We decided to use Insulmax® to retro fit insulation into our 70's brick unit given the great things we had heard about them from other homeowners who had already used their services, we were confident that the product had a proven track record. Install costs were also very competitive and the install itself only took a day. We noticed the change inside our home immediately, noting that although it was the end of summer our interiors were cooler. As winter approached and temperatures dropped our interiors were notably warmer. Consequently, we have not needed to use our aircon or heat pump as much as we had been prior to install and this reflected in a lower electricity bill. With our gratitude we highly recommend the Insulmax® Team and their product and services to anyone seeking an honest and reliable company for retro fitting exterior home insulation.