Supporting growth across UK construction

With over 50 years of manufacturing expertise, Birtley continues to be the stalwart
of the lintel market, producing over 25,000 tonnes of steel products each year.


Expamet encompasses a wide range of products designed and manufactured
in Britain and trusted by generations of construction professionals.


Bowater by Birtley is a complete range of doors, including
composite, steel, fire and flood.


Galvanizing is probably the most environmentally friendly process available to prevent corrosion. Galvanizing can provide between 34 to 170 years of protection to steel.


7th February 2018

Kings Barton will be a sustainable new suburb to the North of Winchester. the development is a mix of apartments and two to five bedroom houses. THE DEVELOPMENT Kings Barton, Andover Road, Winchester SCHEME OBJECTIVES CALA Homes needed to achieve PART L requirements on plots throughout the development SUPATHERM RESULTS PSI Value calculations and full […]

7th February 2018

We have received a surge in interest for our new PSI Value Calculator as specifiers seek cost effective ways of reducing cold-bridging across the external envelope. Highly accessible via PC, tablet or mobile, our PSI Value Calculator offers an essential reference point for building designers and energy assessors. The Value Calculator instantly presents W/mK thermal transmittance data on our Supatherm […]

7th February 2018

The Birtley Group Pinnacle Awards, an internal programme that recognises excellence across the business group, has now entered its second year. First up for 2018 is our technical team leader, Michael Pallister, winner of the January award. Michael consistently goes the extra mile for our customers, ensuring scheduling timings are met and customer expectations are delivered. He […]

6th February 2018

Lintels are an essential structural element wherever there is an aperture in a wall. The wall above most doors and windows is supported by a lintel. The majority of lintels used in the UK are made from steel.   What standards apply to lintels? Steel lintels should be manufactured and tested in accordance with BS […]

25th January 2018

As part of a wider move to increase customer support, Birtley group has launched its customer magazine, The Wire. The 36 page magazine aims to provide all customers, under the group’s umbrella, access to news, events and features from around Birtley Group, along with customer profiles, current affairs and research insights that they may find […]

13th December 2017

Bowater by Birtley set out its stall at the beginning of the year that it would offer choice to the market. Following news of its double rebate and flood composite doors, the company is pleased to promote its 60 minute fire rated door. “We offer both 30 minute and 60 minute fire rated doors, to […]

13th December 2017

Flood defence is a hot topic in the UK, especially through the winter months, but are we doing enough as an industry to address the critical needs of residents in high risk flood areas? Kevin Kiernan of Bowater by Birtley suggests more could be done. Are Doors Doing Their Bit? Flooding is an increasingly relevant […]

1st November 2017

The National Fenestration Awards have named their finalists and Birtley Group is thrilled that the Bowater by Birtley range is among the respected industry companies that have made it to the shortlist. “We’re thrilled to be on the shortlist of these industry awards,” says Kevin Kiernan of Birtley Group, “especially as we only officially brought […]

25th October 2017

Birtley Group are pleased to announce that we are a sponsor of the 2017 Housebuilder Awards. This is our first time as a sponsor and we are very pleased to be part of such a fabulous industry event.  The Housebuilder Awards is now in its 13th year and is organised and managed by Housebuilder magazine, […]

16th October 2017

Our group marketing manager, Zoe Watson, talks to HouseBuilder magazine about meeting Part L requirements. See the full article here