White double glazed upvc windows

Double Glazed Flush Casement Windows

Treat your home with our popular uPVC flush casement windows. A striking alternative to our regular casement windows, they’re built so the sash sits flush within the frame, for a sleek and efficient look. 

Our flush casement windows come from renowned experts DWS and have an understated, classical vibe that makes them a natural choice for heritage or period properties. They won’t compromise your aesthetic, but they will make your home safer and warmer than ever.

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double glazed flush windows

Replacing Timber With uPVC

If you have old, draughty wooden windows, replacing them with uPVC is a great option. It’s sturdier and more weather-resistant, so won’t warp or swell as the temperature changes. uPVC windows don’t suffer from rot and are easy to maintain; they only require occasional cleaning to keep looking their best. 

DWS windows can also be adapted to replicate the look and feel of classic timber. Their exceptional Eurocell profiles give you that same texture but at a more reasonable price and with better home security. Ask us about our woodgrain finishes, many people can’t tell them apart from real wood. 

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Key Features


Excellent Energy Efficiency, U-values As Low As 0.8 W/m²K

Our flush casement windows are rated A++ for energy efficiency and can achieve incredibly low U-values. They’ll retain heat and make it far easier to keep your house warm.


Weather-Resistant And Reliable


Attractive And Sleek Frame Designs


Ten-Year guarantee


Wide Choice Of Colours

flush casement windows with double glazing installed in a house

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Frequently Asked Questions

Do Flush Casement Windows Open Inwards Or Out?

Typically, flush casement windows open outwards. They can be adjusted to open inwards if you wish.

Are Flush Casement Windows Environmentally Friendly?

What Are Your Lead Times On Flush Casement Windows?

Can I Add Fly Screens To Flush Casement Windows?

How Long Do Flush Casement Windows Last?

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