Since 1917 Harold Smith and Son has been providing quality construction materials and general engineering construction services to the Napa Valley. We own and operate a ready-mix concrete plant, allowing us to ensure quality in our concrete mixes. Our state of the art concrete mixing plant produces a wide variety of high-tech concrete formulas to meet any need. With our concrete produced on-site and a fleet of trucks to deliver the concrete to your site, we have the ability to fill any size order, large or small. We also offer a large selection of landscape supplies including sand, gravel, decorative rock, soils, barks, soil amendments and more. Our general engineering services grading, excavation, paving, sewer and septic, demolition, retaining walls and more. We?ll Help You Get It Done!