We are an authorized Tripolymer Injection Foam dealer. Tripolymer is the most cost effective product on the market today for insulating the walls in existing homes. We can achieve an R-20 or higher in old walls resulting in a warmer, quieter, and more comfortable home with lower utility bills. Tripolymer is an extremely effective product that can be installed in existing wall cavities through holes as small as 1". Tripolymer has a very high R-rating, substantially reduces air infiltration, and has high soundproofing qualities. It is non-toxic, won't burn, melt, or give off smoke. Tripolymer does not contain or emit CFC's, is not a urea - formaldehyde foam, and does not off gas during or after installation. Check out: www.comfortsureinsulation.com