Choose your sector


Our accredited network of installers offers the highest quality uPVC and aluminium products with excellent customer service.

Trade Customer

Access our latest technical information, product content, video archives, media centre, Sternfenster Plus and much more.


The Fabricator Who Has It All

Sternfenster Window Systems Have Everything You Need

Published 29th January 2016 by Sternfenster Categories: Updates

Sternfenster – The Complete Package

Have you bought your windows from your usual fabricator, but had to turn to other suppliers for aluminium bi-folds, or alternative timber-look frames?

Some of us might be used to shopping around either to make sure we get the best deal, or because the products we need are not all available from the same supplier.

But when it comes to sourcing their frames, turns out installers prefer the “one-stop shop” concept, something that’s proving a lot more cost effective, and simpler to manage.

According to Lincoln-based fabricator, Sternfenster, since the launch of their exclusive timber-look range, StyleLine, more and more installers are coming on board to take advantage of the company’s comprehensive high-end range of products, which also includes Smart aluminium windows and doors.

Mike Parczuk, Sternfenster Managing Director, explains: “Different fabricators have different policies, so an installer has to adapt to major discrepancies between them, from quote to delivery – including lead times, but also quality standards, colour and hardware options etc. That’s obviously easier said than done, especially if the products are supplied for the same job.”

“This is why installers are turning to us in order to simplify their supply chain for premium frames, and benefit from more competitive prices,” continued Mike.

“But that’s not all – they are looking for a long-term partner that is committed to constant, sustainable investment that allows it to bring new products to the market, in many cases well ahead of other manufacturers.”

With over 40 years’ experience in the window and door industry, Sternfenster is still a family-run business.

Its strong investment policy and a long-term strategy enables its management to invest in the latest technologies available on the market in order to supply its clients with top notch quality products, and help them capitalise on the hottest and most lucrative opportunities on the market.

“Take our StyleLine range, for example,” said Mike.

“Sternfenster is the first fabricator in the UK to have invested in state-of-the-art machinery that has made it possible for us to launch a unique new product.”

“Our exclusive timber-look frames now complete our high-end collection, but we’re already thinking of our adding new ranges to our offer, to make sure we provide even more choice for our customers.”

Price is Important, But There’s More to a Supplier

Fundamentally based on great customer service, Sternfenster is one of the largest trade manufacturers in the UK, and growing still. Policies such as the “no-nonsense 24 hour remake”, as the MD himself likes to call it, have helped Sternfenster develop a reputation for going “the extra mile”, and enabled it to steadily grow into manufacturing over 2000 frames per week today.

It is the fabricator’s high volumes, and its efficient processes, that enable it to offer some of the best prices on the market for top quality products.

Comprehensive Product Range

Sternfenster offers a very comprehensive range of products, all of which are manufactured in-house. Aside from StyleLine and the full range of Smart Aluminium, including bi-folds and shop fronts, Sternfenster also supplies Spectus vertical sliders, sealed units and DoorCo and Solidor composites as entrance or stable doors. Its Deceuninck 2500 & 2800 frames can be supplied in a variety of woodgrain foils, as well as any RAL colour, thanks to Sternfenster’s in-house paint spray booth.

An Easy Choice

The fabricator has recently invested in a new cutting and prepping machine costing close to half a million pounds, to further improve productivity and sustain the level of growth expected for the year ahead.

Mike said: “We know how important it is to offer both a complete product package, as well as a flexible service to our customers, which is why we manufacture everything in-house and have full control over the products we supply. This also allows us to maintain our prices at a very competitive level while never compromising on quality.

“On top of that, getting a quote and placing an order with us could not be easier – you can even do it online, through the Easy Admin function on our customer portal, Sternfenster Plus. Our added value services further contribute to pushing Sternfenster at the top of the list when it comes to choosing the right trade fabricator,” concluded Mike.

Related Posts


Alitherm 300 Window

Here at Sternfenster, we manufacture our aluminium home improvement products to the highest possible standards. This cutting edge design process ...


Visoglide Patio Doors Made For The Trade

Our aluminium patio doors are made with the newest cutting-edge technology; ultra slim, precision mitred aluminium provides a strong but sleek ...


Sternfenster Roundtable On Sustainability

We hosted a roundtable in January to discuss the importance of manufacturing windows and doors sustainably, and to share best practice when it ...

  • Postcode
  • Name
  • Contact Details

Find Your Nearest Approved Installer

Our network of approved installers guarantees you the best service and highest quality products.

Enter your Location

Enter Your Name

Enter Your Contact Details