The Ultimate Guide to Bifold Door Security

Bi-fold doors are a modern upgrade used to bring more natural lighting into a home, but this stylish addition has raised some home security questions, with many homeowners asking “are bi-fold doors secure?”.

With the right bifold door locks, glazing and reinforcements, these doors can be just as secure as any traditional entry point. This guide explains everything about bi-fold door security, including how to help prevent forced entry.

Are Bifold Doors Secure?

Yes. Bi-fold doors can be highly secure if installed with quality materials and advanced locking systems. Their security depends on:

• Type of locks (multi-point or high security, like British Standard or Anti-Snap)
• Glass type (toughened or laminated)
• Reinforcements (handles, tracks, internal beading)

Modern bifold doors are designed to resist forced entry while maintaining their aesthetic appeal.

Key Bifold Door Security Features

1.     Multi-point Locks

Multi-point locks secure the door at three or more locations (top, middle, bottom). This makes it much harder for burglars to force the door open compared to single-point locks.

2. Concealed Track Lock Points

Some bifold doors have bolts that lock into the track, preventing prying while remaining hidden for a clean design.

3. High-Security Locks

High-security cylinders, such as British Standard or anti-snap locks, resist lock snapping, picking, and bumping. These are recommended for all modern bifold doors.

4. Toughened Glass

Toughened glass is five times stronger than standard glass and resists breakage. It’s made by heating ordinary glass and rapidly cooling it, providing strong protection for large glass panels.

5. Laminated Glass

Laminated glass is made of two thin panels with a plastic interlayer. If broken, the plastic holds the glass together, making forced entry extremely difficult. Laminated glass is often preferred over toughened glass for security.

6. Strong Handles

Handles are a common attack point. Choose high-security handles with features such as:

• Curved design
• Sacrificial spindle and knuckle
• Reinforced body
• Encased cylinder

Combining a 1- or 3-star cylinder with a 2-star TS007:2012 handle enhances security further.

7. Internal Beading

Internal beading prevents glass panels from being removed from the outside, reducing the risk of intrusion.

How to Secure a Bifold Door

Even with strong locks and reinforced glass, additional precautions improve security:

1. Always lock the door – Around 10% of burglaries involve unlocked doors.
2. Hide valuables – Keep expensive or ‘burglar-attractive’ items out of view.
3. Install security cameras – Proven deterrent and monitoring tool.
4. Use motion-sensor lighting – Protects your property in low-light conditions.
5. Add extra devices – Security bars or additional locks provide extra reinforcement.

The Impact of Bi-Fold Doors on Home Security

Bifold doors can be a secure choice if fitted correctly. Recommended measures include:

• High-quality locks: British Standard, anti-pick, anti-bump, anti-snap
• Reinforced glass: Laminated or toughened
• Durable materials: Aluminium, uPVC, or quality wood

Material Security Comparison

Compared to French doors, bifold doors are often more secure due to multiple locking points and robust construction.

Choosing the Right Bifold Door Locks

When selecting bifold door locks, consider:

• Multi-point locking systems
• Anti-snap or British Standard cylinders
• Handles with TS007:2012 certification
• Internal security reinforcements

An expert locksmith can advise on the best lock type for your specific bifold door model.

Maintenance Tips for Bifold Door Security

Even the most secure bifold doors require regular maintenance to remain effective against forced entry. Simple steps can prolong the life of your locks, hinges, and glazing, while keeping your home safe.

Lock and Handle Maintenance

• Lubricate locks and hinges every 6–12 months using a graphite or silicone-based lubricant. Avoid oil-based products, which can attract dust and grit
• Check handles for looseness or damage. Tighten screws and replace handles that show signs of wear
• Test multi-point locks regularly to ensure all locking points engage smoothly

Glass and Beading Checks

• Inspect laminated or toughened glass for cracks or damage. Even minor cracks can compromise security.
• Ensure internal beading is intact and securely fixed to prevent glass removal.

Track and Roller Maintenance

• Clean door tracks regularly to remove dirt, leaves, and debris that can hinder smooth operation
• Check rollers for wear or misalignment. Smooth operation ensures the locks engage fully and reduces strain on the locking system

Weatherproofing Checks

• Inspect weather seals and gaskets. Damaged seals can create gaps that reduce security and affect insulation
• Replace worn-out seals promptly

Regular Professional Inspections

• Every 1–2 years, consider a professional locksmith inspection to check your locks, handles, and overall security. They can identify vulnerabilities you may miss

By performing these simple maintenance tasks, you can extend the life of your bifold door security features and maintain peace of mind

Summary: Bi-Fold Door Security

• What is a bifold door? A folding, sliding multi-panel door for wide openings and natural light.
• Are bifold doors secure? Yes, with quality locks, reinforced glass, and proper installation.
• Key security features: Multi-point locks, high-security handles, laminated or toughened glass, internal beading.
• Extra precautions: Lock doors, hide valuables, use cameras and motion lights.
• Best materials: Aluminium is most secure, followed by quality wood and uPVC.

With the right security measures, bi-fold doors provide style, light, and strong protection.