Making St.Louis beautiful, One Job at a Time!! Shamrock Concrete is one of the busiest and most successful concrete company in the St. Louis area. Our reputation and growth can be accredited to excellent service, attention to detail, superior workmanship, and meeting and surpassing our customers demands. WE are a mid- sized family owned concrete company, our family has been in the concrete business for over 70+ years in the St. Louis area. Our commitment to hard work, quality, customer satisfaction, and a passion for what we do has made us St. Louis's First Choice and Best Choice for all your concrete needs!!