British Manufacturing Excellence in Aluminium Doors

We manufacture Sheerline systems with uncompromising quality and precision engineering. Our premium aluminium doors combine British manufacturing heritage with contemporary design excellence for demanding commercial and residential applications.

✨ Sheerline Systems

Contemporary design excellence with sleek aesthetics and cutting-edge performance for modern architectural solutions. Professional installation service is available in our local areas.

3 Pane Aluminium Door

Perfect for smaller openings, this 3-pane bi-fold door offers excellent space-saving functionality while maintaining a sleek, modern appearance.

Max Width: 3m

4 Pane Aluminium Door

The popular 4-pane configuration provides an ideal balance between opening width and structural integrity for medium-sized spaces.

Max Width: 4m

5 Pane Aluminium Door

Maximise your opening with this 5-pane bi-fold door system, perfect for creating seamless indoor-outdoor living spaces.

Max Width: 5m

6 Pane Aluminium Door

Our largest bi-fold door configuration is designed for wide openings and maximum impact in commercial or large residential applications.

Max Width: 5m

Aluminium French Doors

Classic elegance meets modern engineering. These aluminium French doors provide timeless style with contemporary performance and energy efficiency.

Max Width: 2.4m

Lift and Slide Doors

The innovative lift and slide mechanism allows for effortless operation of large glass panels, creating stunning panoramic views and providing easy access.

Advanced Sliding System

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Aluminium Bi-Fold Doors

Our aluminium bi-fold doors provide a modern, space-opening solution for homes and commercial properties. Designed to create seamless indoor-outdoor living, these doors fold neatly to one side, allowing you to maximise your opening and bring in natural light.

Manufactured from high-quality aluminium profiles with integrated thermal breaks, our bi-fold doors offer exceptional strength, durability and energy efficiency. The slimline frames allow for larger glass panels, creating a clean, contemporary look while maintaining excellent performance.

What Are Aluminium Bi-Fold Doors?

Bi-fold doors consist of multiple panels that fold and slide along a track system. Unlike traditional patio or French doors, they allow you to fully open an entire wall, making them ideal for extensions, garden rooms and modern living spaces.

Bi-Fold Door Configurations

We offer a range of configurations to suit different openings and layouts:

• 3 Panel Bi-Fold Doors: Ideal for smaller openings (up to approx. 3m)
• 4 Panel Bi-Fold Doors: Popular choice for medium-sized openings
• 5 Panel Bi-Fold Doors: Suitable for larger openings up to 5m
• 6 Panel Bi-Fold Doors: Maximum opening width and impact

All doors are made to measure, ensuring a perfect fit for your project.

Why Choose Aluminium Bi-Fold Doors?

• Slim frames for maximum glass and natural light
• Strong yet lightweight aluminium construction
• Integrated thermal breaks for improved energy efficiency
• Smooth, reliable operation with precision-engineered hardware
• Weather-resistant and low maintenance

Aluminium is ideal for bi-fold doors due to its strength-to-weight ratio, allowing large openings without bulky frames.

Glazing Options and Performance

Our aluminium bi-fold doors are supplied with high-performance glazing options:

• Standard 28mm double glazing (U-value approx. 1.4)
• Optional 44mm triple glazing (U-value approx. 1.0)

Triple glazing provides significantly improved insulation, making it ideal for exposed locations or energy-efficient homes.

Colours and Finishes

We offer a wide range of finishes including:

• Anthracite grey (RAL 7016)
• Jet black
• Pure white
• Dual colour options (different inside and out)

Custom RAL colours are also available to match your windows, doors and external finishes.

Aluminium Bi-Fold Doors in Bristol

We supply aluminium bi-fold doors in Bristol, Bath and across the South West. All doors are manufactured to order and can be supplied for trade or DIY installation.

Our local manufacturing and supply service ensures fast turnaround and reliable quality for every project.

Common Applications

• Extensions and open-plan living spaces
• Kitchen and dining room openings
• Garden rooms and conservatories
• Commercial spaces and showrooms

Aluminium Bi-Fold Door FAQs

Are aluminium bi-fold doors energy efficient?

Yes, modern aluminium doors include thermal breaks and high-performance glazing to improve insulation and reduce heat loss.

What size opening can bi-fold doors cover?

Depending on configuration, bi-fold doors can span openings from around 1.8m up to 6m or more.

Do bi-fold doors require maintenance?

Aluminium doors are low maintenance and only require occasional cleaning and lubrication of moving parts.

Browse our range of aluminium bi-fold doors below to find the right configuration for your project.