Lignum by The Joinery Network has become the UK’s first timber window and door system to gain the Secured by Design Police Preferred specification.

Doug Skins, development officer at Secured by Design, said: “This is great news for small and medium joineries who wish to produce Secured by Design windows and doors and I look forward to working with The Joinery Network over the coming years.”

Owen Dare, founder director of The Joinery Network, said: “Thanks to our work with Secured by Design, the glazing industry can offer homeowners a timber system that meets those demands and offers a genuine alternative to PVCu and aluminium.

“Lignum timber windows and door offer a real alternative to discerning homeowners who want home improvement products that offers unique design flexibility, sustainability and has proven performance values.

“Lignum also overcomes supply chain issues which have hit the PVCu market, as all Lignum windows and doors are manufactured in the UK.”

The full UKAS test registered and third party checked Lignum system includes flush casement, box sash and spring balance vertical sliding windows, along with French, single, entrance and bifold doors.

The Secured by Design Lignum system has also been tested to PAS 24:2016, Document Q, BS 6375: 1, Document L1B, and Document M certification, creating the most superior range of timber windows and doors.