FoamMyWalls.com installs injectable, non-expanding foam insulation into the exterior walls of existing homes & buildings. Installation is non-intrusive since the foam is injected from the exterior thru small holes drilled between the brick or thru the siding. Plus, it's very affordable since costly repairs to interior drywall are not required. Our foam provides up to 50% utility savings, up to 80% sound reduction and is non-toxic. It performs similarly to spray foam, which is used so much in new construction today, but due to its non-expanding properties, it's the perfect solution for the energy needs of existing homes & buildings! Read reviews by former customers at www.GuildQuality.com/FoamMyWalls.