Our Company
Long Island and Fire Island

         William (Bill) Marquardt & Marquardt Marine Construction’s excellent crews continue to serve the Long Island and Fire Island communities as we have done for over 40 years.  Our men are provided with the very best equipment and tools available enabling them to provide top quality workmanship on each and every project.  This is proven by our satisfied and strong customer base.  Our experience in all phases of marine construction provides us with the know how to come up with creative solutions in all situations encountered.  All of our structures meet or exceed industry standards.

Marquardt Marine Construction is licensed and fully insured and will provide licenses and insurance certificates upon request.  Estimates are free and are provided promptly.  We look forward to working with you. References available.