Thirtieth birthday

National Window Systems marked its 30th birthday in April by opening every day in the month, as well as offering up to 30% off all of its products.

The family-run company, which is based on Yarm Road Industrial Estate in Darlington, was established by Stephen Bell and Kevin Stephenson in 1987 and now employs 18 people.

Three years ago, the company merged with HWL Windows Group, a Leeds-based manufacturer of PVC and aluminium windows and doors, which has allowed the company to expand and increase its product range.

National Windows launched its new conservatory village in November last year. Featuring six new builds, the enhanced show site features a wide array of innovative products including the Residence Collection of timber alternative windows, the energy efficient WarmCore bifolding door system and the aluminium, timber composite Opus roof lantern.

Stephen Bell, general manager at National Window Systems, said: “Reaching our 30th anniversary is a massive achievement from us and we are thankful to all our staff, customers and suppliers for your support in the past 30 years.”


Stephen Bell (third from left) and Kevin Stephenson (second from left) with the fitting teams, outside the company’s extended showsite.