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Insulate Your Walls

CosyWall is our blown-in wall insulation system, and it can be used to insulate most types of exterior and interior walls. Choose the right application for your home below.

CosyWall Thermal

CosyWall Thermal is our industry-leading blown wall insulation product for New Zealand homes. It can be installed using three different methods depending on your home and project type — choose the application that best suits your situation.

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Installing insulation into an external wall from outside

External
Walls

Installed through external cladding

Ideal for most existing homes. Small holes are drilled through the weatherboard, brick or other cladding from outside. Insulation is blown in and every hole is sealed. We ensure your home is fully weathertight and, on painted cladding, ready for a fresh coat of paint. Minimal disruption, no interior work required.

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Installing insulation into an internal wall

Internal
Walls

Installed through existing plasterboard

Where exterior access isn’t practical, CosyWall can be installed from inside. Small holes are drilled through the internal plasterboard, insulation is blown in, and the holes are patched and finished, ready for a fresh coat of paint. A tidy, effective interior solution.

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Installing wall insulation with the linings off

Linings Off
Installation

For renovation and new build projects

The perfect solution when you’re already renovating or rebuilding. With internal linings removed, a mesh and BIB barrier system is installed before CosyWall is blown in — delivering maximum thermal performance to NZS 4246:2016 standards.

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CosyWall Acoustic

CosyWall Thermal significantly reduces the amount of noise that transfers through walls, including traffic noise from outside, or sound travelling between rooms inside your home.

Reduce Noise in Your Home

CosyWall Acoustic is the same trusted blown insulation product, applied where sound control is the priority. It can be installed using any of the three installation methods above, making it a flexible solution for both new builds and existing homes. If you’re looking to create a quieter, more comfortable living environment — CosyWall Acoustic is the answer.

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