We sell and install New Zealand wide

About Us

Mammoth™ insulation is manufactured in New Zealand by InsulPro.

Mammoth™ modern insulation is manufactured by InsulPro - a New Zealand owned and operated manufacturer of polyster thermal and acoustic insulation - supplying the local New Zealand market and export markets with a range of insulation products for the home or commercial building.

We have manufacturing facilities in Auckland and Milton, near Dunedin and are backed by a team of experts.  Visit the InsulPro website.

Mammoth™ polyester insulation products help create warmer, healthier, more energy efficient environments which helps to improve people's health in addition to reducing carbon emissions.  Our thermal and acoustic insulation products are designed to maximise thermal performance across the construction system and products independently tested proved to outperform their product R-values.       

A Sustainable Choice

carboNZero certification

Our business is under-pinned by a philosophy of creating better environments which extends to more than just the product we manufacture.  It incorporates the way we operate the business, our manufacturing processes and the way we help our customers create warmer, healthier more energy efficient environments - all while protecting the largest environment of all, our planet.  

We have proudly been awarded the World's first insulation manufacturer to be carboNZero certified.

We feel it is important to consider the environment in all facets of our business and so measuring and monitoring our impact is the only way to understand how we can improve.  Our measured carbon emissions will be off-set, monitored and continually reduced through a variety of smarter business practices.  We can also boast that all our Mammoth polyester insulation products are Red List Free.

Red List Free

The Living Building Challenge™ developed a Red List of prohibited materials under the Declare Programme to provide transparency around the building products.  Declare is a 'nutrition label' for the international building industry and is a voluntary self-disclosure programme aiming for healthier and more ecological products in construction.  Red List Free products are shown to be free from Declare's red list of ingredients.

Click here to learn more

We worked alongside one of our environmentally conscious customers to construct Tuhoe headquarters in Whakatane - New Zealand's most environmentally and socially sustainable building - built in accordance with the stringent Living Building Challenge's guidelines.

Environmental Choice

Environmental Choice is the official environmental labelling programme. This programme, which commenced in 1992, operates independently from the government but the label is government owned and endorsed. Since 1992, the government has financially supported the scheme, both directly and indirectly.  The following Mammoth products have Environmental Choice certification:

  • R2.5 Mammoth Wall Sections
  • R2.6 Mammoth Wall Blanket 140mm 
  • R2.8 Mammoth Wall Sections 140mm 
  • R3.0 Mammoth Wall Sections 140mm 
  • R3.6 Mammoth Wall Blanket
  • R4.0 Mammoth Wall Blanket
  • R1.5 Mammoth Underfloor Blanket
  • R1.8 Mammoth Underfloor Blanket
  • R1.4 Mammoth NOVAfloor
  • R1.8 Mammoth Multi Underfloor Sections
  • R1.9 Mammoth Multi Underfloor Sections

From Waste to Warmth

We take fibre made from plastic bottles, which would otherwise be waste, and manufacture the fibre from the bottles into polyester insulation that creates warmer, healthier homes and buildings.

The Mammoth thermal and acoustic insulation range is made from 100% polyester fibre.  Polyester is made from a substance called PET, which is what plastic bottles are made from. Another benefit is that PET can easily be recycled.  Plastic bottles made from PET can be washed and ground up into flakes, heated and then extruded into polyester fibre. This is how the recycled fibre used by InsulPro is made.







InsulPro has worked with recycled polyester fibre for over a decade and is committed to using the maximum possible in all products.  Along with using recycled fibres, our product is recyclable, this means all of our waste is able to be fed back through the manufacturing process. Polyester, PET, is the same material that plastic bottles are made from.

Chemical Free

All Mammoth products are safe and easy to work with.  They will not cause irritation when touched and are chemical free – no pesticides, insecticides and formaldehyde.  All our polyester insulation products are thermally bonded which means there are no glues or bonding agents.

New Zealand Green Building Council

Homestar and Greenstar is New Zealand's environmental and energy efficiency rating for both new and existing homes.  It's a voluntary rating system developed by BRANZ and the New Zealand Green Building Council (NZGBC).

The Homestar rating scale goes from 1 (very poor) through to 10 (world class).  Points are awarded in nine credit categories, with the most important category being Energy, Health and Comfort.  High levels of insulation (ie: above the minimum Building Code requirements) using products such as Mammoth, will help homes achieve higher Homestar ratings.  All Mammoth products with Environmental Choice certification contribute to Homestar and Greenstar accreditation.



Mammoth assessment and install services

Our Mammoth™ home assessment and install teams are fully trained and professional having assessed and insulated over 10,000 kiwi homes.  Our installation partner is Smart Energy Solutions Ltd.

We are proud to be supporting New Zealand by creating warmer, healthier homes and buildings as well as investing in research and development.

Visit the Smart Energy Solutions website


Mammoth™ Television Commercials