I'm pleased to share a word of appreciation for the work A-A Exteriors did for our condo association. They conducted a blower-door test for our six-building, sixty units. This was a complex project. It required coordinating a large number of people and adapting to a variety of problems in each building. They were very easy to work with. I do not hesitate recommending them. My experience was that if they said they would do it, they would do it.