Hill Construction Co. is an expert in  design and installation of paving stones, artificial lawns, outdoor living spaces! Free Design Consultation.  With 8 local manufacturers of paving stones and many color blends/patterns to choose from, Hill Construction Co has perfected a system that will help you quickly find the perfect stone to suit your budget.  Hill Construction Co has 3 local offices to serve you: Menlo Park, San Rafael, Seaside.  Hill Construction Co is your best value interlocking paving stone contractor with Quick, Efficient, Quality Installations since 1979.