Birtley Group is home to three of the UK construction sectors most trusted brands, Birtley Lintels, Expamet and Bowater Doors.  Providing quality materials to the building sector since 1965, they are one of the longest established manufacturers in the UK.  Birtley Group is a wholly-owned subsidiary of the Hill & Smith Group, with a group workforce of over 3,600 people and a solid foundation for their continued support of the UK construction industry.