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Casement Windows

The UK’s most popular choice of window style, casement windows from RealSeal Home Improvements combine traditional design with modern performance to deliver the best of both. We can install them using either low-maintenance uPVC or sleekly-styled aluminium, resulting in a window that perfectly suits both contemporary homes and period properties alike.

Flexible casement windows to suit a plethora of property styles

Installed in either top-hung, side-hung, or bottom-hung configurations, our selection of uPVC and aluminium casement windows are specifically designed to suit all kinds of home. They can readily be tailored to fit most sizes of aperture, boasting slim sightlines to better let as much natural light as possible shine through. Regardless of your preferences, modern day casement windows are guaranteed to deliver.

Especially if your home is still suffering from ageing, weatherworn timber frames, every casement window installed by our team boasts a versatility and elegance, very much acting as a blank canvas in which to let homeowners add a personal touch. You’ll be able to enjoy a simple but effective style, all while futureproofing your home against intruders, the elements, and fashion trends.

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A rated energy efficiency

Saving money on energy bills and keeping properties comfortable


High security guaranteed

SAC multi-point locking as standard for peace of mind


Range of colours & styles

Highly configurable to create a wholly distinctive aesthetic

Unbeatable energy efficiency in either uPVC or aluminium

Thermally insulating and A Rated as standard, all our casement windows make a big difference in terms of the level of energy efficiency they introduce. An acute combination of multi-chambered internal frames and additional glazing methods help the frames to better trap heat, letting you rely on artificial heating methods less, so as to save money on bills and keep you comfortable 365 days a year.

Casement windows are available in both uPVC and aluminium frames, with both touting their own unique benefits and advantages. uPVC is favoured by those who want a low-maintenance and affordable casement window solution while aluminium gives off a more contemporary look and remains strong to accommodate thicker glass panels.

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Long-lasting and easy to maintain in all shades and colours

A wide palette of attractive colour finishes help to make your home infinitely more personable when compared to other homes in the street, making it easier for every casement window replacement to feel natural. As well as conventional colours like Red, Chartwell Green, and Bright White, we can even finish every casement window in a traditional woodgrain foil. Giving homeowners the ability to enjoy historical style, without the historical drawbacks.

The good thing about the modern materials used within uPVC and aluminium casement windows regardless of colour, is that all are engineered to be long-lasting, robust, and endure the harshest of elements. This means that when opting for an upgrade by the RealSeal Home Improvements team, you’ll be making a long-term investment that will benefit your home for many years to come.

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