I contacted several companies to get quotes on insulating my garage ceiling (with bathroom above) and the inside wall of the cold cellar. Insta-Insulation offered a good price, and they seemed to know what they were talking about. We booked the appointment, and they were to arrive between 1 and 3 PM. They showed up after 6 PM, and finished up by around 8 PM. That's not too serious, except that because we have to get out of the house for 24 hours (to allow the insulation to cure, and the gases to dissipate), it kind of messed up our evening. Once complete, I found that our bathroom floor was still quite cold... a bit frustrating, given the cost and effort to do all this. I rented a thermal imaging camera for $90 and checked out the quality of the coverage, and found many small holes that defeated the goal of sealing the air gap between the floor above and the insulation, as well as a few thin areas. I would have called them back, but due to time constraints to get the rest of the job done, I just bought a few cans of spray foam insulation and filled the gaps. Using the camera, I confirmed that everything was good. The floor is a bit better, but still cool. (No fault of Insta-Insulation, I'm sure). The installer made a comment that he was having problems with his sprayer, and it finally started working well as they finished up the job... that might explain the spotty coverage in some areas. So, while I like the foam insulation, the job was just 'ok'. I might use them again, but I'd make sure to explain that I really want a good job this time!