Home insulation supply and install


Get insulation for your home or your rental installed by Sustainability Trust for a safe and professional service.  

We are Wellington region's leading certified, reputable and professional insulation supply and install provider. Over 15 years since 2003 we've insulated more than 15,000 homes across Wellington, Upper Hutt, Lower Hutt, Porirua and Kapiti Coast. See what people say.

Sustainability Trust services include insulation assessment, fix-up, top-up and full install of long lasting and energy efficient insulation from leading brands such as GreenStuf (made from recycled plastic) and Pink Batts (made from recycled glass).

Find out more about products or what and why insulation standards are recommended.

We're so proud of our install expertise and quality that all insulation installations come with a three year workmanship guarantee to NZS:4246 (2016) standards.

All our in-house installers are experienced, trained and accredited with the Insulation Association of New Zealand, registered Site Safe and work within a robust health and safety framework.

Since 2003 we've partnered with EECA's Warm Up New Zealand: Healthy Homes programme, warming up the homes of low-income people with subsidised insulation. As partners our insulation install quality standards are regularly, independently audited - helping ensure we remain top of the game. Find out more about subsidies and finance. 

We're a founding member of the Community Energy Network, working with like-minded organisations across Aotearoa to create healthy homes and help landlords meet legal standards. We've even co-created the industry leading standard and training for evidence-based healthy home advice and support - the Home Performance Advisor framework.

All profits from our supply and install sales are invested in our award-winning community programmes that empower people to live sustainably. From funded insulation for people in need, to education inspiring kids to love nature, an inner-city waste recycling hub and much more. 

Choose Sustainability Trust today for your professional install, and help to live sustainably. 

Our in-house home energy assessors, insulation and electrical installers are trained, accredited and experienced professionals.

Contact us for your home heating solutions and energy efficiency advice: Call 0508 78 78 24, option 1 or click below to arrange an assessment.

Book an assessment