Negawatt Resources Ltd is an energy efficiency business, offering products and advice on the whole building envelope, residential and commercial. As the longest established energy efficiency entity in New Zealand, we have developed considerable experience and expertise in delivery and application. Performance rather than product specific, we carefully analyse the needs of our customers and recommend appropriate solutions that we have tried, tested and understood.

Negawatt are now nationwide distributors of all Mammoth thermal insulation products direct to your door or building site. Dowload Brochure.