My wife and I couldnt be anymore pleased with Greenshield. We live in a Queen Anne Victorian built in 1895. It is our dream home, however with zero insulation in the walls, it sure is cold and drafty. We did not want to insulate from the inside, for it would destroy a lot of the plaster cove we have throughout the house, so our only other option was to drill from the outside (through the original siding..scary!) and blow it all in. I had a few people come out, but we chose Joe because of his good reputation.Joe and his son Eric were on time, reliable, clean, efficient, and HONEST. Anytime I was watching, they were filling these walls to the top everytime. My wife and I were very nervous prior, because the last thing we wanted was our historic home butchered up, but these guys drilled, filled, and then put in wooden plugs, which my wife and I will be sanding and painting flush to the home in the summer (which, its hard to even notice them now).If anybody is looking for somebody with quality work, who is honest, clean, and wont throw a different price, go with Greenshield!