To begin with, the owner of this business gave incorrect information about where the system would be installed. When the workers arrived, the installation had to be re-evaluated and the price had to be increased accordingly. Then, the workers were not able to complete the job in its entirety. Several calls were made to contact the business owner, who never returned calls but charged the credit card anyway. Finally, owner picked up the phone by accident since I called from an unidentified number, the owner was rude on the phone. The workers returned after several days, and completed the job. Additionally, they were supposed to re-check the radon levels after the installation was complete, and that has been 2 months ago, there has been no word from them. Extremely unreliable business.