I thought Indoor Air Quality Solutions, IAQS did a very good job. They were very clear with what they were doing and what they were looking for. The techs were clean, courteous, and forthcoming about what they saw and what they didn't see. They were clear in telling and showing us how things were. One thing I really appreciated was the fact that they didn't try to sell us anything while they were here, which was a big plus. It was a great experience, and I would absolutely use their services again.