HI Alex,What a big difference Insulmax® H/B has made to our home. We had a huge frost this morning and our house is lovely and warm! really happy with job and extremely happy with Callum and Rangi, they are polite, hardworking and take great care when working, awesome on clean up etc. Very nice young men and represent your company in an outstanding manner. I know it was a challenging project for them and appreciate their efforts. Will absolutely recommend your product and amazing service.