StoneTech’s professionals are experts in concrete overlays. This service is largest part of their business with almost 90-percent of it in the flagstone pattern. StoneTech is best concrete contractor in Atascadero, CA and serves all of San Luis Obispo County. This concrete process is an acrylic modified cement overlay. It’s troweled on in layers to achieve the customer’s desired look. You can choose from a variety of colors and designs. All designs can be applied to interior floors or exterior areas.