We have had work done by your company not only for putting in a drainage system but also for anchoring a wall and anchoring a foundation. We were pleased with everything. The only problem was that after you dug down to bedrock to anchor the foundation of a room addition, shortly afterward we noticed a crack running up the block foundaton. You were notified about it and offered to come out to fix it free of charge, I believe, but my husband said that he could patch it himself. We've not had any other problems with any of your work. You are an excellent company that has cordial and knowledgeable employees.