Watch a full duct sealing from the inside using Aeroseal. This is a complete duct sealing start to finish. Brendin with One Hour Heating and Air Conditioning in Olathe, KS shows how he performs a duct sealing using Aeroseal. Before duct sealing we do a test to see exactly how much air is leaking throughout the house. We'll typically see between 30-45% air duct leakage before we begin. When the duct sealing is complete we often get the air duct leakage to under 3%. In this particular house we hit 1.5%. This will make a huge difference in energy efficiency, getting more air upstairs, and keeping consistent temperatures throughout the house.

We often do a duct cleaning before duct sealing because we find that the duct sealant sticks better to clean ductwork. You can seal your ductwork without cleaning, but we have found that we get better results when we do duct cleaning first.
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