Kent obviously knows what he is doing. Based on what we wanted to do with mounting our TV, he made recommendations on where it should be placed and how it should be mounted, always deferring to us for a final decision. We decided to hide the cords in the wall, so he had to cut through several layers of different building materials. He was more than prepared, with some serious-looking tools he needed already onsite with him, and knowing exactly what needed to be done. He and Frank were quick and efficient and cleaned the entire area clear of discarded materials when done. They'd drilled through drywall and particle board, but you'd never have known it from looking at the floor. It looked like the TV had simply grown on the wall, and they were never even there. My boyfriend and I were absolutely thrilled with the results. Both Kent and Frank were really nice and pleasant to work with. Kent even took the time to show us how to add cords through the wall later if we needed to, and how to check the TV mounting for proper security after earthquakes, which I thought was really going above and beyond, and very thoughtful. If you're installing a TV, you could not do better than hiring Diaz Bros. I will be recommending them to all my friends. You should give them a call too!