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Enliven your space
Don’t settle for dull spaces that feel cut off from the outside world.
Cortizo 4700 sliding 3 sash doors connect your home to the outdoors and invite natural light to create a calming atmosphere.
Minimally designed, their subtle elegance will transform any room, with each streamlined feature contributing to the sleek aesthetic.
If 3 sash isn’t the right size for you, we stock a range of Cortizo 4700 sliding door sizes, including:
Flood your home with natural light
Even the most well-designed spaces look gloomy without natural light.
Cortizo sliding doors will flood your space with natural light to enhance your room’s appeal.
Natural light has several benefits for your mental and physical health, and makes time spent at home feel even more special.
Easy install
Thanks to Korniche technologies, installation is quicker and easier than ever before.
Enjoy a transformed space in no time with minimal hassle.
Safe and secure
Cortizo doors are designed with shatter-proof toughened glass and feature multi-point lock mechanisms and high security cylinders.
Rest easy knowing they’re safe and secure.
Excellent thermal efficiency
Cortizo doors are energy efficient, delivering outstanding thermal performance, water resistance, and air-tightness.
They’re incredibly well insulated and are a great way to improve ventilation.
Additional features
Thanks to Korniche, these 3 sash doors come with some additional features, including:
- Slimmer sightlines
- Seamless vent integration
- Advanced security enhancements
- Stylish hardware options
10-year warranty
Enjoys premium aftercare and a gold-standard 10-year warranty for added peace of mind.
Choose Toughened Glass Systems for your glass door and rooflight products
We’re an industry leader with years of experience providing high-quality glass features at unbeatable prices.
All our products are wonderfully made and built to last, giving you years of added natural light and enjoyment in your home for years to come.
Contact us today if you have any questions, and view our wider range of glass rooflight products below:
Fitting & Measurements
The key measurement to focus on is the exact size of your structural opening.
For the best fit, the opening should be 5mm larger on all sides than the sliding door size you are ordering.
For example, if you order a door that’s 2100mm(h) by 4000mm(w), your structural opening should be 2110mm (h) by 4010mm (w) to ensure a smooth fit.
This slight difference allows the doors to be installed smoothly and securely.
Please be aware that we do not supply fully flush-fitting doors (flush on both sides) as they do not provide a weather rating. The final finish is up to the builder, but in most cases, the interior side will be built up flush. However, the exterior must allow for proper water drainage. While the builder may install a flush drainage system, there must always be a slight step from the outside to the inside.
We advise each project has its own specifications. If this is a new build, then laminate glass is required to comply with document “L”. There may also be a requirement for trickle vents to be incorporated into your project. We advise checking this before purchase as all orders are made to order and sizes/specifications cannot be changed once manufacturing commences. Please note orders for triple glazed glass are not available on the website, please contact us if you require triple glazed glass.
CORTIZO 4700 Measuring- Guide & Technical information
CORTIZO 4700 Sliding Door Configurations
CORTIZO 4700 SLIDING DOOR-Installation Guide
CORTIZO_4700_SLIDING DOOR_BROCHURE
FAQs
How long is the warranty on the Cortizo doors?
The Cortizo 4700 Sliding Doors come with a 10-year manufacturer’s warranty, providing customers with complete peace of mind and confidence in their long-term quality and reliability.
How long is the delivery time?
The lead time for delivery is 2–3 working weeks. Within 48 working hours of order confirmation, you will receive a scheduled delivery week to help you plan your project efficiently. A confirmed delivery date will be provided during the week prior to your scheduled delivery window. Whether the door is assembled or in kit form, the glass will still be delivered with the door but not in the sash’s, it will need to be installed, once the door is fitted.
My property is a new build so does this comply?
We advise each project has its own specifications. If this is a new build, then laminate glass is required to comply with document “L”. There may also be a requirement for trickle vents to be incorporated into your project. We advise checking this before purchase.
Delivery
Lead time for this product is 2 to 3 working weeks. Please note labour would need to be on site to accept and off load the glass from the vehicle.
An initial week commencing delivery date is provided as production commences immediately to ensure efficient lead time. As the delivery week approaches a further confirmation message will follow advising of the booked delivery days itself for that week. WE STRONGLY ADVISE NOT CHANGING DELIVERY DATES AS THESE ARRIVE VIA THIRD PARTY TRANSPORT. PLEASE ALSO BE ADVISED AS THESE MADE TO ORDER CHANGES CANNOT BE MADE ONCE ORDERS ARE PLACED AS PRODUCTION LOG MEANS PRODUCTION COMMENCES.
We do not recommend arranging equipment and installation until the item has been delivered.
Please note delivery is FREE to most of the UK.
Deliveries cannot be facilitated to the following postcode locations:
AB, DD, IV, KW,KY, PA, PH and TR.
Note – You can choose face drained or concealed drainage when cill is added. Face drain is the only option with no Cill 
