Onset Marine Construction Corp. proudly provides commercial and residential marine construction services to the Gulf Coast region. Licensed and insured, the corporation's base is located in St. Charles Parish, Louisiana. Onset offers marine construction solutions from both water and land access. Every aspect of construction is engineered with factors that come with life on our unique waterways in mind, such as hurricane endurance, continuous water level variations, and material preservation solutions that ensure the quality and longevity of every project.