A neighbour recommended Fog Free to me since they took care of 9 of her windows a couple of years ago. I had Phil from Fog Free come out last week to quote me on removing the inner condensation from 3 windows. He came yesterday to do the job. He was very professional, efficient, friendly etc. The kitchen window had been badly fogged up for about 3 years and 2 bedroom windows failed this past winter. Phil drilled 2 small holes in each window, got the moisture and condensation out, sealed up 1 hole and left a release valve in each window so the problem doesn't happen again. I can now see clearly out of all 3 windows so I am very pleased with the end results. I would recommend Phil to others looking to improve the condition of their windows, without having to replace the glass or windows. I also get a 20 year warranty as well.