Blown-in Wall Insulation for a Warmer Home

Most older Southland homes have little to no wall insulation, which means heat escapes through the largest surface area of your home. Wall insulation can make one of the biggest differences to warmth, comfort, and energy efficiency. At Awarua Synergy, we now offer blown-in wall insulation, meaning you can now insulate your walls without major renovations. 

Why Wall Insulation Matters

Even if your ceiling and underfloor are well insulated, uninsulated walls allow a huge amount of warmth to escape — which means your  home still feels cold. Insulating your walls creates a noticeable improvement in overall comfort.
 
    • Walls lose 20–30% of total heat
    • Stabilises indoor temperature
    • Reduces condensation and dampness
    • Improves heat pump performance
    • Makes older homes feel significantly warmer

Beat the chill factor – chat to the expert team at Awarua Synergy today on 0800 WARM SOUTH for your FREE, unconditional home energy health check!

We've Partnered With Safe-R to Offer CosyWall Blown-In Wall Insulation

To bring Southland homeowners the very best wall insulation solutions, we’ve partnered with Safe-R to offer CosyWall, one of New Zealand’s leading blown wall insulation systems. This partnership allows us to provide a high-performance, proven product that can be installed into existing homes with minimal disruption. CosyWall has been engineered specifically for New Zealand conditions, making it ideal for the cold, damp climate of the Deep South. By working with Safe-R, we can ensure every installation is completed to the highest standard — giving you warmer walls, a more comfortable home, and long-lasting energy savings.

How Blown Wall Insulation Works

Small holes are drilled into the exterior or interior linings, insulation is blown into the cavity, and the holes are sealed. The process is quick, tidy, and creates a fully insulated wall system — without removing plasterboard.

CosyWall can be installed into existing homes with:

    • Brick
    • Weatherboard
    • Fibre cement
    • Stucco

This makes it a game-changing option for many Southland houses.