Code Compliance Testing

Code compliance (duct & envelope) testing is available for builders, HVAC contractors, and as part of our ENERGY STAR certification. Building and energy codes require that a residential duct system, except those located entirely within a home’s thermal envelope, need to be tested for leakage.

ESG Code Compliance Duct TestDuct testing services are performed by certified professionals to test for leakage  to meet code and program requirements. This test requires all register boots to be taped or otherwise sealed during the test and each system is tested separately. When a home passes the test we post a duct test certificate near the air handler for city inspection. More info here: http://www.greenbuildingadvisor.com/blogs/dept/musings/duct-leakage-testing 


Code Compliance Whole House Blower DoorA blower door test determines the air infiltration rate of a building. A blower door is a powerful fan that mounts into the frame of an exterior door. The fan pulls air out of the house, lowering the air pressure inside. The higher outside air pressure then flows in through all unsealed cracks and openings.  ESG’s blower door testing services are performed by certified professionals to determine air leakage and help Builders meet code and program requirements for air infiltration and tightness. Some reasons to establish proper building tightness:

  • Reducing energy consumption due to air leakage

  • Avoiding moisture condensation problems

  • Avoiding uncomfortable drafts caused by cold air leaking in 

  • Determining how much mechanical ventilation might be needed to provide acceptable indoor air quality