I found this company on a website which listed them as an accredited supplier/installer. I did not know very much about insulation and found that each company I rang told me that the type of insulation they sold through their company was "the best".
Fair Dinkum sold different types of insulation. They came to my house, arriving on time, and explained the different types of insulation available and what would be best suited to my house and why. Two men came to the house to provide the quote and both were extremely knowledgeable about their products and the pros and cons of each different type of insulation. They answered all of my questions and did not seem to mind the multiple questions I was asking them. Plus, they gave me a mobile number to call if I thought of anything else to ask (which I did after discussing with my husband and father) and I called that number. The guy was busy when I called but called me back promptly. I was very impressed.
We went with this company and had foil insulation installed (we have an old home with a tin roof and no roof sarking so foil was the best option). The men arrived on time and carried out the job in a fast and professional manner. Despite the recent bad publicity about foil insulation, we are very happy with ours. It does exactly what we were told it would and we have had no problems with it at all.
Our insulation costs were covered by the government subsidy however if I ever have a need to install insulation at a different property I will have no hesitation in using Fair Dinkum again.
Fair Dinkum also quoted accurately - they charged for the actual job rather than stating the job would be for the maximum amount the government was paying. This also impressed me as I had had previous companies come in and not even measure up! Fair Dinkum proved themselves to be professionals not rip-off merchants taking advantage of the government's insulation rebates.
Fair Dinkum has been the best insulation company I have ever dealt with (I have had quotes and work done at other properties in the past).

Approximate cost: $1300

They sent a guy out promptly to do the quote. He was very knowledgeable about the product.They were very competitive and were available to supply and install the insulation.

Approximate cost: $1600.00