Complete Colour Customisation

Pick from our range of colours

Our flush casement windows are available in a broad array of different colour finishes. This ensures that these authentic wooden replicas unify with the rest of your existing architecture. Choose from stunning woodgrains as well as classic colours including White, Cream and Chartwell Green.

Choose a colour!
Agate Grey
Anthracite Grey
Chartwell Green
Agate Grey
Golden Oak
Irish Oak
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Energy Efficiency & Environmentally Friendly

100% Lead-Free

By working with Liniar products, our entire window and door range is fully lead free. There is no lead used in the profile itself or throughout the actually manufacturing process. Such a unique, eco-friendly process is unheard of with other manufacturers.

Lower Carbon Footprint

Both the profile and the glazing we use offers fantastic thermal insulation as standard. With improved heat retention, you may not need to have your heating on as high in winter. Doing so can see you improve your carbon footprint over time.

100% Recyclable

The uPVC profile used for our Liniar windows and doors is made from fully recyclable materials. Despite this, they still deliver superb thermal and security performances across the board, standing toe to toe with new profiles from other manufacturers.

Energy Efficient Profile

All our Liniar uPVC windows and doors are fantastically energy efficient. The multi chambered uPVC profile retains the maximum amount of heat, adhering to the latest regulations. Your home will sit at the optimal temperature during winter.

Flush Casement Windows

Flush casement windows are fantastic renovation for older properties throughout Buckinghamshire. As their name would suggest, the main profile of these windows sits level with the exterior of the framework, rather than naturally protruding as a traditional casement frame would. This allows them to deliver striking, unique aesthetics.

Flush casement windows are manufactured using traditional joinery techniques, allowing them to authentically replicate timber profiles, despite being extruded from Liniar uPVC. This allows them to offer classic aesthetics while delivering the optimal modern performance. You can refurbish an older property without compromising on the period charm.

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Features & Benefits

Complete Glass Customisation

Our flush casement windows are available with a range of decorative finishes for you to choose from. With this, your new windows will be fully tailored to you, thanks to the combination of the glazing finish, topcoat and configuration. Find a glazing style you like or contact us for more information.

Charcoal Sticks
Half Timber Ali Image

Available in Aluminium & Timber!

Castle Glass work with industry leading supply chains to install high quality aluminium and timber products across the Buckinghamshire area. Explore our individual timber and aluminium pages today for more details about these two stunning products.

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Maximum Security

Hidden Attack Lock

Ultion locking systems come with unique technology that will detect if an intruder is attempting to gain unwanted access through the window or door. When activated, a hidden firing pin secures the central cam, fully preventing any forced entry into your home.

£1,000 Security Guarantee

The Ultion locks fitted to your new windows or doors are supported by a financial guarantee. If an unwanted intruder does manage to break-in, you’re entitled to compensation of up to £1000. The chances of this ever happening is extremely thin, however.

Drill Protection System

20 hardened steel pins are fitted into an Ultion lock as standard. They are precisely and individually positioned to specifically prevent an unwanted intruder from using an electric drill to get into your property. No other lock on the market can offer the same.

Secured by Design

Our windows and doors can reach Secured by Design requirements when they are fitted with Ultion locks. A scheme supported by the UK police, it lays out the minimum standards for competent home security. Our products comfortably exceed these.

Hardware Options

Monkey Tail
Tear Drop

View the brochure


Typically, flush casement windows are better suited to more traditional properties, and we therefore encourage other styles with modern homes.

You can find out how much these windows cost by using our online quoting engine today – it’s completely free to use!

Although they appear to be from timber, flush fitting windows are instead made from modern uPVC, instead of authentic wood.

The profile of these windows has a sculpted finish as standard. A chamfered finish is available with our other window styles.

Yes! Flush casement windows from Liniar come without any lead in the frame and help lower your carbon footprint through thermal retention.

Get in Touch

We are still more than happy to speak to you over the phone and provide quotes that way. You can leave your details and product dimensions on our online form, and we’ll get back to you as soon as we can. Alternatively, you can call immediately on 01494 873399.

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