Trusted by generations of building and construction professionals

COVID-19 Update 8th April 2020

COVID-19 Update 8th April  2020

In response to an ever-changing market, from Tuesday 14th April 2020 we have decided to re-open our Lintel, Expamet and Expamet Construction (masonry support/windposts) factories on a skeleton staff.




This is to support the demands of customers still trading in these difficult circumstances. Initially, these will be manned by a skeleton staff to ensure their safety and the safety of our delivery partners, customers, and the wider community.

On this basis, we may not be able to offer our standard lead times but will work to provide products where required in a timely manner.

Please email your orders through to your regular contact:
Lintel orders:
Expamet Orders:

Our senior commercial and technical support teams are also still contactable, but working remotely from home.

Alternative if you require a quote please follow one of the links below:

Lintel schedules  
Windpost Design & Quotes
Masonry Support Design 
Bowater Doors Sales & Quotes

We want to thank you for your continued support and understanding over the last few weeks. We have used the time to take stock of the situation and put a plan in place to ensure we can deliver on our promise of keeping our workforce safe whilst delivering our products and services to the UK construction industry.

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.