I bought a house with a finished basement done by the previous owners handy brother in law.wont get into all the other things i found he had done.The basement was finished and looks ok but the only insulation there is in the walls is the little amount the builders put in at construction time. so approx 1 1/2" of insulation 4' down from ceiling with a vapor barrier. I live in central Ontario it does get cold here and so does the basement.was wondering what would be the best thing to do to get more insulation,i was thinking of blowing insulation in by making small holes then i would just have to patch the holes or should i rip it all down and start over.cost is a factor.thanks