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.

learn more

Watch External Wall Insulation Install

Watch Video

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

Watch Video

wall insulation
news and blog

The Cafe – Wall Insulation Interview June 2018

Watch – The Cafe – Discussion with Hamish on Wall Insulation!  

Wall Insulation – Add extra layer of warmth

Great Article Posted on NZ Herald – By Diana Clement – 23 May, 2018 Retrofitting wall insulation should be done after checking for damp and borer. Many homes have insulation in the roof and under flooring. But what about the heat that is escaping through walls? Wall insulation makes a big difference to the comfort […]

Cavity Wall Insulation Benefits

CosyWall Insulation, like most cavity wall insulation products is often recommended as an ideal way to conserve energy and lower your monthly bills. If your trying to decide if cavity wall Insulation is right for you, take a look at some of the benefits below. There are many advantages that come with having cavity wall […]