Aluminium Multi-Folding Doors by Ultraglaze

Aluminium Folding Sliding Doors bring a perfect fusion of style, functionality, and durability to your home. Designed with sleek aluminium frames, these doors feature expansive glass panels that maximize natural light and create a seamless, fully open connection between indoor and outdoor spaces.

Engineered for smooth, silent operation, they fold and slide effortlessly on high-performance, heavy-duty rollers, allowing configurations from 2 to 7+ panes that stack neatly to one or both sides. Available in world-class systems — SMARTS Visofold, ALUK BSF70, CORTIZO Bi-Fold, SHEERLINE Prestige, and Schüco — they deliver ultra-slim sightlines, PAS24 security, U-values as low as 1.0 W/m²K with optional triple glazing, and unmatched German-engineered precision.

Built for all-weather resilience and zero maintenance, these folding sliding doors offer superior energy efficiency, noise reduction, and architectural flexibility — transforming any space into a light-filled, open-plan living area.

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We offer a superior range of Folding Doors

Aluminium Bi-Folding Doors are engineered with advanced multi-chambered profiles that trap air for outstanding thermal insulation, keeping your home comfortable and energy-efficient all year round. High-security multi-point locking engages at multiple points around the frame for uncompromising protection and total peace of mind.

Paired with high-performance double or triple glazing, they deliver exceptional U-values from 0.8 to 1.4 W/m²K (up to 1.6 W/m²K for standard replacements), superior noise reduction, and robust structural strength — all in a sleek, modern package.

Available in premium systems — SMARTS Visofold, ALUK BSF70, CORTIZO Bi-Fold, SHEERLINE Prestige, and Schüco — with clean, modern sightlines of 90mm , 94mm, 110mm and 120mm offering tailored design flexibility for any project. Optional lift-and-slide mechanism ensures ultra-smooth, fingertip operation, even on large, multi-panel configurations.

Fully weather-sealed, zero maintenance, and built to last — the perfect choice for contemporary homes, extensions, and heritage-compliant developments.

90mm Sightline

Schüco AS FD 75/90.HI – command attention with ultra-slim 90mm interlocks and superior high-insulation performance in a premium aluminium bi-fold system.
Engineered for grand-scale openings, this robust yet refined solution effortlessly supports large, heavy panels, delivering expansive glass walls, maximum daylight, and seamless indoor-outdoor transitions – ideal for luxury homes, modern extensions, and high-end commercial projects.

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94mm Sightline

Smarts Visofold 6000 – the ultimate choice for heritage applications, featuring ultra-slim 94mm sightlines that capture the authentic charm of traditional steel Crittall doors with modern precision.
Engineered with heritage sash options and authentic glazing bars for an Art Deco-inspired aesthetic

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110mm Sightline

Cortizo Versatile System – the most popular choice for bespoke aluminium bi-folds, offering unmatched flexibility and heritage authenticity in a robust 70mm frame depth.
This versatile powerhouse supports expansive configurations up to 14 panes, with slim 120mm sightlines when folded, and seamless integration of authentic options like lead detailing, traditional glazing bars, georgian lattices, and heritage hardware – perfect for conservation areas, period renovations, or contemporary projects demanding historical flair.

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120mm Sightline

Smarts Visofold 1000 – the reliable standard with a 120mm sightline.
Supports up to 9 panes, 100kg sashes, PAS24 security, and U-values to 1.4 W/m²K. Smooth inward/outward folding, low thresholds, and 150+ RAL colours – ideal for homes, extensions, and light commercial use.

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Fortified Protection

Our Aluminium doors feature advanced multi-point locking systems, delivering top-tier security and peace of mind.

Exceeding UK standards like PAS24 certification, these robust mechanisms secure the doors at multiple points, blending strength and sleek design for reliable protection day or night.

Attention to detail

Seamless Access

Elevate your entry with a sleek, low-profile threshold that ensures easy accessibility and excellent weather resistance.

This design creates a smooth indoor-outdoor connection, reducing trip hazards while enhancing both functionality and aesthetic appeal.

Crystal-Clear Comfort

Enjoy double or triple glazing options, turning aluminium sliding doors into a haven of energy efficiency and tranquillity.

With U-values as low as 0.8 W/m²K, they keep your home comfortable, reduce noise, and flood spaces with natural light for a brighter, inviting atmosphere.

Functional & energy efficient

Market Leading Energy Rating’s

Aluminium Bi-Folding Doors deliver exceptional functionality with smooth, silent folding on heavy-duty rollers, supporting sash weights up to 320kg and spanning large openings with effortless ease.

Available in versatile configurations — including triple-track options for maximum flexibility — they fold neatly to one or both sides, creating wide, unobstructed access and seamless indoor-outdoor flow. Enhanced with triple glazing up to 56mm, they achieve U-values as low as 0.8 W/m²K for superior thermal insulation, keeping homes warm in winter and cool in summer.

Advanced glazing also ensures excellent acoustic performance, reducing external noise for a tranquil living space. Built from premium systems — SMARTS, ALUK, CORTIZO, SHEERLINE, and Schüco — with sightlines from 94mm to 154mm, they combine durability, security, and low maintenance with a 10-year guarantee against mechanical failure.

