Insulated Cavity Closers & Fire Socks

These products are suitable for both new builds and refurbishment projects. Our range includes leading cavity closure systems and fire socks for cavity walls that meet current building regulation standards.

Our Cavity Closers & Fire Protection Solutions

We stock cavity closers in multi width formats to suit common cavity sizes from 50mm to 150mm, such as the popular Easi-Close 2.4m length. Each unit provides a continuous thermal break around doors, windows, and structural openings, minimising cold bridging and helping maintain consistent insulation performance. 

Manufactured with rigid insulation cores and PVCu outer profiles, they’re lightweight, easy to cut, and quick to install.

Complementing the closers, our fire socks for cavity walls (which include cavity stop socks), are essential for maintaining fire resistance in vertical and horizontal cavities. These mineral wool barriers expand in the event of a fire, effectively blocking flame and smoke spread between adjoining wall sections. 

Designed for use at party walls, floor junctions, and eaves, they form part of a compliant passive fire protection system.

Both product types meet relevant thermal and fire performance standards, supporting compliance with Part L and Part B of the Building Regulations.

To explore related thermal and acoustic materials, see our insulation category, or explore the full insulated cavity closers and fire socks range for a variety of product options and specifications.

Why Customers Buy From Emerys

Emerys has supplied reliable building materials to trades and homeowners across Stoke and Telford for over a century. 

Our team is here to offer expert advice on choosing the right cavity closure and fire protection products for your build.

Emerys provides local delivery across Stoke and Telford and supports trade customers through dedicated pricing and account management with an Emerys trade account.

Builders and contractors choose us because of our dependable stock availability, competitive pricing, and professional guidance across all insulation categories, including cavity closers and fire socks.

Order Insulated Cavity Closers & Fire Socks Online

Purchase insulated cavity closers and fire socks online today for fast delivery direct to your site or home. Whether you need to improve energy efficiency or ensure fire compliance in cavity wall systems, Emerys provides premium materials and knowledgeable support. 

If you have any additional questions, please feel free to contact us.