In our attempt to make our homes better, insulation is key to getting the job done right.  And in this day and age of paying for estimates and having to put down non-refundable deposits, it’s rare to find a company like Northern Scotland Joinery. They make and install extremely high quality doors, windows and conservatories for their customers. They offer FREE quotes, and do not demand deposits! In addition, they have a ten year insurance backed guarantee on their products. They use Pilkington glass in their windows which provides up to 90% energy loss reduction! That is amazing to have a glass window that is that well insulated!