These 4 guys did a phenomenal job digging out the perimeter of the patio (by hand no less) 3 foot deep by 1 foot wide for the screening to seal out the patio from chipmunks. They had to contend with a ton of junk concrete large and small to get to the depth they needed to complete the task. after all was said and done they put back they existing dirt and graded it as requested, then moved the large chunks of rock in the back of the yard for me. Overall a fantastic job by all. Thanks.