Aluminium Bi Fold Doors

What is it?

Aluminium bi-fold doors (or bi-folding doors) are a type of external door system constructed from aluminium frames and glass panels. Unlike traditional hinged doors that swing in or out, bi-fold doors feature multiple door panels connected by hinges. When opened, these panels "fold" and stack against one another, usually sliding along a track to one or both sides. This creates a concertina-like effect, allowing the entire aperture to be opened with minimal obstruction.

What advantage does it have?

Maximized Opening: The primary advantage is the ability to open up an entire wall of a house. Unlike sliding doors, which always block half the opening, bi-folds can stack to leave up to 90% of the opening clear, creating a seamless transition between indoor and outdoor spaces (e.g., patios or gardens).

Unobstructed Views: Aluminium frames can be manufactured with very slim profiles. This results in a higher glass-to-frame ratio compared to uPVC, offering expansive, panoramic views of the outdoors while maintaining structural strength.

Durability & Strength: Aluminium is naturally strong, durable, and lightweight. It is resistant to warping, rotting, and rusting, making it ideal for the variable British weather. It can support large, heavy glass panels without the frame bending.

Thermal Efficiency: Modern aluminium bi-folds use "thermal break" technology. A layer of insulating material is inserted into the aluminium frame to prevent heat loss, making them highly energy efficient and reducing heating bills.

Low Maintenance: Aluminium requires very little maintenance. It does not need painting or sealing; an occasional clean with soapy water is sufficient to keep it looking new.

Security: High-quality aluminium doors feature multi-point locking systems and robust hardware, making them highly secure against break-ins.

Light & Ventilation: The large glass area floods the interior with natural light. When partially opened, they act like a series of French doors, providing excellent cross-ventilation and airflow.

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