We've been using Indoor Air Quality Solutions on and off for a few years now. At my company we provide some of the same services that they do; we have mold assessors, certified industrial hygienists in our firm, etc, but there are times based on workload and other things of that nature that we'll use them to do work as well. They're very good, very good at what they do, and very professional. I enjoy working with John and Lydia. They have an A in my book. I would recommend them and I'll keep using them as well.