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So pleased with the badly needed crawl space renewal/upgrade work Building Performance Pros performed for us that we decided to move forward with Attic clean-out, seal, upgrade and modernization with the latest in materials and processes. The team then conducted an intricate, detailed instrumented re-testing process to not only validate the success of the work, but is now being used as a model to form the basis as our “Whole house system” continues to be built out. (HVAC/ELEC) Icing on the cake is that this made not only an “Orders of magnitude” improvement on insulation capability (Data validated) from heat/cold (along with the attendant cost-savings), but we have had electricians and HVAC systems pros tell us how much easier, quicker, and efficient their work will now be to accomplish! Always courteous, professional and “Customer focused” the entire Building Performance Pros team vastly exceeded our expectations both technically and personally in all respects!”