Cortizo 4700 Aluminium Sliding Doors

At External Doors Online our Cortizo 4700 Aluminium Slimline Patio Sliding Doors are available in a range of smooth standard colours, with the option of choosing a different colour for the interior to help you create the look that is perfect for your property. Bespoke smooth colours can also be ordered to accent, or match your particular project requirements. With a slimline 47mm mullion, our Cortizo 4700 Sliding Doors offer contemporary styling and robust performance, whilst delivering superior thermal performance. With prices starting from £1695 inc VAT and free delivery, with ead times of 10-15 working days our Cortizo 4700 Slimline Sliding Doors are the perfect choice for any project. Use our door designer to create your own unique design, obtain an instant live price and order online in seconds.

Design & Order Online

Cortizo 4700 Slimline Aluminium Sliding Door main

Why choose Cortizo 4700 Slimline Sliding Doors?

Slimline Mullion ▷ 47mm Sightlines

Easy Install ▷ Delivered Pre-Glazed

Configurations ▷ Double & Triple Track Options

High Security ▷ Multi Point Lock Mechanism

Added Security ▷ High Security Cylinder

Thermally Efficient ▷ Argon Toughened Glass (standard)

Lead Time ▷ 15-20 Working Days

Prices From ▷ £1695.00 inc VAT & free delivery

Design & Order Online

Cortizo 4700 Slimline Aluminium Sliding Door FAQs

The mullion refers to the vertical piece of frame that separates the sliding door panes. With our slimline Cortizo doors the mullion is only 47mm creating a aesthetically pleasing look. Compare this to most sliding doors on the market with an 85mm mullion, this door stands out from the rest.
Any! We can make sliding doors to any bespoke size. If our standard sizes do not meet your requirements contact us for a bespoke price.
Measure your complete opening height and width. Take these measurements and subtract 10mm to allow for fitting tolerances. Please see our full measuring guides for more information
Unfortunately we do not offer installation, we are a supply only company. All of our products are supplied with full fitting instructions.
We offer a 10 year manufacturers warranty on all of our aluminium sliding door systems.

Cortizo 4700 Slimline Aluminium Sliding Doors Explained

From parts, options and components, to measuring and installation guides, click through the tabs below to learn everything you need to know about Cortizo 4700 Sliding Doors before placing your order.

Cortizo 4700 Slimline Aluminium Sliding Door view

Weather Performance

The strong, thermally efficient aluminium frames create large glass areas that blend the outside with indoors without compromising on weather performance. Our Cortizo 4700 Slimline Aluminium Sliding Patio Doors have been tested to the highest standards within water and wind resistance and air-tightness. Our patio doors offer excellent insulation qualities which effectively reduce energy and heating costs. They are extremely low maintenance and provide a cost-effective solution to any home improvement project.

Cortizo 4700 Slimline Aluminium Sliding Door internal

Energy Rating

Our Cortizo 4700 Slimline Aluminium Sliding Patio Doors have not only been designed with looks in mind but performance and efficiency too. Each frame incorporates a ‘thermal-break’ to insulate the doors against heat loss, raise the internal temperature of your home and help reduce the risk of condensation. The thermal break allows the doors to achieve u-values as low as 1.4 W/m2K.

Cortizo 4700 Slimline Aluminium Sliding Door triple double

10 Year Peace of Mind

With all External Doors Onlines Cortizo Slimline Sliding Patio Doors we offer a 10 year manufacturers guarantee as standard. We strive to ensure that our quality is assured but having a 10-year guarantee offers peace of mind for years to come.

Cortizo 4700 Slimline Aluminium Sliding Door view left

High Security as Standard

The doors come with toughened glass as standard making it virtually shatter-proof. This isn’t just for the safety of your family at home, it would also take a significant amount of time to break-through. The security of our patio doors is assured by multi-point lock mechanisms on the main opening panels. We also offer a PAS 24 security upgrade package for total peace of mind.

Sliding Door Measuring Guide

The width and height of your the sliding door you need to order, is the structural opening size minus a fitting tolerances.

We recommend you allow a 10 - 15mm fitting tolerance between manufacturing sizes and the smallest width and height dimension (please see images).

Use a large spirit level and measure the cross corners of the aperture to ensure the opening is square and true.

Take three width and three height measurements and minus 10 - 15mm from the smallest measurement measured on each dimension to determine the actual required manufacturing size of your door.

E.g., Structural opening 3015 x 2115mm, recommended size to order 3000 x 2100mm.

Please note that when ordering your sliding doors the overall dimensions includes all components e.g. cills and add ons.