Who performs a blower door test?

Who performs a blower door test is typically a qualified home energy professional with training and calibrated equipment. Common professionals include BPI certified Building Analysts, RESNET certified HERS Raters, and home energy auditors who have completed blower door training. These professionals work for home energy audit companies, weatherization agencies, insulation contractors, and building performance companies. For low-income households, blower door tests are performed by technicians from local Community Action Agencies through the Weatherization Assistance Program at no cost to homeowner. For new construction code compliance required by International Energy Conservation Code, blower door tests must be performed by a certified third party, usually a HERS Rater or code inspector independent from builder. Some HVAC contractors and insulation contractors also offer blower door testing as part of their services. To find someone, you can search RESNET or BPI directories, contact your utility for approved contractors list, or call local weatherization agency. Qualifications to look for include BPI or RESNET certification, calibrated Minneapolis or Retrotec equipment, and experience performing combustion safety testing alongside blower door testing.