As one of the UK’s largest trade fabricators of uPVC and Aluminium, Sternfenster are proud to offer installers market leading, innovative products that have been trusted by homeowners and tradespeople alike for over 45 years! Our exceptional products, fabricated in our state of the art factory in Lincoln, are just one of the many reasons to Start Selling Sternfenster to your customers.
As a family run business, establish in 1974, we have always invested an exceptional amount of effort into our extraordinary network. Part of our commitment to our installers is reflected in our ability to deliver outstanding quality with the fastest lead times possible.
Selling Sternfenster is more than just installing our products. We have an extraordinary range of benefits on offer to ensure you are delivering the best possible services to your customers and clients. From exclusive marketing and training materials to exceptional aftercare services and warranties, it is no wonder installers throughout the UK continue to invest their trust in Sternfenster.
Gain access to our exclusive Sternfenster Training Academy when you Start Selling Sternfenster! Learn all about installing our products in this unique hands-on course!Learn More
We are one of the UK’s largest trade fabricators of high quality uPVC, Aluminium Windows and Doors.
We were honoured to be named G19’s Fabricator Of The Year in 2019’s G19 Awards!
Sternfenster are committed to offering the highest quality at the most competitive trade prices.
We offer exceptionally fast lead times as low as five days, without compromising on quality.
We have a fantastic online system which makes ordering your uPVC and aluminium products easier than ever!
Our exclusive SFPlus intranet is the perfect way to track your orders and get free quotes online.
We have an abundance of exceptional installation guides and training videos in our media hub!
It’s never been easier to market our products with access to a huge range of high quality marketing materials!
Our product warranties cannot be beaten. We are proud to offer market leading aftercare services!
Learn about the benefits of being a part of our Approved Installer Network, with the opportunity to be a part of it!
When you start selling Sterfenster, you will have a dedicated Field Account Manager assigned to you!
Here at Sternfenster, we have over 45 years of industry experience with no sign of slowing down!