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PAS24 Certified Windows

Strengthening Security with Robust Window Designs

Timber windows add enduring beauty and character to any home or property. Our PAS24 certified windows are meticulously crafted and precision-engineered to the highest standards, undergoing testing to current building regulations for weather resistance, security and thermal efficiency.

From traditional sash windows to modern casement designs, the PAS24 certified timber window collection is expertly crafted to deliver exceptional performance and long-lasting durability. Each product is built to withstand the demands of the British climate while requiring minimal maintenance.

Have a Project in Mind? Let’s Talk.

 At Derwen Joinery, we believe every exceptional piece begins not with timber, but with a conversation. We are genuinely interested in your ideas, your questions, and the unique details that will make your project a perfect fit for your space. Understanding your vision is the most crucial part of our craft. Get in touch with us today to discuss your plans and let’s begin the journey of bringing them to life.

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Smarter design, Greener living, Warmer homes

With energy prices rising, efficiency matters more than ever. Our windows are fitted with high-performance glazing and naturally insulated timber frames to keep warmth in. 

Better than Triple glazing: we offer vacuum glazing technology that is thinner, warmer and quieter than triple-glazing. Ideal for both retrofit and low-energy builds.

Secure design, Safer homes, Lasting confidence

Our windows are designed with both beauty and security in mind. All components meet PAS24 standards, ensuring peace of mind alongside timeless design. With high-spec locking systems subtly integrated into the frame, meeting your security needs and regulatory standards. 

Whether you’re refurbishing a Georgian townhouse or fitting out a modern eco-home, you won’t have to choose between form and function. 

Frequently Asked Questions (FAQ)

What is PAS24?

PAS:24 is a British standard that sets out the requirements for enhanced security performance of doors and windows. Products certified to PAS:24 have undergone rigorous testing to ensure they meet stringent security standards, providing peace of mind to homeowners regarding the safety and security of their properties.

What is Approved Document Q?

In England, Approved document Q – Security of Dwellings took effect in October 2015, supporting the existing Schedule 1 to building regulations.

These regulations require that all new-build properties are constructed to resist unauthorised access to any dwelling, as well as to any part of a building that provides access to a flat.

To achieve compliance, windows and doors must be manufactured and tested to meet the PAS 24 standard or an equivalent recognised security specification.

How are PAS24 Windows and doors Tested?

PAS 24 windows (and doors) are tested to ensure they can withstand common methods of forced entry used by burglars. The testing is carried out under controlled conditions by accredited test laboratories

Tests include;

  • Mechanical Loading
  • Manual attack
  • Window and hardware manipulation
  • Weather Resistance
What range of PAS24 windows do you supply?

Flush Casement Windows

Box Sash Windows

Spring Sliding Sash Windows

 

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