Features & Benefits

Our Modus casement windows bring strength, security and the best performance in attractive styling. Explore just a few of the benefits of this exceptional system below.

Exceeds Government Regulations

Ultra low U-values of 0.8W/m2K make these casement windows a firm customer favourite.

Fast to Install

Save time with multi chambered casement windows that are 20% lighter than similar systems.

Extensive Range of Colours

Suitable for heritage or modern architectural designs, we offer casement windows in an extensive range of colours.

Weatherproofing Qualities

A timber alternative, our PVCu casement windows are exceptionally durable and built to withstand warping and rot.

Seamless Designs

Our Modus casement windows have a seamless finish. We utilise the latest manufacturing techniques.

Recyclable Material

Save on waste with fully recyclable PVCu material. Modus casement windows are a sustainable option.

Kubu smart hardware Kubu smart hardware Kubu smart hardware
Kubu smart hardware

Works with Kubu

We offer Kubu-ready casement windows and entrance doors, allowing you to provide highly secure, convenient smart hardware to your customers.

Glazing, Finishes & Specifications

Glazing & Obscure Glass Options

Modus casement windows can accommodate both double and triple glazing.

Oak CU

Swatch Options



Our Modus casement windows have been tested for air tightness, weather resistance and thermal performance. Please refer to our downloads or get in contact for any questions regarding minimum and maximum sizes.

Performance And Accreditation



1.4 W/m²K


0.8 W/m²K


Class 4 (600 Pa)


Class 9a (600 Pa)


Class AE2400 (2400 Pa)


PAS 24





Profile Options

Modus Window Profile Options - Standard Sash

Standard Sash

Modus Window Profile Options - Slim Rebate Sash

Slim Rebate Sash

Modus Window Profile Options - Flush Sash

Flush Sash

Modus Window Profile Options - Mechanical Joint Flush Sash

Mechanical Joint Flush Sash

Trade Downloads Area

Gain access to our trade downloads area here. We aim to provide our trade customers with the advantage and connect with more clients. Use this link to download our latest documents, including brochures, order forms and all of our terms.

Start Your Online Quote

Modus Casement Window Media

Find all of the downloads, videos and brochures relating to our Modus casement windows. We’re well experienced at Unique Window Systems, so if you have any requests beyond what’s listed here, get in contact and we’ll be able to advise you further.

Modus Brochure pdf

Modus Specification pdf

Eurologik Trade pdf

Eurologik Installation Guide pdf

Eurocell Colours pdf


Discover More Today

See some of the most frequently asked questions that we receive. If there’s anything else you’d like to ask, please get in contact.

What areas do you cover?

We’re based in Leicester and supply nationally. Thanks to our size, reach and many years of experience, we are able to offer free quotes to our trade customers across the entire United Kingdom.

Is there a guarantee?
What other products do you supply?

Where next?

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Contact us with any questions you have about our products or services.

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