Galvanizing and metal finishing services

Total support from our technical team, whenever you need it

Birtley technical experts are pleased to provide a comprehensive resource for stockists, specifiers and builders, free of charge.

Our support includes:

CAD lintel schedules from drawings supplied
Structural calculations for Building Regulations approval
Test reports on lintels covering loading, fire resistance and other factors
Advice on use of steel lintels in unusual situations such as reduced end bearings, point loadings and refurbishment projects
Detailed drawings to illustrate lintel usage in any particular situation
Bespoke design for a variety of applications including Arch, Gothic, Bullseye, Mitred and Curved-on-Plan variations. See our bespoke lintel options here


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Supatherm PSI Calculator for Thermally Broken Lintels

Part of the Birtley Group

Birtley began life as Birtley Building Products in 1965, based at the current site in County Durham. Originally a steel fabricator for the area’s mining and power generation industries, the company made its first steel lintels in 1967. Since then, Birtley has grown from reliable local supplier to a UK-wide force in construction design technology and product development.

In 1889, the British Metal Expansion Company was established in Hartlepool. It had sole European rights for the manufacture of expanded metal mesh, mainly for use as reinforcement and lath in the rapidly expanding sector of concrete construction. The business that grew from these early days later changed its name to Expamet.

Acquired by Birtley Group in 2015, Bowater Doors is a nationally-known name synonymous with top quality and imaginative composite residential door design and manufacture.

The product portfolio offers exclusive ranges for trade installers and a retail range providing doors direct to consumer and social housing organisations.

Birtley Galvanizing boasts one of the most impressive galvanizing plants in Europe. The plant achieves the finest quality hot-dip galvanized zinc protective coatings to BS EN ISO 1461. Using state-of-the-art technology the plant processes steel products using a computer controlled, automated handling system, enabling Birtley Galvanizing to provide full project solutions to many industries.