what we do

Retro Fit home insulation

GP Insulation specializes in Retro Fit home insulation to greatly reduce energy costs, and improve home comfort.
Heat rises. By putting a secure, heat-impermeable "lid" on your living spaces, you slow the migration of heat through your ceiling. Installation of underfloor significantly reduces heat loss and drafts. You’ll have warmer feet and a warmer home! We offer professional services and competitive prices. Contact us today for your free quote.

Insulation removal

GP Insulation remove old damaged insulation from your home caused by deterioration of older products, damage from rodents burrowing and making nests. Homes that have had broken roof tiles and loose roof iron allowing wind and rain damage, to break down existing insulation.​
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Ceiling Vacuum Insulation Removal

​We have state of the art equipment to vacuum your ceiling space clean. We will remove old insulation from your ceiling. It may not be a pleasant job, but our industrial vacuum and huge vacuum bags turn a horrible, filthy chore into a routine cleaning job. 

​We like to get every bit of "nasty" out of the ceiling.  We go the extra mile to see that we have a perfect Blank canvas for our work.

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​Ceiling Insulation Installation 

Jet Stream Max

Jet Stream Max is a soft, granulated mineral wool thermal and acoustic insulation, manufactured in selected North American plants by melting and spinning a blend of inert, natural minerals. ​

It has all the advantages of glasswool batting materials without the inherent installation disadvantages, so achieves superior installed performance. It is the only formaldehyde free, non-combustible, clean and durable blown insulation that has been used to insulate New Zealand roof attics since 1995.

​Jet Stream Max installerPremium quality Jet Stream Max forms a consistent white layer similar to cotton wool in accessible roof attics. It eliminates energy wasting gaps, joints or vented cavities between the insulation and lining common with blanket or batting.

Total (installed) thermal effectiveness of Jet Stream Max is superior to batting or blanket, as it covers the full ceiling – including over and under timber joists – without joints, gaps, thermal bridging, or vented cavities commonly found between linings and batting or blanket insulation.

Batting or blanket materials need at least two layers to achieve the same installed thermal effectiveness of Jet Stream Max that only requires simpler installation of the design thickness and weight.

Detailed product specifications available: Technical Data PDF.

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​Underfloor Insulation 

Mammoth Modern Insulation

​​Underfloor insulation warms your home by reducing draughts and heat loss. Heat loss through an uninsulated floor is estimated at 12-14%* and, if you have sufficient crawl space under your floor, adding insulation is a cost effective way to create a warmer, healthier home.

Mammoth underfloor insulation is made from 100% polyester fibres and does not deteriorate with moisture resistant and unlike polystyrene insulation won't affect electrical wiring.

What our customers say...

​GP Insulation made the whole job really straightforward - they answered all the questions, the price was competitive, they did the job as arranged, and the work done was good quality. Getting work done on Waiheke can sometimes be problematic but this was great.

Very happy with the work done by GP Insulation. Turned up when they said to look at the job. Quote was very competitive, they turned up to do the job when they said they would and did a good job. Would certainly recommend​

​Good communication and job done on time and on budget. Happy to recommend this company for any similar job.”