Mercury Cosy


Making your home healthy has never been easier!

We've partnered with Mercury to provide a tool that performs an online assessment of your home, and recommend products to make your home warmer, drier, healthier and more energy efficient.


Free Home Assessments for Owner-Occupiers

Designed to take the hassle out of making your home healthier, the free Cosy Home Tool gives you a breakdown of how you can make your home warmer and healthier, and an estimate of how much it will cost.

Click here to Get Your Personalised Report


Healthy Homes for Less

The assessment also shows you a cost estimate, and let's you know if you are eligible for the Warmer Kiwi Homes 80% or more subsidy on insulation and heating. We've also got some exclusive discounts on these products of up to 20%.

You can also get an exclusive Mercury Cosy discount on any GreenSide services you purchase.

Find out how you can create a warmer, healthier home at


Not with Mercury?

Join today and you'll get $200 credit on our two year fixed plan.

Plus, with handy online tools like our Usage Monitor, you'll be able to access, manage and control your home's energy usage and costs online, 24/7.

Find out more:

You May Be Eligible for a 80% or more Subsidy Book Your FREE Home Assessment TODAY

As an Owner-Occupier You May Be Eligible for a Warmer Kiwi Homes Subsidy