sternfenster building

Start Selling Sternfenster

Save time, reduce your costs and make more money when you start selling Sternfenster.

#SternFensterAt50

spinning wheel image

The Top Eight Reasons To Choose Sternfenster

The reasons to buy from Sternfenster are endless, but here are the top eight voted for by our trade customers:

pound icon sternfenster

Competitive Trade Prices

Sternfenster are committed to offering the highest quality at the most competitive trade prices.

sternfenster warranties

Exceptional Warranties

We offer industry leading warranties and we are proud to offer market leading aftercare services.

delivery times logo

Fast
Lead Times

We offer lead times as fast as five days without compromising on quality.

easy order logo

Easily Order uPVC & Aluminium Online

We have a fantastic online system which makes ordering your uPVC and aluminium products easier than ever.

factory logo

Leading uPVC, Aluminium & Glass Fabricators!

We are one of the UK’s largest trade fabricators of high quality uPVC, Aluminium Windows and Doors. With our own in-house glass line and toughening plant, we truly are a one stop shop.

order tracking

Innovative SFPlus Order Tracking & Quotes

Your dedicated resource centre to track deliveries, access dispatch notes, view quotes and orders, review past contracts and access marketing and technical information for our products.

trophy logo

Multi Award
Winning
Fabricator

We’ve been finalists for the past five years at the prestigious G Awards, proudly taking the top spot for fabricator of the year and training and development initiative of the year for 2022 & 2023.

marketing swatchbook

Marketing Materials: Branding, Brochures & More!

Access our huge range of marketing materials and industry leading CGI showroom to sell our fantastic products!

bfrc logo
lincoln age logo
ggf logo
smart logo
bsi logo
lincoln logo
fensa logo
G24 Finalist
g23 award logo
edgetech logo
doorco logo
saint gobain logo
deceuninck logo
ultion logo

Over 50 Years at Sternfenster

Join us as we celebrate our 50th year in business with a chance to win prizes!

Win Big Today!

Approved Installer Network

Learn about the benefits of being a part of our Approved Installer Network, with the opportunity to be a part of it.

As a family run business, established 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.

Don’t take our word for it, hear from our installers themselves!

sternfenster aluminium factory

Start Selling Sternfenster

As one of the UK’s largest trade fabricators of uPVC and Aluminium, we are proud to offer installers market leading products that have been trusted by homeowners and tradespeople alike for over 50 years! We have always invested an exceptional amount of effort into our extraordinary network.

Our industry leading 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.

colour swatches brochure

It’s About You And Your Business

Part of our commitment to our installers is reflected in our ability to deliver outstanding quality with the fastest lead times possible — because we know this enables them to grow their reputation as well as their profits.

But selling Sternfenster is far more than just purchasing and 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.

deceuninck frames

Our Key Supply Partners

As one of the largest organisations in the country, we manage the supply chain flow both upstream and downstream to help you manage your own business more efficiently. Discover more about our key supply partners below and start selling with us today.

Deceuninck uPVC

We are a proud supplier of award winning Deceuninck uPVC windows and doors.

Versatile Profiles

With Deceuninck uPVC windows and doors, we can manufacture products suited for a vast range of residential and commercial projects. As a Sternfenster Approved Installer, you’ll be able to fit high-quality Deceuninck windows anywhere in the UK.

High Performance Solutions

Award Winning Colour Range

FIT A MORE ENERGY EFFICIENT WINDOW WITH STERNFENSTER

Our energy efficient uPVC window and door range from Deceuninck is Part L and Future Homes ready.

FIND OUT MORE

Smart Aluminium

Our long standing partnership with SMART Systems enables us to offer a wide range of high quality aluminum windows and doors.

Modern Profiles

Aluminium is not only inherently strong and secure, it can easily be structured into styles to suit any UK project. We can supply contemporary modern profiles for homeowners along with shop fronts and large patio doors for the commercial sector.

Fully Customisable

FIND OUT ABOUT OUR RANGE OF ENERGY EFFICIENT ALUMINIUM WINDOWS AND DOORS

FIND OUT MORE

DoorCo Composite Doors

We are constantly innovating and pushing industry boundaries with our partners at DoorCo.

Enhance Your Sales

Our key supply partners DoorCo are always pushing the boundaries with innovative new door technology. With our reliable supplier, we’re able to deliver the quality our customers have come to expect of us over our 50 years in business.

Advanced Thermal Performance

FIND OUT MORE ABOUT GRIPCORE DOORS

FIND OUT MORE

Training Academy

Gain access to our exclusive Sternfenster Training Academy when you Start Selling Sternfenster!

Sternfenster are proud to present the Sternfenster Training Academy – a fantastic opportunity to brush up on your Sternfenster product knowledge and gain valuable on the job skills. Deliver exceptional installations to your customers with a hands-on Sternfenster training day!

Learn all about installing our products in this unique hands-on course!

START SELLING STERNFENSTER

* indicates required fields


Privacy Policy

* indicates required fields


Privacy Policy

Start Selling Sternfenster Today

Get in touch today with enquires for any of our market leading products. Sell the best with Sternfenster.

GET IN TOUCH

Become An Approved Installer

Grow your business with an award winning manufacturer. We’ll support you with materials and expert guidance every step of the way.

GET IN TOUCH

Outsource Fabrication To Sternfenster

Looking to outsource for any of your projects? Get started today. We will provide you with expert guidance for your trade success.

GET IN TOUCH

© 2024 Sternfenster Window Systems

Terms & Conditions Privacy Policy

Start Selling Sternfenster

Join Our Network

Outsource Fabrication

Start Your Quote

Find an Installer

I'm a Trade Customer