Wow!  Jonathan Roll with i-Foam insulation doesn't mess around.  He was so quick to respond to all of my inquiries and to provide a quote, much faster than all of his competition in the area.  I was also impressed with how fast he came over to drop off his open cell spray foam insulation sample for us to check out; again, he came right away compared to another local company that took weeks to get a sample to us.  I immediately liked his professionalism because I had a question about the quality of his product and he got me an answer right away by email.  Also, a very nice gentleman to work with who is very knowledgeable about all of the benefits of spray foam insulation over the traditional insulation.  All of his references had wonderful things to say about him and the spray foam insulation that he put into their homes.  Jonathan sprayed open-cell spray foam insulation around the entire exterior envelope of the home, including around each window and door on the exterior.  He also caulked around any tiny cracks to further help with energy efficiency of the insulation.  Here's the comparison of our energy bills:  our rental house (in same area of Alabama) for a family of seven people was a much smaller house, maybe 2,700 sq ft, single oven, and with a gas water heater had a hot weather electric bill of $500!   Our new spray foam insulation home in hot weather climate which is much larger at over 4,000 sq ft, no gas in home, double ovens, and 2 water heaters was $400!  If you do your math, this is a much lower electric bill comparing amount of energy used per square foot and with no gas used at all in the home and with more electric products being used as well!!!  The spay foam insulation is excellent in providing a much better energy efficient home.  Also, finally, NO toxic, cancer-causing fiberglass!  Yeah, a healthier living environment for our family!  We are very happy with the i-Foam company and our new healthy house.