Niehaus Construction Inc. has been a Union contractor in the St. Louis area since 1902. In our over 100 years of business, we have developed and grown into one of the largest union construction companies in the St. Louis market. Our team here at Niehaus is dedicated to our customers and strives to make our work the best in our field. We keep pace with the latest technology and keep up with the newest products and trends. Being in business for over 100 years, Niehaus Construction understands how important skilled workers, professionalism, attention to details and the bottom line are to your construction project. We are a confident that using Niehaus Construction on your next construction project, will not only get you highly skilled people, but get your job done right and on time.