sternfenster: 40 Years of Manufacturing

A family run business that is dedicated to delivering high quality products and excellent customer service, sternfenster has over 40 years experience in both the trade and retail industry. They operate from an 80,000 square metre state of the art factory, with every product undertaking a rigorous manufacturing process.

They offer one of the most comprehensive portfolios in the UK, providing an exceptional range of windows and doors.


Sternfenster Windows

With such an extensive portfolio you certainly won’t be stuck for choice with a huge range of uPVC and aluminium window and door styles to choose from.

This even includes a series of unique windows and doors, available exclusively from Sternfenster. This Styleline series produces a unique, seamless corner weld for properties in need of maintaining an authentic, traditional look.

State-Of-The-Art Factory

Operating from an 80,000 square metre state of the art factory, Sternfenster supplies high quality windows and doors to home-owners and installers across the UK.

Every window and door is taken through stringent checks and a rigorous manufacturing process so that only the very best leave their factory.

Sternfenster Factory


Everything You Need Is In-House

Sternfenster have an in-house toughening plant to two fully automated lines which produce 3,500 sealed units every week. They even have an additional paint spraying facility which means they are able to meat any colour requirement.

With everything in-house, Sternfenster can offer you the best quality products and the best possible prices.

Dedicated Sternfenster Staff

With over 140 dedicated employees, Sternfenster is 100% committed to delivering the best possible service. Over 80% of their business is a result of repeat customers and recommendations.