Flush Casement Windows

Designed to replicate classic timber windows, our Flush Casement Windows fuse traditional aesthetics with modern materials to create a look that's charming whilst being secure and energy efficient.

At Three Counties, we supply and fit a fantastic range of flush casement windows throughout Surrey, Berkshire and Hampshire. Flush Casement Windows are one of our most popular double glazing window options; with so many different designs and colour choices available combined with low maintenance, high security and energy efficiency our windows provide the perfect solution to enhance and add value to your property whatever style it may be.


Choose flush casement windows for your new or replacement windows and you can make your home more stylish, secure and energy efficient! Our range of products outperform many other window systems available on the market thanks to their innovative design - allowing for superior energy efficiency to keep you cool on hot summer days and warm in the colder months.

Whatever style you choose, you'll find that casement windows from Three Counties aren't just pleasing to the eye, they're practical too. While still retaining the look and feel of traditional timber windows; they are virtually maintenance free.

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Features and Benefits

  • Energy Rated Windows - Reduce your heating bills!
  • High-security performance
  • Lower maintenance than traditional timber windows
  • 'A' Rated energy rated glazing - as standard!
  • High acoustic performance - Reduce unwanted noise
  • Available in a wide choice of colours and styles – retain the look and feel of traditional timber windows
  • Maximum performance triple glazed windows available
  • Each product is tailor-made to order
  • Free Comprehensive Guarantee
  • Finance options available
  • Products made to measure

the evolution flush casement window

Three Counties Ltd are proud to be trusted fitters of Flush Casement Windows from the Evolution range, one of the slimmest windows on the market for a greater glazed area, with wood effects detailing across the whole frame you can attain the look of wood without the painstaking sanding and painting every 5 years.

Evolution Flush Casement Windows are virtually maintenance free, these windows have been developed based on authentic, traditional design and create a stunning feature point for any home, ideally to homes that are replacing timber flush windows, or those wanting to keep traditional looks, with a fuss free and clean design finish.


THE Residence 9 Flush casement window

Residence 9 is a premium window system designed to replicate the 19th Century Flush Sash Timber Window. It can be considered for use in Conservation Areas due to its authentic appearance. The authentic design of this system can be designed to suit any style of property, available in a range of stunning colours and designs.

Residence 9 flush casement windows are based on designs found in heritage properties in towns, villages and cities; enabling you to replace your old windows and doors without losing the character of your home. The composite system is virtually maintenance free meaning no more painting and staining.


The innovative design allows you to retain the character of your property, whatever style it may be – letting you enjoy look of traditional timber windows without having to suffer the ongoing maintenance that comes with them

If you would like to find out more about our popular range of Flush Casement Windows and energy rated double glazing you are always welcome to visit our showroom at Kendall Court, Camberley where we would be delighted to answer any questions you may have, discuss your requirements and provide a free, no-obligation quote, alternatively, please give us a call on 01252 414800 and a member of our team will be happy to help.