James Technical Services was formed by Glen James in 1995

About Us

JTS is an independent specialist manufacturing company, established in 1995 to design and build reliable, high-performing environmental test chambers, serving a wide variety of industries.

Operating from a modern purpose-built factory unit, we believe in working closely with clients from enquiry and quote to delivery and beyond, to ensure their chamber meets with their requirements.


Design and manufacture are undertaken in-house by our team of skilled engineers and technicians.

Our systems are designed to be highly reliable, adaptable and flexible over the lifetime of the chamber.

We are constantly improving and developing the way we work, and how we approach design, to keep pace with changing industry.


We provide ongoing training for staff, to ensure compliance with evolving standards and regulations, as well as building and updating skills and personal professional development.

We are an equal opportunities employer, and believe it is possible to have a family flexible approach whilst maintaining high standards of manufacturing.

Made in Wales, our suppliers are British wherever possible.

Our Team


Glen James: Glen has been designing and building test chambers since 1978. He leads our team on design, quality control and technical development.

Susan James: Finances, strategy and growth, and people.


Gillian Byrne: Gill is our Sales Engineer, and has been involved with JTS almost since inception.

Production/Design Manager

Dave Price

Office Administrator

Andrea Lewis


Rhys Griffiths, David Latham, Andrew Davies and Oliver James are key to our manufacturing processes with mechanical, electrical, refrigeration and programming skills.

Contact us


 Unit 3, Talgarth Business Park, Brecon, LD3 0PQ

Tel: 01874 711 209

Email: sales@jts-test-chambers.co.uk