Avoid "Greens Landscaping, Design and Construction" in Pleasanton. David, the owner, came out to give us an estimate for a retaining wall and upon leaving, drove over two solar hot water heating panels on my property. He seemed willing to take responsibility and I obtained an estimate of their value ($300). Thereafter he ignored me, or tried to blame me for having "junk" scattered about my yard. Then he said he would pay, minus a "time charge" of $250 for his free estimate, which he never provided. He then agreed to pay me $50, six month ago. Still waiting.. Very unprofessional behavior.