FAQ’S

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How do you differ from any of the other places?

  • We aim to be “hassle free” see our client videos.
  • More affordable through long term suppliers relationships in place.
  • We offer an above average product and service eco friendly and sustainable.
  • Both our insulation products are guaranteed 50 years.
  • Our installers are skilled professionals who take real pride in their workmanship not just casual laborers.
  • We are straight up. We come in at our very best price first. No over inflated prices, false subsidies and huge discounts made by over inflating prices to begin with.
  • We really care and will go out of our way to make sure your experience is a good one and you want to utilize us again and again. We are a family business not a large corporate we value longterm client relationships.
  • Our installers are locals based in each area. Oamaru/Timaru and Invercargill to keep costs down.
  • When we do travel for rural or out of town jobs, we do our very best to keep travel costs at a minimum.
  • We can cut manholes and widen them in the underfloor to ease the process of finding a laborer

What does the R Ratings all mean?

R is how energy efficient an insulation product is at keeping in the warmth the draughts out.

What are the new Standards every ones talking about?

The New Insulation Standards NZ4246.

I heard we do not have to do it until July 2019 is this right?

No unfortunately this is not correct. The new standards came in June 2016 they are already in forced.

What does this mean can I be in trouble?

Yes if your property is that bad with dampness and you get audited you can have fines up to $4000. You will however get a certain amount of time to fix this.

So why do they say July 2019 then?

There is too many rentals and homes that do not meet the standards to bring up to the standards and not enough installers in NZ to do them. The Govt has allowed this time to get them up to standard however the sooner you do it the cheaper it will be.

Why will it be cheaper now?

Supply and demand. Unfortunately because of the sheer volume of rentals having to be done and general public buying and selling homes also want to be to standard to future proof themselves. This exceeds physically the amount of time left to install. Suppliers will be hiking up prices of products they have already started.


What does this mean who does if effect in the South Island??

  • To be energy efficient
  • If you rent out a residential property
  • Or want to future proof the sale of your home or buying a home
  • If your a tenant in a property look at your lease agreement as it will ask you how your insulation is before you sign it

South Island standards are as follows:

Step 1
All 3 surfaces of your property need to be assessed. Yes all 3!

  • Ground for dampness? Does when you press your thumb into the ground it leave an imprint? What if its not damp now but can be certain times of year?? best to do it!
  • So what product?
  • If damp it will require a standard of thickness of black polythene fitted with tape and pins to NZ standards 20% on foundations and no gaps.

Can’t I go buy this and do myself from a hardware store?

  • Not your thin traditional stuff from the garden center most people buy then come to trouble trying to install it themselves as they have no idea how to roll it out when under such a small space. They come in different forms. Then it won’t meet the standards as has to be done by professionals.

Does every house then have to have underfloor insulation?

  • Underfloor insulation is required if we can get under your house physically!

How is it done?

  • Product goes right in between your underfloor joists of the house, no gabs and secure and meets 100mm thick minimum and a grade of product like R1.5 Mammoth polyester is best as leak proof moisture proof. We staple ours to the standards for extra peace of mind.

What happens if the underfloor space is low?

  • If we cannot access the underfloor because it is too low then you do not need to have it. Legal height is 450mm for H & S reasons for us to install, however we have been known to go lower when we have small skilled staff available.


Is there much difference with underfloor products?

  • Yes heaps watch our video! Traditional batts are not suited for underfloor they break down. All grades of polyester out there make sure you get Mammoth so you do not end up with an underfloor like this!


Ceiling is the place to start as you loose over 40% of your heat if not to standards.
What is the standards for Ceiling?
Its R3.3+

Whats this mean??
It means it has to be the next product over R3.3 rating.ie 170mm or above. Ours is R3.6 which is 175mm of thickness and meets the standards. You can choose R4.1 which is 195mm.

Do I need to go 4.1?
Only if you wish to. If you have nothing in the ceiling at all its advisable however most homes have some insulation already therefore the R3.6 is absolutely fine.

So your saying R3.6 is fine?
Yes totally fine is guaranteed 50 years by Knauf.

So if I go to a hardware store I can get insulation and do it myself right?
Yes you can of traditional batts. Be aware R3.2 traditional batts will not meet the standards though you would need two layers!. Also H & S wise it is so easy to step through your ceiling. The heat also in a ceiling can be high and dangerous not too mention the dust & vermin.

So what else do I need to consider if I did my own insulation?
A compliance certificate to meet the NZ4246 standards is only issued when installed by Insulation professionals. They then are responsible when audited.
Do it once do it right with Dunbars.

Guarantee of 50 years! I won’t be here in 50 years so why bother?
Simply because you future proof your property to sell or rent. In both cases you will need to meet the standards as people buying will add on the cost of the insulation anyways. To rent it out you will need to still do it. You miles well enjoy and reap the benefits of an energy efficient home now be warmer lower power bills and peace of mind.