Review from Angie’s List 8/31/16: Totally Satisfied with their service. The tech came by onsite on our appointment date. He explained to me how the project is to proceed. They will put 3 suction points to the ground and seal the whole crawlspace with radon retarder film, glue, and 1″x3″ wood. The tech explained that the motor can be mounted in the attic and not outside which I prefer to protect it from the elements. They will also install a higher rated motor with 5 years warranty including labor. They were higher in price compared to the other bids. I selected them because the tech gave me a better explanation onsite and assured me they will deliver an excellent and quality service and they did. The Radon reading came down from an average reading of 13 PCi/l to 0.6 PCi/l. Spec is below 3.9 PCi/l. Got a 5% discount as an AngiesList member.