Complete Colour Customisation

Pick from our range of colours

Our bow and bay windows are available in a plethora of colour finishes, with something for every taste. This includes authentic woodgrains as well as traditional blacks, whites and creams. The foil you choose will be coloured throughout the window too, promising a unified finish.

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.

Bow and Bay Windows

Here at Castle Glass, we offer bow and bay windows to homeowners across Buckinghamshire. These two distinct styles of window are incredibly similar in design, sitting as a set of profiles that protrude away from your home’s existing architecture. Created by aligning three or more casement windows next to each other, they come with a wealth of creative options.

Bow and bay windows are most commonly seen on slightly older properties from the mid-20th century. However, thanks to their range of unique, practical benefits, they are fast becoming a popular retrofit option here in the UK. Designed with quality, in-house built glazing and a modern Liniar uPVC profile, they are fantastic renovation option for homeowners.

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Features & Benefits

Complete Glass Customisation

When you choose a Liniar bow and bay 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.

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


Bow windows protrude much more smoothly away from the home, whereas bay windows often sit at a more distinct angle.

As a wider set of windows, they are naturally pricier than a single casement. However, they are still reasonably priced at Castle Glass.

All Liniar window profiles are extruded in Derbyshire. We also produce our glazing in-house, meaning this product is entirely British!

Yes, they are. There is no lead within the frame of our bow and bay windows, and the manufacturing process if lead free as well.

In addition to decorative enhancements, our glazing is available in 28mm double or 36mm triple glazing options for you to choose from.

Get In Touch

If you’re interested in getting an estimated price for one of our stunning composite doors, then use our online quoting engine today. It’s free to use and tailored to your bespoke design.

If you’d prefer, we are happy to provide estimated prices for our composite doors over the phone. Just leave your details on our online form, and we’ll contact you as soon as we can. For anything immediate, call Castle Glass today on 01494 873399 .

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