Energy efficient homes
What we do
Our team are on a mission to make Wellington homes warmer, drier and more energy efficient. From advice to install, we do it all—including free home assessments to evaluate your home’s needs, full supply of the products needed for the job and end-to-end installation and servicing.
We are a registered not-for-profit and we work with a range of different brands. When you choose Sustainability Trust, you can be confident you’re receiving trusted, expert and un-biased advice.
• Free assessment and quote
• Qualified home assessors
• Personalised, honest advice
• Full supply and install
Our services
Hot water heat pumps
Unlike traditional hot water cylinders, hot water heat pumps pull warmth from the air and transfer it to a cylinder for efficient hot water. The result? Less electricity used, meaning lower power bills and a much smaller carbon footprint for your home.
Heat pumps
A heat pump installation can seriously upgrade the comfort of your home—giving you warmth in the colder months as well as cooling when it’s hot. As the most efficient form of indoor temperature control, it’s easy on the old power bill, too!
Central heating
Central heating (Ducted heat pumps) spreads warmth evenly throughout your home. This works with a super-efficient heat pump unit that pipes air to rooms through discreet vents. They’re cheaper to run than you might think, and our ducted heat pump systems cool too—so you're sorted year-round.
Insulation
Having good insulation is one of the smartest, most cost-effective things you can do for the health of your home. Ceiling and floor insulation keeps the heat in, the damp out, and your power bills down—winter and summer.
LED lighting
Lighting typically contributes to 5-15% of your total power bill. Switching to LEDs is one of the easiest ways to save some money. They're brighter, they last a lot longer and they are fire safe—which means you can insulate over them and close up those gaps.
EV charging
Owning an electric vehicle is a great way to reduce your dependence on expensive fossil fuels. Setting up a reliable home charging system will ensure you get from A-to-B efficiently. We make it straightforward with smart home EV chargers installed to suit your lifestyle (and power plan).
Ventilation
Moisture and poor airflow in your home can cause mould and unhealthy living conditions. It is also harder to heat damp air—meaning your heating has to work overtime. Our ventilation solutions tackle these problems effectively, improving airflow and reducing dampness in your home.
Healthy Homes
If you’re a landlord, meeting the Healthy Homes Standards can feel a bit complicated. We’re here to simplify the process. We'll walk you through the heating, insulation, ventilation and moisture control, plus recommend necessary upgrades and issue a compliance certificate.
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Savings per year with insulation
Less energy used by LED lights
Lower emissions when you switch from gas heating to a heat pump
Estimated figures from EECA
