Air Care Systems, Inc. performs a complete Whole-House Performance & Infiltrometer Test using state-of-the-art technology,( i.e. blower door, FLIR Infrared cameras capable of identifying heat loss and gains within a structure due to missing or poor insulation, water intrusion and has even identified active termite infestation). Some utility companies do provide a shorter rendition of this test, which only includes a check for duct leakage.