My wife and I have some mixed feelings about the costs involved with having our home insulated by One Alliance. We live in Parkdale along College off of Landsdowne and recently had an inspector, review the property, as it is for sale and on the market. As it turns out, the lowest possible insulation material in terms of rating was used, while we paid top dollar. This isn't fair. We trusted them with our home and paid way to much for service and materials. It pays to shop around.