L4 Construction

At L4 Construction, we're proud Longmont, CO-based Marine Construction & Salvage Contractors with a passion for delivering top-notch services to our community. From the shores of Lake Erie to the waters of Longmont, we offer reliable expertise in dredging, underwater construction, breakwater construction, waterway improvement, and riprap installation - all with a personal touch that comes from treating our clients like neighbors and friends. With a strong foundation rooted in family values and a commitment to local excellence, we're dedicated to building lasting relationships and a reputation for quality work that keeps our community thriving.