Cortizo 4900 3 Pane Sliding Door
The Cortizo 4900 Sliding Door offers excellent thermal and acoustic insulation, supported by a glazing capacity of up to 36 mm and a 34 mm thermal break. It features a 35 mm interlock, allowing sash crossing thanks to the integrated handle with multipoint locking system. This system is also complient with building regulations giving you peace of mind.
From £2565.46
- Warranty: 10 Year Product Warranty
- Estimated Delivery: 2-3 Weeks
- Free Shipping on all UK orders over £1000 (T's & C's Apply)
- Pay in Installments with Klarna
Cortizo 4900 Sliding Door System
The Cortizo 4900 Sliding HI system is a premium high-performance aluminium sliding door solution designed for modern residential and commercial architecture. Engineered with advanced thermal break technology and minimalist aesthetics, it delivers exceptional energy efficiency, durability, and sleek design for large glazed openings.
Featuring a slim central interlock of just 35 mm, the system maximises glass area and natural light while maintaining a clean, contemporary look. It supports glazing units up to 36 mm thick, enabling superior thermal insulation and acoustic comfort for year-round performance.
Built for strength and reliability, the Cortizo 4900 Sliding HI can accommodate large-format sashes weighing up to 240 kg, making it ideal for wide-span openings and panoramic views. Its precision-engineered rollers ensure smooth, effortless operation even on heavy panels.
Designed to meet high-performance building standards, the system achieves excellent results in energy efficiency and weather resistance, including Uw values from approximately 1.2 W/m²K, acoustic insulation up to 40 dB, and top-tier classifications for air, water, and wind resistance.
Key Features of Cortizo 4900:
- Ultra-slim 35 mm central interlock for maximum glass and light
- High-performance thermal break system for improved insulation
- Supports glazing up to 36 mm for enhanced energy efficiency
- Large sash capacity up to 240 kg for expansive openings
- Smooth sliding operation with precision roller technology
- Excellent thermal performance (Uw from ~1.2 W/m²K)
- Acoustic insulation up to 40 dB for quieter interiors
- High resistance to air, water, and wind (Class 4 / 7A / C5)
- Suitable for residential and commercial applications
- Wide range of finishes including RAL colours, textured and wood-effect options
- Complient with building regs
Ideal Applications
The Cortizo 4900 system is ideal for luxury homes, contemporary extensions, apartments, hotels, and commercial buildings where large glass areas, minimal sightlines, and high energy efficiency are required.
| Configuration | Left, Right, Both |
|---|---|
| Frame Colour | Black, Anthracite, White |
| Handle Colour | Black, White, Satin Chrome, Smoke Chrome |
| Cill | No Cill, 190mm Cill, 230mm Cill |
| Trickle Vents | No Trickle Vents, 1 Trickle Vent, 2 Trickle Vents |
| Glass | Toughened Softcoat Low E (1.2 u-value), Toughened Softcoat Ultra Low E (1.0 u-value) |
- Estimated delivery time is 2-3 working weeks.
- Our delivery times are Monday to Friday 7am – 7pm. Our driver will contact you at least 1 hour prior to arrival on the day of delivery.
- Once your order has been processed, you will receive email confirmation containing a week commencing date for delivery.
- You will be notified by email once your order has gone into manufacturing.
- On Wednesday of the week before delivery, you will receive an email and telephone call to confirm the exact delivery date.
- Should you request to delay the delivery of your order after it has been confirmed on Wednesday of the week before, this will incur a £5 per day, per door storage fee.
- We operate a one-man delivery service therefore, the driver will require assistance offloading from the van. It would be greatly appreciated if you could ensure a clear space has been made for ease of access on the day of delivery as your Bifold & Sliding Patio doors will be delivered fully assembled unless they are over 4.9 metres wide or over 2.3m high or if flatpack has been requested.
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