Serving & Improving Chicagoland and Central Illinois

Frankfort Branch: 708.570.3260 | Decatur Branch: 309.807.9360

As part of the Illinois Energy Conservation Code, blower door testing is required to demonstrate a building infiltration rate of no more than 5 ACH50. And duct tightness testing is required where the air-handler or any portion of the ducts are located outside of the building thermal envelope or pressure boundary. Integrated system components such as mechanical ventilation, sealed combustion appliances and tight building techniques are quickly becoming demanded features in new homes throughout Illinois and the United States. These systems work together to control air leakage, provide adequate ventilation and ensure safe operation of combustion appliances. Testing the airtightness of your homes is a key component to ensuring that these new systems work properly.

A standard airtightness test of a house can usually be completed in 30 minutes or less. Once we arrive at a house, the Blower Door can typically be installed in about 5 - 10 minutes. Additional preparation and inspection of the house prior to beginning a test adds another 10 minutes. At this point, a test of the house to determine the overall leakage of the envelope can be conducted in less than 5 minutes.

Once the simple airtightness test has been completed, additional diagnostic procedures to find and prioritize the major leakage sites can add another 20 to 45 minutes depending on the size and complexity of the house, and the procedures used.

Contact us today to schedule your blower door test and make sure your home keeps cold air out this winter! Call the Frankfort Branch: 708.416.8063 or Decatur Branch: 309.807.3898

Is your home wasting precious heated and cooled air?

A blower door test will find out!

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  • Had to write you a note as to the positive results of the sealing and insulation job you did for us. For the first time in the 13 years we have lived here, our house is comfortable from top to bottom. Our second floor addition was always in the 80s on hot days and our air conditioners would run all day. When the temps reached the 90s we are at 73 degrees and the unit actually shuts off regularly. The best part for me is the basement is not freezing cold because our main unit actually turns off as the first floor stays at 73 degrees now too! Well, the best part should come when our electric bill arrives and we didn't pay to run our 2 air conditioners 24/7.

    I admit I was skeptical but I am so glad every time I walk in the house that I had to let you know how pleased we are with the work and the results. Your crew was great and took time to explain what they were doing. I have been bragging about how comfortable my home is now, Thanks again.

    Mike K.