Windows & Doors

NK uPVC Products is the Island’s leading name in high performance PVC window and door systems. NK uPVC Products windows and doors are available in a range of styles and designs to suit every application including social housing, private house building, commercial buildings, schools and hospitals. They all share one thing in common – stylish good looks and outstanding thermal and weather performance.   As we Delve a little further you’ll discover the unbeatable technical performance that makes Spectus our preferred choice – from leading commercial builders to the discerning homeowners like you.

Our homes are recognised as being the most significant investment we’ll make and whether we’re looking to create a sanctuary, an energetic family hub or a stylish home, at some point, we’ll want to improve that space. Finding a solution that’s right, from a provider you can trust is the first step in achieving your vision.

Spectus Window Systems have been designing, extruding and distributing high quality 10 Year PicturePVC-U window, door & conservatory systems for more than 25 years. Widely recognised and having the best and most complete product range in the market – Spectus systems have been installed in millions of properties, from the most charming period cottages to the largest modern homes.

Whether your aim is to expand, refurbish or restore your property to its former glory, rest assured, with Spectus Window Systems your investment is in safe hands.BS Standards Picture



From its state of the art extrusion plant, Spectus is one of the largest manufacturers of high quality PVC-U products. Recognised as having the most comprehensive range in the market, Spectus offers a complete range of conservatory, door and window parts, Colour Chart Pictureincluding Casement, fully Reversible, Tilt and Turn and Vertical Sliders. All available in a wide range of colours and woodgrain foil finishes.

All this with thermal efficiency as standard. Spectus A Rated Picture
Spectus Window Systems will provide you and your business with the complete solution, ensuring simplicity in fit, consistency in quality and outstanding back up and support.

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Spectus Doors Brochure

Spectus Vertical Slider Brochure

Spectus Reversible Brochure

Spectus Conservatory Brochure

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