Quality Hardware you can trust

Multi-Point Locking

Enhance your home's security with multi-point locking systems that engage at several points along the frame, providing robust resistance against forced entry.
Stainless Steel Heavy Duty Rollers

Experience effortless gliding with heavy-duty stainless steel rollers designed for smooth, reliable operation, supporting sash weights up to 320kg and ensuring long-lasting performance even on large panels.
Seamless Integrated Handles

Achieve a minimalist look with seamless integrated handles in the Cortizo Cor Vision system, offering flush, modern operation that blends invisibly into the frame for uninterrupted views and contemporary style.
(20mm system only)
Integral Sealed Unit Blinds

Add convenience with integral sealed unit blinds, factory-fitted between the glass panes for effortless light control, privacy, and insulation without the hassle of external fittings or maintenance.
PAS24 Laminated Glass Specification

Upgrade to smart living with electronic controls in the Cortizo Cor Vision Pro, allowing motorized operation via app or remote for effortless access, enhanced security, and integration with home automation systems.

(20mm system only)
Low-Profile Threshold

Enjoy barrier-free access with a sleek low-profile threshold as slim as 12mm, promoting easy mobility and seamless indoor-outdoor flow while maintaining excellent weather resistance and safety.

“Heritage” Style Folding Doors

Heritage bi-folding doors blend the timeless elegance of traditional architecture with cutting-edge aluminium engineering, making them the perfect solution for listed buildings, conservation areas, and period renovations. Featuring authentic detailing such as glazing bars, lead work, ovolo mouldings, and heritage hardware (monkey tail handles, peg stays, and letterplates), these doors replicate the charm of original steel Crittall or timber designs—while delivering modern performance in thermal efficiency, security, and durability.

With low or rebated thresholds, these doors ensure full compliance with heritage officers, seamless indoor-outdoor flow, and zero maintenance—preserving architectural integrity without compromising comfort or style.

“Corner-less” Folding Doors

Cornerless Folding Doors redefine modern living by removing traditional corner posts, offering an unobstructed, panoramic view that seamlessly connects indoor and outdoor spaces. Crafted from robust aluminium, these innovative doors feature expansive glass panels that maximize natural light, transforming your home into a bright, airy haven.

Available in a folding configurations, they provide versatile access options, ideal for open-plan designs or entertaining areas. The absence of a mullion ensures a continuous sightline flow, boosting aesthetic appeal and creating a striking focal point for any property.

Pick from any RAL Colour

Our Aluminium Patio Doors can be spray finished in any RAL Colour.

This process provides a durable, long-lasting surface that resists fading, chipping, and weathering while offering a smooth, even appearance.

With hundreds of RAL shades to choose from — including matte, gloss, and textured options — you can perfectly match your windows to your property’s style or branding.

Still not sure about our Aluminium Folding Doors?

This FAQ section focuses on our Aluminium Patio Doors, providing detailed information on their design, cost, energy efficiency, and value.

Whether you're renovating your home or just browsing window options, our responses are designed to give you the crucial details to help you decide.

Still not sure?
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Bi-folding doors are multi-panel aluminium doors that fold and stack neatly to one or both sides, creating a wide, unobstructed opening. They connect indoor and outdoor spaces seamlessly, available in 2–14+ pane configurations for maximum flexibility.
We provide premium aluminium systems: Schüco AS FD 75/90.HI (90mm interlocks, high-insulation), Smarts Visofold 6000 (94mm heritage sightlines), Cortizo 100mm (versatile, up to 14 panes), Smarts Visofold 1000 (120mm standard), ALUK BSF70, and SHEERLINE Prestige – all with PAS24 security and U-values down to 0.8 W/m²K.
Choose from 90mm, 94mm,110mm, 120mm, and 154mm sightlines for slim, modern aesthetics.
We can offer as low as no frame and glass-to-glass.
This is P.O.A
Yes – fully compliant. Systems like Cortizo and Visofold 6000 feature authentic glazing bars, lead detailing, ovolo mouldings, and monkey tail handles. FENSA-approved for listed buildings with low/rebated thresholds.
A++ rated with U-values from 0.8–1.4 W/m²K (up to 1.6 W/m²K standard). Multi-chamber profiles, polyamide thermal breaks, and triple glazing (up to 56mm) ensure superior insulation and noise reduction.
PAS24 accredited multi-point locking secures panels at multiple frame points. Supports sash weights up to 320kg, with heavy-duty rollers for robust, tamper-resistant performance.
Virtually none. Aluminium resists weathering, fading, and warping. Clean with soapy water; no painting or sealing needed. 10-year mechanical guarantee standard.
Item descriptionAbsolutely:
- Finishes: 200+ RAL colours (anthracite grey, light oak, dual-tone).
- Glazing: Clear, obscure, Georgian bars, leaded.
- Hardware: Heritage (swan neck, monkey tail) or modern.
- Config: Inward/outward fold, triple-track, lift-and-slide upgrade.
Panels up to 1000mm wide x 2200mm high; sashes to 120–320kg. Ideal for large openings in homes, extensions, or commercial spaces.
Silky-silent on high-performance rollers. Optional lift-and-slide mechanism for effortless fingertip control on heavy panels – no sticking or dragging.
Yes – supply & fit by FENSA-registered experts.
Includes survey, 3D visuals, and 10-year insurance-backed guarantee. Supply-only available.
From £3,000–£20,000+ (inc. VAT/install), depending on size, panes, and customisation.
Free quotes with no-obligation consultations.
1 to 8 weeks lead time; 1–2 days on-site install.

Urgent projects accommodated.
* - Stock Dependant

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