Important Notice From Sternfenster

As of 30th October, we will no longer be offering roof lanterns as part of our product offering. Please be assured that orders placed before this time will still be fulfilled. We are still offering all other windows in our range. For more information, please contact us on or give us a call on 01522 512 525.

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

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Glass Sealed Units

Glass Sealed Units

Offer your clients one of the most extensive choice of glass options available from a window and door fabricator. These are available at short lead times and very competitive trade prices, allowing you to obtain higher margins and placing you ahead of competition.

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Glass Sealed Units

All our sealed units are made to measure to your requirements based on the glass type, size and any decoration specified. We have invested heavily in state-of-the-art machinery that enables us to supply a wide range of glass units for windows, doors and conservatories to satisfy your clients’ every need.

Glass Sealed Units Made To Measure

Toughened Glass Sealed Units

With an on-site toughening plant and two fully automated glass lines, we can offer any glazing options from regular double and triple units, to specialist conservatory roof glasses, traditional Georgian bar features and one off bespoke stained glass windows

On-Site Toughening Plant

Bespoke Glass Sealed Units

With over 3,500 IGUs produced every week, we are sure we can offer you highly bespoke windows, doors and conservatories quick and at very competitive prices.

Bespoke Products At Competitive Prices

Glass Sealed Units

Our sealed units are made using a variety of high quality glass from Planitherm and come in all sizes, styles and designs. Manufactured in accordance with BS EN 1279, our IGUs come with a 5 year guarantee against condensation within the unit.

High Quality Glass

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