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The Leaders in Residential and Heavy Civil Marine Construction on Lake Erie

Serving the Coastal Shoreline from Port Buffalo to Port Monroe

Our Services

Demex Construction Services, LLC specializes in the core elements of marine construction, with a focus on erosion prevention construction and maintenance.  Marine Construction is the heart of Demex Construction Services, LLC and was the company's founding purpose. We have grown this small, family-owned business into one that is known for its craftsmanship, safety efforts and innovation. With our highly trained crews, and meticulously maintained fleet, Demex is ready for your project. 


Revetments & Seawalls

Cribs, Piers, & Docks

From a few feet to miles of armor stone,  Revetments are a great option to drastically slow the effects of erosion due to wave action. 

From ballast stone filled cribs, to timber docks leading to the water, there are many options to enhance your water access on your property. 


Pile Driving



Sometimes there is just no substitute for the power of steel. Sheet piling installations are a tall order, but will secure the shores of your property. 

When those marinas and boat launches get a little too shallow, it's time to dredge. We're ready to ensure you get back to a safe water depth. 


Demex provides exceptional marine construction services along Ohio’s Lake Erie Shoreline and tributaries, for both residential and civil projects. Our experience and attention to detail has made us a standout in our industry.  We remain competitive by always aiming to save you valuable time and resources. Demex strives to use locally sourced materials, and American made steel on every project, keeping our customers and our company connected to our local economy. 

A Look at who we have done work for...

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