Keystone Lintels are the largest steel lintel manufacturer across the UK and Ireland. With an extensive range of galvanised and stainless steel lintels, the Keystone products range has a host of speciality lintels from Special Lintels, Brick Slip Feature Lintels Sun Lounge Lintels. The range also includes Masonry Support and Windpost Systems. Keystone have launched their new innovatively designed Hi-therm sustainability Lintel with improved fabric energy solution and also offers housebuilders a single cost effective way to reduce carbon emissions. With all products Keystone offer technical service support which includes onsite, a free lintel design, and full structural performance certificates and calculations.