Cavalok

The high-performance, no-hassle way to create openings in new buildings.

Specifying the Cavalok cavity closer takes all the hassle and uncertainty out of creating windows and door openings in new buildings. You will be able to quickly create precise, rigid, robust openings that are fully compliant with Building Regulations – saving you time and money in the construction process.

First choice for 50mm-300mm cavity walls.

The Cavalok cavity closure system is designed to create window and door openings while sealing cavities between 50mm and 300mm wide. It is fully compatible will all types of building, whether masonry, steel or timber-framed, and with PVC-U, wood, metal and composite windows and doors.

We supply the full range of Cavalok products including the Big Block and Flameblok plus a structural cavity closer.