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Why Choose Logik uPVC Casement Windows from TWR Group?

When it comes to superior performance, security, and thermal efficiency, TWR Group’s uPVC casement windows stand out. Combining an attractive aesthetic with high functionality, these windows are designed to upgrade any building. Discover what sets them apart from the rest.

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A superior performing casement window

With superior security and thermal efficiency, our uPVC casement windows marry an attractive aesthetic with high-performance, ensuring they complement any property.


Available in a range of sizes, including side-hung and top-hung opening with any combination of panels, styles and colours to match any residential or commercial building.

Security Assured

Logik uPVC casement windows offer exceptional security features to protect properties and withstand the wear and tear of everyday use.


Choose from two distinct frame styles: Chamfered or the more sculptured Ovolo finish.

Thermally Efficient

Logik uPVC casement windows features an advanced multi-chambered design and innovative use of uPVC thermal inserts to enhance thermal performance, with U-Values as low as 0.8 W/m2k.

Eurocell Logik Windows

The perfect casement window for your next installation

There’s a reason why our Logik casement windows, using Eurocell’s 70mm profile system, are a firm favourite with installers. They are the perfect choice for both traditional and contemporary residential designs and perfect for replacement or new build projects. Another huge attraction is they are rapid to install, meaning less time onsite.
Featuring a slimmer frame than many uPVC window systems, Logik casement windows provide a bigger glass area as a result, meaning sleek sightlines that will allow more natural light to flood into the property. Installers can also make them as bespoke as they need as they are available in a range of sizes, including side-hung and top-hung opening, styles and colours, so they are perfect for winning new business.

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Sustainability and Eco-Friendliness with TWR Group

At TWR Group, our commitment to sustainability is reflected in our recycling practices. Logik uPVC casement windows are crafted from 100% recycled material. Eurocell recycles millions of PVCu frames annually, ensuring a closed-loop recycling system. Given that PVCu can be recycled up to 10 times, these windows are a truly eco-friendly and sustainable option.

Inside the TWR factory, shot of the PVCu framing
Inside the TWR factory, showing a uPVC door being worked on

Customisation at Its Best

TWR Group understands that each trade project has unique requirements. Our extensive customisation options ensure that your Logik uPVC casement windows are perfectly tailored to your specific needs:

- Various Colour Options: Choose from a broad spectrum of colours to match a property’s aesthetic.
- Glass Options: Including double glazing & triple glazing.
- Hardware Finishes: Personalise your windows with different hardware finishes, enhancing the unique look and feel of your space.

FAQ: Logik uPVC Casement Windows

Below are some frequently asked questions about Logik uPVC casement windows, which deliver market leading sustainability, energy efficiency and technical performance. Find answers to common queries regarding its features, functionality, and usage.

What is the difference between the Chamfered and Ovolo frame?

Chamfered casement windows feature a straight edge style for a contemporary aesthetic, whilst Ovolo casement windows feature decorative sculpted beading for a more traditional look.

What makes the Logik uPVC casement window so secure?

Logik uPVC casement windows are tested to PAS24 and Secured by Design enhanced security standards while interna beading means glazing units cannot be removed from the exterior.

What makes the Logik uPVC casement window so thermally efficient?

The advanced multi-chambered design and innovative use of uPVC thermal inserts lock in heat and allow a WER energy rating for double glazed units of A+13, A+20 for triple glazed units, and U-Values as low as 1.2 W/m2k with double glazed units and as low as 0.8 W/m2k with triple glazed units.

Are Logik uPVC casement windows a sustainable option?

Our uPVC casement windows are made from 100% recycled material and are an affordable environmentally friendly option. Eurocell recycles millions of PVCu frames every year and that is close-loop recycled into new PVCu windows and doors. As PVCu can be recycled up to 10 times, it is a truly sustainable option.

Do Logik uPVC casement windows provide excellent weather performance?

They are tested to BS 6375-1 covering air permeability, water tightness and wind resistance. Additionally, PCE gaskets offer exceptional air tightness and weatherproofing.

Eurocell Logik Windows

We have been using TWR since we started our company in 2014. They have always given a friendly and efficient service so I would have no hesitation in recommending them to other installers.

Cumbria Windoworks

Having worked with TWR for over eight years and purchasing all our commercial and aluminium products from them I can’t recommend them highly enough. They provide us with high-quality windows and doors efficiently and at a very competitive price

Everglade, Manchester

We have worked with TWR for 10 years, the product supplied is nothing short of excellent, and the enquiry stage is smooth all the way through to the aftercare. Commercial or domestic TWR will advise on and support you through ordering!

TWG, Lincoln

Dealt with Terry and Dawn, simple and to the point ordering of windows and aluminium Bifolds. Very helpful and honest.

Can recommend to anyone!

Dan C