Complete Colour Customisation

Pick from our range of colours

Our patio doors are available in one of the many stunning colour finishes that Liniar offer. This includes more subtle shades, as well as high quality woodgrains that allow these to suit older properties. With something for everyone, you’ll struggle to find a topcoat that wouldn’t fit your home.

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.

Patio Doors

Patio doors are a fantastic back door alternative for a Buckinghamshire home. Operating on an inline slider, patio doors move by having one of the panes move to the left or the right within their framework. They come with wide-spanning glazed panels coupled with high grade Liniar uPVC. With this, they provide the perfect modern performance while also providing a practical means of exit.

They can be fitted directly to your home’s original architecture, replacing your current back door or as an addition. However, patio doors can also be fitted to an orangery or conservatory, allowing you to open your extension into any outdoor social space you have. What’s more, patio doors can even be fitted internally to split one larger room into two smaller ones, should you desire.

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Features & Benefits

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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.

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When you choose a Liniar patio door, you can opt for between two and four panes of varying lengths. There’s something for everyone.

Yes! Despite containing metal reinforcement, these patio doors are actually still completely recyclable at end of life.

Patio doors are often less expensive than other back door alternatives, such as bifolds. Contact us for a more accurate cost.

The profile for these patio doors is uPVC, supplied by the market leaders, Liniar.

Yes, these doors are. Their low threshold as standard allows them to exceed the requirements set out by this regulation.

Get in Touch

We are more than happy to provide quotes for any of our double glazed products over the phone. Leave your details on our online form, and we’ll get in touch as soon as we can. If you have any immediate questions, call us directly on 01494 873399.

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