They added insulation, caulking, attic cap, etc. to my house. I was very pleased with the service and knowledge that Intelligent Energy Solutions Green exhibited in evaluating and improving the energy efficiency of my home. Their testing equipment and process was impressive to watch as they pinpointed specific areas of improvement. They also exhibited a remarkable degree of knowledge of the house and its individual components. They were on time, considerate, and willing to work with me on smaller projects.