Aspen Environmental Services installed a complete system in my new home to mitigate the radon. They worked steadily and confidently. The job was completed in two days and has remained efficient for over four years.
I believe my house provided an interesting challenge for Dennis, as part of the crawl space is only 5 inches high. There was a sound issue in the first 2 weeks and when I called him about it, he scheduled an appointment to return (even though I live 3 hours from where he is based in Colorado Springs) in a timely fashion. The sound issue turned out to be a loose, hardened piece of foam that was easily removed. I never hear the fan, yet I know my house is safe from radon.
Malina F., Crestone