Residential DET Test

A Duct and Envelope Tightness (DET) Test is a specialized form of duct leakage testing that measures how much air escapes from your home’s duct system and building envelope. Using calibrated equipment like blower doors and duct testers, professionals pressurize the system to detect leaks and measure airflow loss. This process helps determine how much conditioned air is being wasted and whether your home meets energy efficiency standards. In simple terms, the tighter your ducts and home structure are, the less energy you lose, leading to better comfort and lower utility bills.