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Transform your space
Tired of dull, cluttered spaces that feel disconnected from the outside world?
Cortizo 4700 sliding 3 sash doors create a seamless connection with nature, flooding your space with natural light and creating a calming sense of openness.
Their minimal design and modern style will transform any room, while the slim central interlock and streamlined frame emphasise the sleek aesthetic.
If 2 sash isn’t the right size for you, we stock a range of Cortizo 4700 sliding door sizes, including:
Increase natural light
A lack of natural light saps the life out of even the most beautiful spaces.
Cortizo sliding doors will maximise daylight, creating brighter and more inviting rooms.
Natural light has several benefits for your health and wellbeing, and will make every moment at home feel special.
Easy install
Korniche technologies make installation faster and easier than ever before.
With minimal hassle, you’ll be able to enjoy your new doors in no time.
Advanced security
The sliding doors are designed with shatter-proof toughened glass and feature multi-point lock mechanisms and high security cylinders.
Enjoy peace of mind knowing they’re safe and secure.
Thermally efficient & weather performance
Each design delivers fantastic thermal performance and meets the highest standards for water and wind resistance and air-tightness.
They’re excellently insulated and provide an easy way to improve ventilation in your home.
Extra features
Korniche updates offer slimmer sightlines with seamless vent integration, advanced security enhancements, and introduce stylish, updated hardware options, all while retaining the features that made the 4700 a market favourite.
10-year warranty
Moreover, Korniche provides premium aftercare and includes a gold-standard 10-year warranty for added peace of mind.
Choose Toughened Glass Systems for your glass door and rooflight products
As a leading name in the industry, we’ve spent years providing high-quality glass features at fantastic prices.
All our products are beautifully made and durable, promising a stunning aesthetic and reliable performance 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 
