Wide Views. Seamless Access. Modern Living.

At AT-ECO Windows & Doors, we supply premium sliding doors from top brands including Internorm, Drutex, Reynaers, and Schüco — each offering advanced performance, security, and architectural appeal.

What Are Sliding Doors?

Sliding doors are large glazed door systems designed to open horizontally along a track, providing wide, uninterrupted views and easy access to outdoor areas. Known for their slim profiles and smooth operation, sliding doors are ideal for modern homes where space, light, and connection to the outdoors are key design priorities.

Benefits of Sliding Door Design

Sliding doors maximise natural light and create a seamless transition between indoor and outdoor spaces. Whether you’re opening onto a garden, terrace, or balcony, they offer unobstructed views, excellent insulation, and smooth operation.

Key Features

Wide-Span Glazing: Expansive glass panels for panoramic views and bright interiors.
Smooth, Silent Operation: Precision-engineered tracks and rollers ensure effortless movement.
Thermal Performance: Double or triple glazing with insulated frames for energy efficiency.
Low Threshold Options: Flush floor detailing enhances accessibility and visual continuity.
Security & Weather Sealing: Multi-point locking, secure profiles, and advanced sealing systems.

Why Choose Sliding Doors?

Ideal for large openings and uninterrupted views
Space-saving design compared to hinged doors
Enhances indoor-outdoor living experience
Exceptional thermal and acoustic insulation
Suitable for contemporary, minimalist, and luxury homes

U-Value Performance Comparison

Brand	Material	U-Value (W/m²K)	Security Class	Passive House Suitable
Internorm	Timber-Aluminium	~0.73	PAS24/SBD/RC2	✅ Yes
Drutex	uPVC / uPVC-Alu	~0.71-0.80	RC2	✅ Selected models
Reynaers	Aluminium	~0.8-1.2	PAS 24/RC2/RC3	✅ Selected models
Schüco	Aluminium	~0.76-1.6	PAS 24/RC2/RC3	✅ Some variants

Sliding Door Model Comparison

Brand	Model	Material	U-Value (W/m²K)	Passive House	Notes
Internorm	KS 430	uPVC-Aluminium	~0.68	✅	Lift-slide, Passive House suitable, ultra-smooth track
Internorm	HS 330	Timber-Aluminium	~0.73	✅	Thermally efficient with natural timber interior
Drutex	IGLO-HS	uPVC	~0.71	✅	Modern lift-slide with strong insulation and design options
Drutex	IGLO-HS ALUCOVER	uPVC-Aluminium	~0.73	✅	Aluminium-clad upgrade for enhanced durability
Drutex	MB-77HS HI	Aluminium	~1.0	❌	Thermally advanced sliding system for energy-efficient homes
Drutex	MB-77HS HI MONORAIL	Aluminium	~0.75	✅	Single rail sliding solution for large glass panels
Drutex	MB-59HS HI	Aluminium	~1.5	❌	Budget alternative with thermal break for smaller budgets
Drutex	SOFTLINE HS	Timber	~1.4	❌	Timber warmth with modern energy standards
Drutex	DUOLINE HS	Timber-Aluminium	~0.8-1.1	✅	Timber interior with aluminium protection outside
Drutex	IGLO EDGE SLIDE	uPVC	~0.65	✅	Sharp, modern design with concealed handles
Drutex	IGLO SLIDE	uPVC	~1.2-1.6	❌	Standard sliding alternative for affordability
Drutex	MB-SLIDE	Aluminium	~1.2-1.6	❌	Basic thermal aluminium system for sliding doors
Drutex	COR VISION	Aluminium	~1.3	❌	Minimalist profile with wide openings
Drutex	COR VISION PLUS	Aluminium	~0.9	❌	Ultra-slim, premium sliding with structural strength
Reynaers	HiFinity	Aluminium	~0.8	✅	Ultra-slim, premium aesthetic with motorised options
Reynaers	MasterPatio	Aluminium	~0.82	✅	Next-gen performance for energy and comfort
Reynaers	ConceptPatio 155	Aluminium	~1.0-1.6	❌	High-end performance and strength for large spans
Reynaers	ConceptPatio 130	Aluminium	~1.5	❌	Balanced insulation and cost-efficiency
Reynaers	ConceptPatio 68	Aluminium	~1.6	❌	Cost-effective aluminium sliding with basic insulation
Reynaers	SlimPatio 68	Aluminium	~1.2-1.4	❌	Sleek frame, ideal for minimal visual intrusion
Schüco	ASS 75	Aluminium	~ 0.83	✅	High-performance system with structural and acoustic efficiency
Schüco	ASE 67 Range	Aluminium	From 1.0	❌	Versatile sliding range with slim profiles and automation

Smart Technology Integration

Selected systems offer:

Motorised opening mechanisms
Remote-control or app-based operation
Automated locking and soft-close features
Smart glass options for privacy or solar control

These upgrades are available on premium Internorm, Drutex, Reynaers and Schüco models.

Suitable Applications

Garden and patio access
Balconies and rooftop terraces
Open-plan living extensions
New builds and luxury refurbishments
Passive House and energy-efficient projects

Warranty and Technical Support

Manufacturer-backed product guarantees
Maintenance and care guidance
Technical specification assistance

Sustainability Considerations

Using recyclable aluminium and uPVC profiles
Offering FSC-certified timber where applicable (Internorm)
Reducing long-term energy use through high insulation
Supporting passive solar gain and natural ventilation

We’ll help you choose a solution that supports both your aesthetic vision and energy-efficiency targets.

Recent Work

Working closely with architects, builders, and homeowners, we’ve delivered systems that combine thermal efficiency, modern aesthetics, and long-term durability—across private residences, sustainable developments, and architect-led designs.

Swanton House: Modern Renovation in Kent

The renovation project was successfully completed on schedule, surpassing initial insulation and energy efficiency goals by an impressive 70% and delivering a sleek, contemporary finish.

Sliding Doors in uPVC, Aluminium & Timber – Supplied in London