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Klosen – Slimline Aluminium Windows

Elegant and luxurious slimline windows are engineered with purpose to create a stylish, modern and sophisticated entrance way to your home. Aluminium framed sliding doors open up space and flood your property with natural light.


Key Features & Benefits

Thermal Insulation

The material has built-in thermal properties which will improve heat insulation for your home.

Natural Light

A thin frame and maximized glass will enable a source of natural light into your home, making your rooms brighter.

Aesthetic Design

The slimline range will integrate a beautiful aesthetic with traditional surroundings that will make your home contemporary.

Strong & Seamless

Aluminum is a strong & lightweight material which will allow a smooth but sturdy function.


Slimline Windows utilise sleek frames that imitate the look and feel of original steel windows. They offer complete or partial glazing without the need to modify the nature of the property – our windows become a part of your home.

Sitting comfortably with the contemporary lifestyle, our slimline windows bring uniqueness to your home. With minimal framing, our slimline windows can transform your sanctuary by inviting in more natural light and turning a good view into a fantastic one.


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Our slimline windows offer inherent durability. Their stunning thin frames are no compromise to the strength offered making them ideal for your home and other architectural projects.

By investing in our slimline windows you face minimal maintenance to prolong the lifespan of your windows. The minimal structure sits harmoniously within your home, creating a haven of spaciousness. Slimline windows will revolutionise the way you see your property.

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Types of Slimline Windows we Offer

If you are sure about opting for a slimline window in your home, we also offer slimline sliding doors. These are designed as part of the collection and will provide the finishing touch to your home. Both are designed to be effortless and we work with a variety of brands to bring you the best aluminium doors on the market.

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Get in touch with us today to receive your free quotation!