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Blower Door Test 

Have you noticed any of the following in your home?

  • Drafty rooms
  • Excessive dust
  • Outside noises are heard in your home
  • High utility bills


Imagine having a window in your house that never closes. By conducting the blower door test, we measure your home’s air leaks and determine the size of this “window”. We calculate the Building Airflow Standard for the size of your home and occupancy rate, and compare that to what the actual blower door results tell us in Cubic Feet per Minute (CFM).  We can tell you how much energy you are wasting due to excess air-flow, and what our limit is for making your home air tight while maintaining healthy air.

How do we do it?

Blower Door test is a professional tool to help determine the air infiltration rate of a building. 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. Once we get the output we can design adjustments for your home and you can save more money on energy bills!

Blower door tests are for new construction and/or major renovations - It is required for Occupancy Permits.

Kalamazoo and Portage: $400

Otsego, Plainwell, Vicksburg, and Schoolcraft: $425

Battle Creek, Marshall, Allegan, and Three Rivers: $450

Our Clients Love Us

  • ...great job! highly recommend BWB...
    Mary Farrington, Texas Township, MI

    “I recently had the opportunity of engaging Better World Builders in a home energy evaluation and subsequently hired them to complete the recommended and necessary repairs to make my home more energy efficient.  I really liked several things about doing business with Mark Lee:

  • ...neat and fast...
    Teri Koretsky, Kalamazoo, MI

    “I had noticed several cold/hot spots.  The assessment helped to explain why and how to correct it.  The workers were neat, careful and completed the work in a timely fashion.”

  • ...the best job, with the best materials...
    Rhonda Egidio, Kalamazoo, MI

    “I have great confidence in Better World Builders, that they are always committed to doing the best job with the best materials.  I believe the work they do on my home is what they would do on their own.”