The guys “brothers” arrived at my house and I was at lunch. Gave them my garage code over my Ring doorbell system. By the time I got there they already had the hole drilled in the slab in the laundry room. With in two hours they were finished. I had installed a Air Wave system week before and radon was high even upstairs in my bedroom. Well already today the sensors are reading 1.5! These guys and company were awesome. I had my next door neighbor stop by and check out the job they did. I highly recommend this company and as soon as I’m out of Facebook jail for a comment I made about something I’ll post photos and comments. Great Job Guys. Great price as well.