Are Aluminium Bifold Doors Secure?

Aluminium bifold doors are one of the most secure door systems available when correctly specified. Modern designs combine high-strength aluminium frames, advanced locking systems, and security-tested glazing, making them far more secure than older patio or timber door systems.

Below, we explain exactly why aluminium bifold doors are secure, what features matter most, and what to look for when choosing the right system.

Why aluminium is inherently secure

Aluminium is a high-strength material that does not warp, swell, or weaken over time like timber can. This allows manufacturers to design:

• Slim profiles without compromising strength

• Frames that remain rigid under force

• Tight tolerances for locks, hinges, and seals

The result is a door system that resists both forced entry and long-term wear.

Multi-point locking systems

Modern aluminium bifold doors use multi-point locking, meaning the door locks at several points along the frame rather than just one.

Typical systems include:

• Multiple locking points along the lead door

• High-security hooks or shoot bolts

• Reinforced lock keeps within the frame

When engaged, the door is secured across its full height — not just at the handle.

PAS 24 & security testing

Many high-quality aluminium bifold systems are PAS 24 tested, which means they have been independently assessed for resistance to:

• Forced entry

• Manual attack

• Levering and manipulation

PAS 24 compliance is a key indicator that a bifold door meets UK security standards for residential use.

Secure glazing options

Security isn’t just about the frame — the glass matters too.

Aluminium bifold doors are typically supplied with:

• Toughened safety glass as standard

• Laminated glass options for enhanced security

• Internally beaded glazing to prevent removal from outside

Laminated glass remains intact even if broken, making it far harder to breach.

Hinges, hardware & configuration

High-quality aluminium bifolds feature:

• Heavy-duty hinges rated for large door weights

• Anti-lift mechanisms on opening sashes

• Secure traffic doors with locking handles

Door configuration also matters. A properly designed system ensures:

• The lead door is securely locked

• Intermediate panels are correctly linked

• There are no weak points at panel junctions

How secure are aluminium bifolds compared to other doors?

Compared to older uPVC or timber folding systems, aluminium bifold doors generally offer:

• Greater structural strength

• Better long-term alignment

• More advanced locking options

• Improved resistance to forced entry

When compared to sliding doors, bifolds offer similar security levels when both are properly specified.

Does installation affect security?

Yes — security depends on correct installation.

Even the most secure bifold system can be compromised if:

• Fixings are incorrect

• The frame is not square or level

• Locks are misaligned

This is why accurate manufacturing and professional installation are critical.

Are aluminium bifold doors safe for family homes?

Yes. Aluminium bifold doors are widely used in:

• Family homes

• New builds

• Extensions

• High-value properties

When specified with the right locking, glazing, and hardware, they provide excellent security alongside large glazed openings.

Final verdict: are aluminium bifold doors secure?

Yes — aluminium bifold doors are extremely secure when:

• Manufactured from a quality system

• Fitted with multi-point locking

• Supplied with security-rated glazing

• Installed correctly

They offer a strong combination of strength, durability, and modern security features, making them a safe choice for modern homes.

Thinking about aluminium bifold doors?

At Home Build Doors, we supply premium aluminium bifold systems from leading manufacturers, with security-tested profiles and specification guidance to ensure you choose the right setup for your home.