Celebrating 30 Years of Business
- 12 February 2026
- Company News
Angela Robinson (Operations Director, Fraser Sinclair (Managing Director) and James Crawford (Factory Manager)
On 6th February 2026, Williams Window Fabrication Limited celebrated 30 years in business, marking three decades of continuous manufacturing from our base in Clydebank Industrial Estate.
The company has grown from a local start-up into a trusted name in PVC and glass fabrication, supplying an estimated 117,000 windows and over 6,000 doors to more than 15,000 customers across Scotland and beyond.
🪟 117,000 windows in a row would form an orderly, well-insulated line all the way from our factory in Clydebank to Dundee (about 140km)!
At an average of 8 windows per home, that’s over 14,600 houses improved.
Over 7,828 working days, Williams Windows has navigated major shifts in construction standards, energy efficiency requirements, and manufacturing technology, while remaining firmly rooted in Clydebank.
“Thirty years ago, three Williams set out to build a business based on quality, reliability and local trust,” said Fraser Sinclair, Managing Director. “Reaching this milestone — and seeing the number of homes and businesses we’ve helped improve — is a huge source of pride for our entire team. We’re incredibly grateful to our staff and the customers who’ve supported us since 1996.”
In recent years, the business has invested heavily in modernisation, including the transition to digital accounting systems, a full replacement of our vehicle fleet, progress towards net-zero operations, and the completion of our first Modern Apprenticeship. The company is on track to achieve record turnover in the 2025/26 financial year, underlining continued demand for locally manufactured products.
As we enters our fourth decade, Williams Windows & Doors remains focused on quality, sustainability and training the next generation of skilled fabricators in West Dunbartonshire.
