I called AQC and scheduled them to install a radon-reduction system in my home. The installer came to my house on the specified day and installed the system. The installation was very neatly and professionally done, and the installer was a nice, personable guy who explained the system to me, told me how to read the gauge and make sure it was working, and left me a couple of test kits so I could test the radon levels after the system had been working in my home for a few weeks. Thirteen days later I noticed that the system was no longer operating. I called AQC. They told me to unplug it for 24 hours and call them back if it didn't work when I plugged it back in. It did not, so I called again. They said that my fan was under warranty, but that I would have to pay a $149 service fee to have someone come out and put in a new one. I explained that I felt that this was unfair given that I had just paid nearly $800 for this system, and it had not even worked for two weeks! I asked to speak to a manager, but the person I was speaking to on the phone said one could not come to the phone at the moment. I asked for a manager to call me back. No manager returned my call, and no manager could come to the phone when I called back again a few days later. On 9/30/2011, after waiting a week to see whether a manager would call me to resolve this problem, I filed a complaint with the BBB of Detroit & Eastern Michigan. On or about 10/21/2011, after receiving my complaint from the BBB, AQC called me and scheduled my FREE service call, and another friendly installer came and replaced the fan in my system on 10/31/2011, and it has since been working properly. I would comment on the effectiveness of this system, but because of the long wait for complaint resolution with the BBB, this system STILL hasn't been operating for two uninterrupted weeks in my home, so I haven't been able to do a followup radon test yet. *sigh* However, if the radon test is not favorable, I will update this report further. This company does *not( stand behind their product, and they will *not* willingly fix their systems without a $149 fee, even if it's less than 30 days old! I think that is reprehensible. One should not have to file a complaint with the BBB to get service on a brand-new installation! I couldn't find this company on Angie's List before contracting their services because they're located in Lansing/Ann Arbor, but they do advertise and do work in the Portage/Kalamazoo area. I *should* have looked this company up elsewhere online before I hired them. There are many reviews around the internet telling of terrible service from this company. I would never hire them again, and I would never recommend them to a friend.