Building a better and more sustainable tomorrow.

SumCo Eco-Contracting is devoted to the specialized field of ecological construction. We have been privileged to serve as the construction partner on hundreds of Eco improvement projects across the northeastern United States, including many of the region’s most notable.
We offer additional site, civil and environmental construction experience supporting redevelopment, remediation, coastal, and linear infrastructure projects that often include challenging Eco improvement elements. We invite you to view our work.

Call us today to talk about your project.
We're here to help. 978-744-1515



Dredging & Marine Construction

Dredging & Marine Construction

Hydraulic & Mechanical Dredging

Beneficial Use of Dredge Materials

Subtidal Infrastructure

Jetties, Piers, & Bulkheads

CDF Infrastructure
More Info

Eco-contracting Service areas

Ecosystem Restoration
& Mitigation

Dam Removal
& River Restoration


& Resiliency

& Marine Construction

& Open Spaces

Native Plant


Restoration Spotlight
– Before and After

Columbia Lake Dam – Before and After

After notching and lowering the lake, the dam was removed and SumCo restored the newly exposed riparian corridor on a NJ Wildlife Management Area, opening up a 10-mile river stretch. This dam removal restored connection to the third largest New Jersey tributary to the Delaware.

Upcoming Industry Events

Thursday May 30

EBC 4th Annual U.S. EPA and New England State Water and Wastewater Leadership Summit
Virtual Event, United States
Climate Adaptation and Resilience in Transportation

The USDOT Climate Change Center is hosting a 2024 webinar series on climate change and transportation topics, ranging from greenhouse gas reduction strategies to climate resilience activities to research and technology advancements.

Sunday June 2Wednesday June 5

Save the Date: CES and CTSSR Annual Meeting
the founders inn and spa, 5641 Indian River Rd, Virginia Beach, VA, 23464, United States

Please join us this Summer in Virginia Beach for the joint meeting of AASHTO’s Committee on Environment and Sustainability and Committee on Transportation System Security and Resilience, from June 3rd to June 6th.
You can now register for the event here: Registration Website

Tuesday June 4

EBC New Hampshire Chapter Program Planning Meeting
Normandeau Associates, Inc., 25 Nashua Road, Bedford, 03110, United States

Wednesday June 5

EBC Rhode Island Chapter Program Planning Meeting
Rhode Island Department of Environmental Management – RIDEM, 235 Promenade Street, Providence, RI, 02903, United States

Thursday June 6

Building Social Capital for Climate Resilient Communities
Foley Hoag LLP, 155 Seaport Boulevard, Boston, 02210, United States


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