Best Seismic/Earthquake Retrofitting in Arlington TX

Had several companies submit quotes for a french drain due to water coming in house in Carrollton during heavy rains. Olshan was only company that brought measuring tools and Mark, their technician, was the only one who explained why I wanted a surface drain and not a french drain. The price was in the same range as the other companies and since they were the most professional, I chose them. The crew n supervisor who came did a great job despite having to dig thru very rocky soil. I was also impressed that the supervisor did not leave the job site - an unpleasant experience I've had in the past. They were very experienced with the installation and I'm very happy to have chosen them. Now let the monsoons begin!!