uPVC Flush Sash Casement Windows

Most of the windows you see when you look around are designed with either the popular chamfered or ovolo frames. Now, there’s a third style to choose from – the PVC flush sash frame. Like the name suggests, these windows offer a smooth, flush fitting appearance when closed, with no lip between the outer frame and the sash. When finished in Grey, the result is a modern, streamlined look that’s growing in popularity, especially in more modern home designs. For a more traditional timber look choose a woodgrain finish to perfectly complement the aesthetics of your property. This high performing system is capable of achieving A++ rated windows, with the ability to offer u-values as low as 0.8, helping to keep your home warm and reduce your energy bills. At External Doors Online we offer some of the UKs most competitive prices starting from £65 inc VAT and free delivery. With standard lead times of 5-10 working days our PVC flush sash casement windows are the perfect choice for any project. Use our window designer to create your own unique design, obtain an instant live price and order online in seconds.

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Eurocell Logik uPVC Flush Sash Casement Windows

Why choose uPVC Flush Sash Windows?

Flush Streamlined Aesthetics

U-Values as low as 0.8

A+ & A++ Thermal Ratings

Huge Range of Colours

PAS24 Security Compliant

Side Hung, Top Hung or Fixed

Delivery as Quick as 5-10 Working Days

Prices From ▷ £65.00 inc VAT & free delivery

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PVC Flush Sash Casement Windows FAQs

Yes. Our windows are some of the highest preforming PVC windows on the market. With standard double glazing our windows achieve a U-Value of 1.2 and an energy rating of A+. An upgrade to triple glazing sees these windows achieve an energy rating of A++ and an exceptional U-Value of 0.8.
All of our windows are made bespoke to your specific requirement. Use our online 3D designer to get an instant price for your bespoke design, and order online today!
Fixed Pane Max Sizes
Width - 2100mm
Height - 2100mm
**Please note that dimensions cannot exceed 1400mm in both directions
Side Hung Max Sizes
Width - 850mm
Height - 1475mm
Top Hung Max Sizes
Width - 1200mm
Height - 1475mm
Our PVC windows are available in as little as 5 working days in the standard white. Other colours may vary in lead time.
Delivery is free of charge to most areas! Please see our lead time and delivery information page for more information.

PVC Flush Sash Casement Windows Explained

From parts, options and components, to measuring and installation guides, click through the tabs below to learn everything you need to know about uPVC Flush Sash Casement Windows before placing your order.

Modern Flush Appearance

The flush sash option offers a smooth, streamlined finish to any new build project. It’s also the perfect replacement window to give a contemporary upgrade to older homes.

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Eurocell Logik Flush Sash PVC Casement Windows

Leading Energy Efficiency

In a world with ever rising energy costs, it’s important to choose a window that will keep the warm in and the cold out. At External Doors Online we are proud to present the UKs market leading Flush Sash Casement Window systems, that can achieve u-values as low as 0.9 and thermal ratings of A++.

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Protect Your Home

Your windows play a crucial role in securing your home against unwanted intruders. In addition to being secure, they need to be robust and durable enough to withstand the wear and tear of everyday use – as well as everything the British weather can throw at them, which is why our Flush Sash PVC Windows are tested to BS 6375-1 covering air permeability, water tightness and wind resistance

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Endless Colour Choices

At External Doors Online, we offer a vast range of PVC window colour combinations from stock. From traditional rosewoods and oaks, to contemporary anthracite and slate greys, you can choose to perfect finish to complement your home.

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PVC Flush Sash Casement Window Measuring Guide

These guidelines are to help you measure for a new window and make an accurate measurement.

Measure the opening outside on both the height and width. Always measure the exact brickwork opening and not the old window frame.

Measure brick to brick in at least three different places and deduct 10mm from both the final height and width measurements to allow for 5mm fitting allowance around the new window frame. This will enable you to ensure the new frame sits plumb and square once in the aperture. Spacers and filler will then be required to secure the frame into place and fill any gaps.

Eurocell Logik uPVC Flush Sash Casement Windows measure

Please remember:

Do not measure your existing frame but measure the brick opening.
Measure in at least three different places and deduct 10mm from both the final height and width measurements - we do not make any fitting allowances on the sizes you provide.
Measurements will need to include the frame, cill and any frame extenders/add on’s required.
All dimensions to be supplied in metric and all styles viewed externally.

Transom Drop

The transom drop is measured from the top of the outer frame and down to the centre of the horizontal bar.

Mullion Width

The mullion is measured from the outer edge of frame to the centre of the vertical bar