I have a 3-br ranch with two of the rooms over our garage. These rooms have always been terribly cold in the winter, and after having our first child and making one of those rooms the nursery, my wife and I felt the need to get the house insulated. We first got a quote from a company that advertises a great amount about pumping your home's walls with injection foam, but the price was higher than we were comfortable with, and we decided to keep looking. I called DES, and Chris came out and proposed a personalized solution to insulate with cellulose above the garage ceiling/below the two cold rooms, as well as add cellulose to our attic to get it up to R49. The price wasn't low (though significantly lower than the other company's foam solution), but it was fair, and we decided to go with them. During installation, they ran into a problem where cellulose was finding its way into our return ducts in our basement. Turns out a previous owner of our house retro-fitted a boiler system and cut some corners when installing the furnace and ductwork, and there was zero ducting above the garage leading up to the bedrooms...messy situation! DES came up with a solution which required a lot of extra work on their part, blocking off and re-routing the returns in those bedrooms which allowed them to fully insulate the garage. The best part is they stuck to their original quote despite the extra work, saying that I purchased a solution from them, not just X amount of insulation. It hasn't even been two days and we've already noticed a difference comfort-wise in those rooms. We're keeping our house 2 degrees warmer and the furnace appears to running less than it did before (we'll see how the gas/electric bills are affected but I'd expect them to go down substantially). If looking at insulating your home, I would definitely recommend giving these guys an opportunity to quote a personalized solution for your home.