Complete Colour Customisation

Pick from our range of colours

Our Liniar casement windows come with a plethora of colour choices for you to select from. Bespoke RAL colours are available, as well as a range of high performance woodgrain foils as well. There is something for every style of home, allowing us to cater to all customers here in Buckinghamshire.

Choose a colour!
Agate Grey
Anthracite Grey
Chartwell Green
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.

Casement Windows

Casement windows are Buckinghamshire's most popular style of double glazing. This versatile profile covers more window configurations than any other, allowing them to cater to just about every function and need. What’s more, they perfectly blend with modern and traditional homes alike, thanks to stunning visuals and a range of customisation options.

Our casement windows are constructed with a uPVC profile and are extruded by Liniar. By working with such a reputable name, homeowners like yourself know you’re guaranteed quality, leading to the ultimate modern performance. Each casement frame comes with robust hardware and thermally efficient double glazing as standard.

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Casement Windows Buckinghamshire

Features & Benefits

Complete Glass Customisation

When you choose a Liniar casement window, you'll be able to opt for one of many decorative glazing styles. This means, for the ultimate visual appeal, you can choose from a range of frostings and designs that can enhance the aesthetics of your home. These are particularly useful if you're having new bathroom windows fitted or are looking for a specific styling.

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


Every casement window manufactured by Liniar has been built in the United Kingdom. More specifically, they have all been extruded in Derbyshire.

Our casement windows are designed to be completely lead free, while also being manufactured using a process that is also void of all lead.

You’ll be able to choose the panel configuration, hardware, handles and colour finish when you choose Castle Glass for your casement windows.

Yes, these frames are available with a child restrictor upgrade. This prevents the door from being opened further than a few inches, for complete peace of mind.

To get a free price for these casement windows, simply leave your details on our online form or use our online quoting engine today. It’s that simple.

Get in Touch

We at Castle Glass are more than happy to provide casement window prices over the phone. You can leave your details and product specifications on our online form, and we’ll get back to you. You’re also welcome to call us directly on 01494 873399 .

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