COSY WALL
INSULATION

CosyWall Insulation (CWI) is an external wall cavity insulation system (EWCIS) designed to insulate the walls of older homes. It provides thermal and acoustical insulation to existing wall cavities and is installed without the cost and hassle of removing the internal linings. Installation is done via small holes through the external cladding, or from inside via holes in the internal linings. The result is high installed R-values and a warm cosy home. CosyWall insulation has been successfully growing since 2002 based on three core principles;

- Using a Great Product.
- Developing Proven Methods.
- Ongoing Training and Auditing.

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why choose
existing wall insulation

  • Cavity wall insulation saves money and our nations limited energy resources.
  • CosyWall is non-combustible
  • External wall insulation can make your home warmer, drier, healthier
  • High installed R-values in comparison to other exterior wall insulation.
  • CosyWall is NZBC compliant and CodeMark certified
  • CosyWall is safe and has no added formaldehyde
  • CosyWall is a dry fibre existing wall insulation system that utilises water repellent glasswool insulation
  • CosyWall will not shrink or settle over time
  • Available nationwide through our specialist retrofit wall insulation resellers
  • Proven New Zealand history of use.
  • Fills up the gaps that are often left by a blanket or segments.

Watch Internal Wall Insulation Install

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wall insulation
news and blog

5 places your home loses the most heat

To tackle the cold this upcoming winter, it’s important to understand where your home loses the most heat. Knowing where you’re losing heat will help you figure out the measures you need to take to ensure your home contains its warmth this winter. Here are 5 places your house loses the most heat.

How to keep your home warm this winter

We’re only few months away from winter, so it’s time to start preparing! Colder weather results in colder homes, which can affect our health. It’s important to start thinking about how to protect you and your family from cold’s, flu’s, and other nasties this winter – including how to keep your home warm to help […]

We’re giving away a CosyWall Insulation Package worth $5000!

We’re only a couple months away from Winter, so it’s time to prepare ourselves and our homes for the colder weather. More than 75% of New Zealand homes have insufficient insulation, which can cause uncomfortable living conditions, and serious health risks.