Heat Treatment Specialists

Summitglow Ltd - Heat Treatment Specialists is a family owned company which was established in 1983, as such we have over 35 years' experience and expertise in thermally processing a vast range of materials by a wide range of processes. These include Case Hardening, Hardening and Tempering, Nitriding and Annealing to name but a few.

Our sites operate 24 hours a day, 5 days a week to provide you with a fast reliable service.

We also have our own fleet of vehicles to allow us to deliver and collect your work within a 150 mile radius of Sheffield. Outside this range we are happy to arrange return carriage of your work using our transport partners.

We serve a diverse range of industries including

• Medical
• Oil & Gas
• Automotive & Motorsport
• Hand & Machine Tool
• and many more

In addition to holding individual company approvals we are ISO9001:2015 registered so you can be assured of our quality.