sons Percy, Leslie & William.
By 1941 with the retirement of his father, Percy with his son Cyril set up on their own as Charlesworth & Son which over 70 years later is still being run by his family.


Charlesworths specialise in high quality, small quantity plastic injection & compression mouldings in all thermoplastic and thermosetting materials. Our wide range of processing equipment gives us the ability to produce mouldings ranging from the simplest components right through to the most complex, often containing inserts and outserts in all types of plastic, see stock materials for a small selection. With the latest 3D CAD package, FDM (fused deposition modeling) system and in house toolroom we are able to provide the opportunity to produce rapid prototypes. By using a network of local specialist toolmakers we are able to offer a quick turn round for mould production. Specialising in short productions runs we can accommodate any size of production run, even one offs, and are happy to work to call-off schedules and carry stock to allow a Kan Ban style delivery system. Our extensive knowledge and experience in the plastics industry and the facilities to produce an enormous variety of components, our varied customer base covers a multitude of industries including:

  • aerospace,
  • automotive,
  • construction,
  • instrumentation,
  • marine,
  • leisure.

With our quality & inspection approved by several major aircraft companies, you can be assured that your business will be in experienced hands.