Wall insulation is the second most important area you should look at, after your ceiling insulation but before your windows, particularly since an estimated 30-40% of the heat in your home is lost through the walls. Retro-fitted Wall Insulation in Bay of Plenty is perhaps the least known and applies to most older properties. If your house was built before 1990, it probably has no wall insulation! Insultech Insulation uses a product called CozyWall Insulation to Retro-fitted wall insulation. CozyWall Insulation can only be installed by trained, licensed professionals and requires the certified CozyWall installer drilling small holes into your inner or outer walls and blowing in the insulation. CozyWall Insulation (CWI) is an external wall 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 cozy home.