Elevate Your Home with Bristol’s Specialist Window & Door Manufacturer.
Double Glazing, Bristol, Yate & South Gloucestershire
Premium Aluminium Sliding Patio Doors
Create a brighter, more open living space with our Premium Aluminium Sliding Patio Doors, engineered using the acclaimed Cortizo 4700 system. Designed for large glazing areas, modern aesthetics, and smooth operation, this is the ideal door for homeowners wanting a blend of style, performance, and effortless usability.
Whether you choose the In‑Line Slider or the Lift & Slide configuration, the Cortizo 4700 delivers outstanding thermal performance, impressive acoustic insulation, slim sightlines, and remarkable durability. It’s the perfect choice for extensions, contemporary homes, property renovations or anywhere large openings and maximum glass are key.
Slim, Contemporary Design
The 4700 system features modern, straight-line framing with an ultra‑slim 47 mm central mullion for uninterrupted views and an abundance of natural light. These sleek aesthetics make the doors suitable for both new builds and stylish upgrades to older properties.
Exceptional Thermal Efficiency
With advanced thermal break technology and high‑performance glazing options, the 4700 system achieves:
- U‑values from 1.2 W/m²K depending on glazing and configuration
- Reduced heat loss and improved year‑round comfort
- Improved condensation resistance thanks to insulated frames
Ideal for modern homes seeking energy‑efficient glazing without compromising on large openings.
Outstanding Acoustic Performance
The Cortizo 4700 offers acoustic insulation up to 40 dB, meaning it significantly reduces outside noise.
To put that into everyday terms:
- Typical road noise: 80–85 dB
- After 40 dB reduction: ~40–45 dB inside
40 dB is similar to a quiet library or a soft conversation, turning busy outdoor noise into a gentle background sound. Ideal for properties near roads, schools, parks or other high‑activity areas.
Built for Smooth, Reliable Operation
The 4700 system is engineered for long‑term performance:
- Stainless steel rails for ultra‑smooth sliding action
- Optional Lift & Slide mechanism for a gliding, weightless feel
- Hidden drainage solutions
- High maximum sash weights:
- In‑line slider: up to 280 kg
- Lift & Slide: up to 300 kg
This ensures the doors remain easy to operate, even at very large sizes.
Designed for Large, Impressive Openings
Perfect for panoramic views and seamless indoor–outdoor living:
- Maximum sash sizes up to 2500 mm wide and 3000 mm high
- Double, triple or quadruple track systems
- Pocket-slider option for fully disappearing panels
- Slim framing emphasises glass, creating brighter, more open spaces
This makes the 4700 system ideal for modern extensions, garden rooms and full-width openings along the back of a home.
Certified Performance & Weather Protection
The Cortizo 4700 meets rigorous testing standards:
- Air permeability: Class 3 / Class 4
- Water tightness: Class 7A
- Wind resistance: Class C5 (one of the highest ratings)
- This ensures reliable durability even in exposed UK locations.
Extensive Colour & Finish Options
Customise the look to suit your home:
- Full RAL colour range available
- Textured, smooth, metallic and anodised finishes
- Dual‑colour options (different inside and outside)
- Wood‑effect finishes
- Over 100+ anodised tones available
We can help you select the perfect match for your doors and surrounding architecture.
Why Choose Yate Windows for Aluminium Sliding Doors?
- Our team can guide you through the options for aluminium specification and installation
- Precision installation for maximum smoothness and longevity
- Bespoke configurations tailored to your home
- Local expertise, friendly advice, and transparent pricing
- Matching aluminium windows available for a seamless project finish
Transform Your Living Space with the Premium Aluminium 4700 Sliding Door System
Whether you’re planning a full-width opening, replacing older patio doors or creating a modern extension, the Cortizo 4700 offers the perfect blend of performance, style and practicality.
👉 Contact Yate Windows today for a free quote, site survey or to view colour samples.
Or download our brochure HERE
