Joseph & Jesse Siddons Ltd is a trusted name in the manufacture of high-quality iron castings, serving industries that demand precision, durability, and reliability.

With over 175 years of experience, we combine heritage craftsmanship with modern innovation, remaining a family-owned business with a strong financial foundation.

We specialise in repeat batch production and highly cored castings, meeting stringent technical requirements across a range of volumes—from low-production runs to several thousand units per year.

Our state-of-the-art foundry operates with:

• Casting weights ranging from 0.1kg to 1,000kg
• Annual melting capacity of 3,000 tonnes
• Three sand moulding lines
• ISO 9001 certification for over 20 years
• Lloyd’s Register approval, ensuring compliance with the highest industry standards

With over 175 years of experience, we combine specialist knowledge and modern manufacturing to deliver high-quality Grey & SG Iron castings.

Still family-owned and run by 5th and 6th generation of the Siddons family, we have invested over £4 million in upgrading the plant and equipment over the last 5 years to ensure efficient production and the long-term future of the foundry.

Certified to ISO 9001 and Lloyd’s Register approved, our castings are engineered for reliability, ensuring long-term integrity in mission-critical applications.