AS-20 Smarts Sliding Doors | Ultra Slim Aluminium Sliding System UK - national supply, survey and installation
Call us: 020 341 10038 | 01768 254552
Email: projects@thefenestrationnetwork.co.uk
Transform your space with the AS-20 Smarts sliding door system — engineered for elegance, performance, and light in UK homes and projects.
What Is the AS-20 Smarts Sliding Door?
The AS-20 is a high-performance aluminium sliding door system with ultra-slim interlock sightlines (just 20 mm) designed to maximize glazing while maintaining structural integrity.
It’s ideal for modern and contemporary projects where you want seamless transitions between interior and exterior spaces, while preserving thermal efficiency, security, and flexibility in design.
Key Features & Technical Specs
Slim sightline (interlock) - 20 mm between sliding sashes
Thermal performance (U-value) - Approx. 1.1 W/m²K (with appropriate glazing)
Colour & finishes - Dual-colour option, over 200 RAL finishes, durable powder coating
Rollers & hardware - Heavy-duty stainless steel rollers for smooth glide
Thresholds - Rebated or level threshold options available
Panel / sash size limits - Dependent on glass, weight, and height constraints per installation (discuss in quote)
Security - Multi-point locking, internally glazed panels, engineered tolerance for strength.
These features combine to give a sleek appearance without sacrificing performance, weather-sealing, or security.
Benefits & Applications
- Maximise natural light & views — slim interlock means less obstruction to your view
- Elegant, minimal aesthetic — blends well with modern architecture and glazed extensions
- Flexibility in configuration — multiple tracks, folding or stacking arrangements
- Thermally efficient & compliant — helps meet UK regulations and energy requirements
- Durable & low maintenance — aluminium + quality coatings resist corrosion and need minimal upkeep
- Seamless interior–exterior flow — ideal for patios, terraces, garden rooms, and extensions
This sliding system is especially suited for homeowners, architects and developers who prioritise light, aesthetics, and performance in their glazing solutions.
Design, Supply & Install with Us - full national reach
- Survey & specification – we’ll assess your aperture, constraints, structural loads, and aesthetic goals
- Design support – we help choose configurations (e.g. number of panels, track types, threshold style)
- Bespoke manufacture – our manufacturers build precisely to your sizes and finish preferences
- Professional installation – hidden fixings, careful sealing, alignment & finishing
- Aftercare & warranty – full support with maintenance advice and guarantee coverage
We’ll also coordinate with your builder or contractor to ensure integration with floors, walls, roof lines and drainage.
AS-20 SLIDING DOORS | FULL PRODUCT REVIEW
AS-20 Sliding Doors | Ultra-Slim Aluminium by Fenestration Network
AS-20 sliding doors – ultra-slim 20mm frames, smooth sliding action, thermal efficiency and family-friendly soft close. Modern aluminium for your home.
AS-20 Smarts Sliding Doors — Supplied & Installed Across the UK
We supply and install the AS-20 Slim-Frame Sliding Door system nationwide, giving you ultra-slim sightlines, smooth operation and premium aluminium quality, whether you’re replacing patio doors or opening up an entire elevation.
South & South East
AS-20 Smarts Sliding Doors London, Kent, Surrey, Sussex, Hampshire, Southampton, Home Counties and Essex.
Whether you’re in a London townhouse, a coastal home in Sussex or a new extension in the Home Counties, our South & South East installation team will cover your site from survey to completion.
South West & West
AS-20 Smarts Sliding Doors Devon, Bristol and Gloucester.
In the south-west we offer full supply and fit for modern homes and heritage conversions alike — ensuring the AS-20 system meets the performance, finish and service standards you expect.
Midlands & Central
AS-20 Smarts Sliding Doors Birmingham, The Midlands, Northamptonshire, Nottinghamshire, Leicestershire, Derbyshire and Lincolnshire.
Our central-England network delivers efficient lead times and professional installation in both domestic and commercial settings for the AS-20 sliding system.
North West
AS-20 Smarts Sliding Doors Greater Manchester, Manchester, Lancashire, Liverpool, Cheshire, Cumbria and Carlisle.
From city-centre apartments to barn conversions in the North West, we supply, install and support the AS-20 with attention to detail and regional knowledge.
Yorkshire & North East
AS-20 Smarts Sliding Doors Yorkshire, Newcastle and the North East.
Whether you’re renovating a Yorkshire home or developing in the North East, we bring the AS-20 sliding door system to your region with full specification, colour and hardware choice options.
Related Products & Matching Options
If your project requires alternatives or complements:
- Bifolding systems — for fold-away openings
- Heritage / French doors — for matching styles in other elevations
- Flush glazing & slimline frames — for consistent visual style across windows and doors
You can create a cohesive look by choosing complementary systems across your project.
PUTTING YOUR MIND AT EASE...
A British Standard that specifies the security performance requirements for doors and windows
the official police security initiative that works to improve the security of buildings and their immediate surroundings
A British Standard that specifies the security performance requirements for doors and windows
quality glazing products, manufactured right here in the UK
the official police security initiative that works to improve the security of buildings and their immediate surroundings
A British Standard that specifies the security performance requirements for doors and windows
the official police security initiative that works to improve the security of buildings and their immediate surroundings
the official police security initiative that works to improve the security of buildings and their immediate surroundings
the official police security initiative that works to improve the security of buildings and their immediate surroundings
WHICH REGIONS DO WE COVER?
The Fenestration Network are Nationwide Supply and Installation experts in:
Bi Folding Doors/ Sliding Doors/ Entrance Doors/ Windows/ Garden Studios, Glass Balustrades, Orangeries.
Our teams have over 35 years experience supplying and installing quality Glazing products across the UK. We have teams of Surveyors, Installers and Technical Experts close to you to help guide you through your project.
We cover all regions on this map with our professional and highly skilled , local surveyors and installers.
020 341 10038 - South
01768 254552 - Rest of UK