NSPJ is certified in HERS index score testing. We use a two-part solution to help our clients achieve optimal energy efficiency and a lower HERS score. The first environmental efficiency test is a visual inspection conducted during the rough stage of construction, after insulation is in place and prior to any drywall installation. This allows us to ensure that the proper insulation rating (R factor) has been installed in your ceilings and walls. The second stage of environmental efficiency testing is conducted at project completion. During this testing, we use specialized tools to determine the amount of air leakage in the building and ductwork. Our software produces the HERS score after testing is complete. The score allows us to make precise recommendations to improve energy efficiency.