Glasswool vs Polyester

Glasswool vs Polyester


The age old question – which is better.



  • Manufactured from recycled glass which is derived from natural mineral such as sand.
  • Its non combustible  and wont catch fire like other insulation materials
  • Bio-soluble posing little or no risk to health
  • Very cost effective – compared to other insulation materials
  • Vermin resistant
  • Easy to install and cut, soft to touch
  • Naturally a good acoustic barrier



  • Manufactured using 100% polyester fibres made from plastic bottles
  • Soft to touch, and can be torn across the width
  • Does not absorb moisture – very good for coastal or exposed areas such as underfloors
  • Vermin resistant
  • Good for those who have serious dust allergies


Both have its their merits, don’t be fooled by the some companies saying Glasswool is ichy because a lot has changed over the years so ask yourself “how many times have you jumped in the ceiling naked and rolled in the insulation” in other words insulation is about helping to keep your home warm in the winter and cooler in the summer.  Glasswool is a real value for money solution, but isnt recommended for exposed underfloors with high moisture, we would recommend Polyester in these areas.

Warmer Kiwi Homes grants 

Warmer Kiwi Homes grants 


EECA is offering “Warmer Kiwi Homes grants”, for ceiling and underfloor insulation homes.


However, around 90% of Kiwi’s ARENT eligible, as an ECCA approved Panel partner we can help by providing a competitive quote ECCA approved Insulation products at Warmer Kiwi Homes recommended pricing for insulation.


To be eligible for a Warmer Kiwi Homes Grant you will need to be

  • A home owner in a house built before 2008
  • The homeowner has a community services card or supergold combo card, Or
  • Own and be living in a home in an area identified as lower-income Or
  • Be referred by the Healthy Homes Initiative.


Contact Premier Insulation on 0800 467 855 or

Auckland Council Retrofit your home

Auckland Council Retrofit your home   Premier Insulation is proud to be an official partner with Auckland Councils Retro fit “insulation, Heat Pumps and ventilation” to your home program. Up to $5,000 incl gst worth of assistance per Rate payers property in order to help make your property a healthier, warmer and dryer home.  With […]