Cortizo Sliding Doors

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Upgrade your home with Cortizo sliding doors, engineered for sleek design, smooth operation, and long-lasting performance. Available in a variety of sizes, frame colours, and glass options, these premium aluminium sliding doors suit any modern interior or exterior space.

Cortizo sliding doors maximize natural light, create seamless indoor-outdoor living, and are perfect for extensions, conservatories, or open-plan living areas. Built for durability and energy efficiency, they deliver both style and practicality.

Choose your Cortizo sliding doors today and enjoy free UK delivery along with flexible buy now, pay later options.

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Cortizo Sliding Doors, All Sliding Doors

Cortizo 4700 Sliding Doors 2 Sash
From £1,944.79£1,620.66 Inc. VATEx. VAT

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Cortizo Sliding Doors, All Sliding Doors

Cortizo 4700 Sliding Doors 3 Sash
From £2,330.43£1,942.03 Inc. VATEx. VAT

Select options This product has multiple variants. The options may be chosen on the product page
Cortizo Sliding Doors, All Sliding Doors

Cortizo 4700 Sliding Doors 4 Sash
From £2,951.56£2,459.63 Inc. VATEx. VAT

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Cortizo Sliding Doors, All Sliding Doors

Cortizo 4700 Sliding Doors 6 Sash
From £4,613.00£3,844.17 Inc. VATEx. VAT

Select options This product has multiple variants. The options may be chosen on the product page

Slim, Modern & Elegant Sliding Doors

Transform your home with our sleek aluminium sliding doors, designed to deliver beautifully slim sightlines and maximum glass area for uninterrupted views. These contemporary sliding patio doors combine style with strength, making them the perfect choice for any modern living space.

Choose from a range of stock colours available on short lead times, or opt for bespoke finishes to match your project perfectly. Each aluminium sliding patio door features slimline, colour-matched trickle vents that maintain clean aesthetics without unnecessary framing or extra cost.

For the finishing touch, our exclusive Korniche handles and locking systems come in a selection of premium finishes, blending design, security, and functionality into every detail.

Fast, Simple & Stress-Free Installation

Our aluminium sliding doors are designed for effortless installation and a perfect fit every time. With innovative clip-in glazing beads, there’s no need for messy wedge gaskets—saving valuable time on-site while maintaining a clean, professional finish. The unique SpeedBead design allows easy removal and refitting without marking the frame or damaging the coating.

Each sliding patio door arrives pre-assembled and ready to glaze, featuring precision-engineered mitred corners that are bonded and crimped for lasting strength. For oversized or triple glazed patio doors, our dedicated delivery service ensures safe handling using crane-equipped vehicles when required.

Comprehensive packaging and a detailed installation guide make fitting your aluminium sliding patio doors quick, efficient, and hassle-free from start to finish.

Strong, Secure & Built to Last

Our aluminium sliding doors combine sleek design with exceptional strength and security. Each system is PAS 24 certified, featuring dual shoot-bolt locking points and fibre-reinforced guides for dependable protection. The advanced anti-backdrive locking system prevents tampering or forced entry, even when unlocked, offering total peace of mind.

A low-angle ergonomic handle allows smooth operation with just a 120-degree turn, while stainless-steel fixings, hardened wheels, and sealed rail bearings deliver effortless gliding and long-term durability. Every detail of these sliding patio doors is engineered for performance—ensuring your exterior sliding doors not only look beautiful but stand strong against time, weather, and wear.

Thermally Efficient

Our aluminium sliding patio doors feature wide polyamide thermal breaks and fully insulated profiles for superior energy performance. High-grade EPDM and brush-pile seals prevent drafts and heat loss, while triple-glazed options maximise insulation — keeping your home warm, quiet, and efficient all year round.

Frequently Asked Questions

What is a 47mm Mullion on Cortizo Sliding Doors?

The mullion is the slim vertical frame that separates the panes of glass on a sliding door. The Cortizo slimline sliding door system features an ultra-slim 47mm mullion, creating sleek sightlines and maximising natural light. Most sliding doors on the market have an 85mm mullion, making Cortizo’s minimalist design a clear standout for contemporary homes.

What sizes are available for Cortizo Sliding Doors?

Our Cortizo sliding doors are made to measure and can be custom-built to any size. Whether you need large-scale panoramic doors or smaller openings for a renovation project, we can tailor the system to meet your exact requirements. If our standard sizes don’t fit your project, simply contact our team for a bespoke quotation.

How do I measure for Cortizo Sliding Doors?

To measure accurately, take the full width and height of your structural opening, then subtract 10mm to allow for installation tolerances. For detailed guidance, download our measuring guide or speak to our expert team for professional advice before ordering.

What warranty do Cortizo Sliding Doors come with?

All Cortizo aluminium sliding door systems come with a 10-year manufacturer’s warranty, providing long-term peace of mind. This covers structural integrity and performance, ensuring your doors deliver lasting beauty, strength, and functionality for years to come.

Receive exclusive discounts subject to approval*

Discount automatically applied at checkout for customers who have a trade account. Please note your application is subject to approval and must be authorised before you receive your trade discounts. Conditions apply.

Cortizo 4700 Sliding Doors 2 Sash

Cortizo 4700 Sliding Doors 3 Sash

Cortizo 4700 Sliding Doors 4 Sash

Cortizo 4700 Sliding Doors 6 Sash

Slim, Modern & Elegant Sliding Doors

Fast, Simple & Stress-Free Installation

Strong, Secure & Built to Last

Thermally Efficient

Frequently Asked Questions