Blower Door

   A blower door is a machine used to test how airtight a home is constructed.  Blower doors are used  to assess the construction quality of the building envelope, locate air leakage pathways, assess how much ventilation is supplied by the air leakage, assess the energy losses resulting from that air leakage, determine if the building meets compliance with building performance standards.

Blower doors consist of a frame and flexible panel that fit in a doorway, a variable-speed fan, a pressure gauge to measure the pressure differences inside and outside the home, and an airflow manometer and hoses for measuring airflow.  The fan is calibrated to depressurize the home; the calibrated blower door's data allow the auditor to quantify the amount of air leakage. 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.  This allows us to find air leaks and drafts by hand, with a smoke pencil and with infrared cameras. 

After a blower door test you have an accurate measurement of your home’s air tightness.  We also perform a blower door test after any work is completed to give an accurate and quantifiable result of any work completed.

Accurate Reports

Generated reports before and after to quanitify results.

Infrared Technology

Infrared Cameras can detect missing or inadaquate insulation.

Peace of Mind

Know that your home has reached maximum energy efficientcy.

TRC is proudly serving customers in these areas

Angier Blower Door Test

Cary Blower Door Test

Clayton Blower Door Test

Durham Blower Door Test

Garner Blower Door Test

Knightdale Blower Door Test

Pittsboro Blower Door Test

Rolesville Blower Door Test

Wake Forest Blower Door Test

Youngsville Blower Door Test

Blower Door Test

Chapel Hill Blower Door Test

Creedmoor Blower Door Test

Fuquay Varina Blower Door Test

Holly Springs Blower Door Test

Morrisville Blower Door Test

Raleigh Blower Door Test

Sanford Blower Door Test

Wendell Blower Door Test

Zebulon Blower Door Test


Chatham County Blower Door

Durham County Blower Door

Lee County Blower Door

Johnston County Blower Door

Orange County Blower Door

Wake County Blower Door



Contact us directly at (919) 924-7600





Weatherize Today


Did You Know?

Saving energy not only reduces your power bill It also reduces your carbon footprint.