Understand PAS 24 & why they matter when choosing windows & doors | The Fenestration Network
INTRODUCTION

Home security is a top priority for every UK homeowner, and with good reason. According to recent data, the majority of break-ins occur through windows and doors — often because of weak locks or poor-quality materials. That’s why it’s essential to ensure your new windows and doors meet recognised British security standards.

One of the most important of these is PAS 24, a benchmark for enhanced security performance. In this guide, we’ll explain what PAS 24 means, how it’s tested, and why choosing PAS 24-certified products gives you extra peace of mind.
Understand PAS 24 & why they matter when choosing windows & doors | The Fenestration Network
WHAT IS PAS 24?

PAS 24 (Publicly Available Specification 24) is a UK security standard developed by the British Standards Institution (BSI). It specifies the minimum performance requirements for the security of windows and doorsets used in residential properties.

In short, it ensures that your doors and windows can withstand forced entry attempts using tools and techniques commonly employed by intruders.

PAS 24 certification is not a legal requirement for every installation — but it’s a strong indication that your chosen products have been tested to the highest levels of safety.
Understand PAS 24 & why they matter when choosing windows & doors | The Fenestration Network
WHAT DOES PAS 24 COVER?

PAS 24 applies to:
External doorsets (e.g. front, back, bi-fold, and sliding doors)

Windows of all types (casement, tilt & turn, sash, etc.)
It covers a range of performance criteria, including:
Resistance to mechanical loading and impact
Lock manipulation and forced entry attempts

Glass and frame security integrity
Hardware durability

Essentially, a PAS 24-certified window or door has been proven to resist break-in attempts for a specific duration under strict test conditions.
Understand PAS 24 & why they matter when choosing windows & doors | The Fenestration Network
HOW PAS 24 TESTING WORKS

Testing for PAS 24 is carried out in specialised laboratories by accredited third-party organisations. The goal is to simulate real-world burglary attempts.

Here’s what happens during testing:

1. Mechanical Load Testing – Heavy loads are applied to key areas like locks, hinges, and corners to assess structural strength.
2. Manual Attack Testing – Technicians use tools such as crowbars, chisels, and screwdrivers to try to force entry.
3. Impact Testing – Panels and glass are struck repeatedly to simulate blunt-force attacks.
4. Manipulation Tests – Locking mechanisms are tested to ensure they can’t be easily picked or tampered with.
   Only products that withstand these rigorous procedures without failing are granted PAS 24 certification.
   Understand PAS 24 & why they matter when choosing windows & doors | The Fenestration Network
   WHY PAS 24 CERTIFICATION MATTERS

For homeowners, PAS 24 is more than just a label — it’s a guarantee of protection.

Here’s why it’s important:

Proven Security: Products are tested under strict conditions to ensure they resist forced entry.
Insurance Compliance: Many UK insurance providers recognise PAS 24-certified products and may offer lower premiums.

Peace of Mind: You can rest easy knowing your home meets modern safety expectations.

Compliance with Building Regulations: PAS 24 can help developers and installers meet Approved Document Q of Building Regulations, which mandates security in new dwellings.
Understand PAS 24 & why they matter when choosing windows & doors | The Fenestration Network
OTHER RELEVANT SECURITY STANDARDS

While PAS 24 is the most recognised, it often works alongside other certifications:

Secured by Design (SBD): A police initiative promoting crime-prevention through building design. To earn this accreditation, products must be PAS 24 compliant.

BS EN 1627: A European standard similar to PAS 24, focusing on resistance classes for windows and doors.

BS 7412: Pertains specifically to uPVC window performance, including security and durability.
Understand PAS 24 & why they matter when choosing windows & doors | The Fenestration Network
CHOOSING PAS 24-CERTIFIED WINDOWS AND DOORS

When choosing new windows or doors, always ask your installer or manufacturer:

Are your products PAS 24:2022 certified (the latest version)?

Is certification valid for both the frame and hardware?

Do they include multi-point locks and reinforced glazing?

You’ll typically find PAS 24 certification on the manufacturer’s datasheet, technical documents, or product labels.

For aluminium systems, check brands like Smart Systems, AluK, and Cortizo, which all offer PAS 24-compliant ranges.
Understand PAS 24 & why they matter when choosing windows & doors | The Fenestration Network
FAQS

Q: Is PAS 24 a legal requirement?
A: For existing homes, it’s not mandatory — but it is for new builds and major refurbishments under Building Regulations Part Q.

Q: Does PAS 24 cover the glass too?
A: Yes, the standard includes tests for glazing systems, ensuring glass cannot be easily removed or broken to gain entry.

Q: Can uPVC windows be PAS 24 certified?
A: Absolutely. PAS 24 applies to all materials — aluminium, uPVC, timber, and composite.

Q: How can I check if my windows are PAS 24 compliant?
A: Ask your installer for the product’s test certificate or check the manufacturer’s specification sheet.
Understand PAS 24 & why they matter when choosing windows & doors | The Fenestration Network
CASE EXAMPLE

A homeowner in Nottingham upgraded their 15-year-old front and back doors to PAS 24-certified aluminium doorsets. Within weeks, they noticed not only improved peace of mind but also enhanced insulation and quieter interiors thanks to the improved door seals and glazing.
Understand PAS 24 & why they matter when choosing windows & doors | The Fenestration Network
CONCLUSION

PAS 24 certification is one of the most important indicators of quality and safety in windows and doors. By choosing PAS 24-compliant products, you’re investing in more than security — you’re investing in peace of mind, long-term value, and protection for your home and family.