Contact Us

Bonded Bead Cavity Wall Insulation

Research indicates that over 30% of heating is lost through the walls of your home and that Cavity Wall Insulation can help prevent these losses.

Alpha Insulation is an approved installer of Bonded Bead Cavity Wall Insulation and Walltite Cavity Foam.

Our systems have an effective thermal conductivity which helps prevent the escape of heat through the walls.

How is Cavity Wall Insulation fitted?

A series of holes are drilled in an approved pattern (click here to see System Certificates) and material of your choice is injected through these holes. Using this approach guarantees a complete fill… Due to the unique flow characteristics of the bonded bead cavity wall insulation within a cavity wall situation, the number of holes required is kept to a minimum.

Cavity Wall Insulation (Bonded Bead)

Bonded Bead is the most cost effective way of insulating your property. It is installed by injecting bead using a specified and approved system designed to ensure a complete fill of the cavity wall area. 

The polystyrene used for CWI is a bead which is usually combined with an adhesive at the time of injection. Polystyrene beads are produced to a specified size and density which remains unaltered during the installation process.

The installation must be carried out in accordance with the relevant BBA Certification and System Suppliers installation Manual. 

Once installed, the bead filling in the cavity will remain an effective insulant for the life of the building and will require no further maintenance.

The use of polystyrene bead for cavity wall insulation does not prejudice the fire resistance properties of the wall.

The material is resistant to water penetration and will not transmit water across the cavity by capillary action or from below dpc level. Any rainwater penetrating the outer leaf will drain harmlessly to the footings. The product is not designed to be a water vapour barrier.

Arrange a Quote

Fill in your details in the form below and one of our team will call you to arrange a survey at a comnvenient time.