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.

Considering an ecological construction project? We are happy to walk your property and discuss options. 978-744-1515

   

NEWS AND IMPORTANT UPDATES

Dredging & Marine Construction

Dredging & Marine Construction

Hydraulic & Mechanical Dredging

Beneficial Use of Dredge Materials

Subtidal Infrastructure

Jetties, Piers, & Bulkheads

CDF Infrastructure
More Info

our central office has moved to:
401 Edgewater Place, Suite 680, Wakefield, MA 01880

Eco-contracting Service areas

Ecosystem Restoration
& Mitigation

Dam Removal
& River Restoration

Coastal
Stabilization

Infrastructure
& Resiliency

Dredging
& Marine Construction

Parks
& Open Spaces

Native Plant
Communities

Remediation

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 December 4Sunday January 4

DENNIS Story Walk – Winter Sleep
Old Fort Field,105 New Boston Rd, Dennis, MA 02638, USA

Bring the whole family to experience a seasonal piece of children’s literature as it was meant to be enjoyed — outdoors!

Enjoy a leisurely natural walk while you read our latest selection, Winter Sleep, a story about how creatures big and small prepare for winter.

📅 December 5 – January 5

📍 Old Fort Field – 105 New Boston Rd. Dennis

Cost: Free!

Friday December 19Friday December 26

Forest Bathing & Yoga Fusion: A Path to Presence – BARNSTABLE
Long Pasture Wildlife Sanctuary,345 Bone Hill Rd, Yarmouth Port, MA 02675, USA

Unwind your mind, refresh your energy, and reconnect with nature through a unique blend of guided yoga and forest bathing at the beautiful Long Pasture Wildlife Sanctuary! Feel grounded as you experience a restorative yoga flow and inspired by a mindful forest bathing walk through the sanctuary’s diverse ecosystems. Weather permitting, we’ll practice yoga outdoors on the Harbor Overlook lawn; otherwise, we’ll gather in the spacious Discovery Center.

This class is appropriate for all levels, from beginners to advanced practitioners, as several options/modifications will be given for both the yoga and the forest bathing walk.

About Erica Jansson: With over 40 years of yoga practice and instruction, Erica Jansson weaves together mindful movement, breath awareness, and alignment-focused guidance to create a nourishing and accessible experience for all. A retired science teacher and lifelong resident of the area surrounding Long Pasture, Erica integrates her deep environmental knowledge with the wisdom of yoga philosophy to help students build strength, resilience, and inner calm. She brings a grounded, compassionate presence and a deep love for this land into every session.

Register at http://massaudubon.org/longpastureprograms

Saturday December 20

Craigville Beach Clean-up – CENTERVILLE
Craigville Beach,966 Craigville Beach Rd, Centerville, MA 02632, USA

Note the new time which is 11 AM and that this clean-up will be rain or shine!

Join BLT, the Town of Barnstable Natural Resources https://town.barnstable.ma.us/departments/naturalresources/ team, and other community partners for a break from holiday happenings to do a beach clean-up at Craigville Beach in Centerville. Gloves and trash bags will be provided as well as a thank you gift. Please dress accordingly for the weather and join the fun! Pre-registration is suggested to make sure there are enough supplies. Questions? Call Barnstable Natural Resources: 508-790-6272

Register HERE https://blt.org/events/craigville-beach-clean-up .

Sunday December 21

Solstice Sunrise Mindful Nature Walk — HARWICH

Please join Kripalu Mindful Outdoor Guide Andrea Higgins on December 21st to welcome winter during this Solstice Sunrise Mindful Nature Walk. Celebrate the start of the season while strolling the serene trails of Pleasant Bay Woodlands to find peace and admire the beauty found in the forest and meadow habitats. Release stress, settle your awareness on nature’s soothing atmosphere, and gain inspiration from the living earth.

Photo courtesy of Gerry Beetham.

Cost: $18 per person. Please click here https://secure.lglforms.com/form_engine/s/vmW5DyffuwBnecN8wlJWbA to reserve.

Chatham – Winter Solstice Walk December 21st
Monomoy National Wildlife Refuge,30 Wikis Way, Chatham, MA 02633, USA

Dec 21, 2025, 9:30 AM – 11:30 AM
Monomoy National Wildlife Refuge, 30 Wikis Way, Chatham, MA 02633, USA
Join Fi Lowry in welcoming the Solstice with a morning bird walk on Morris Island. We will go in search of sea ducks, loons, grebes, and gulls, and keep an eye out for a Northern Harrier hunting over the dunes. Registration is free. https://www.eventbrite.com/e/winter-solstice-walk-morris-island-with-fi-lowry-tickets-1968690219442?aff=oddtdtcreator

Winter Solstice Hike – FALMOUTH

Welcome winter and the return of longer days with this 3-mile hike through the fields of the Crane Wildlife Management Area on the shortest day of the year. The dirt paths are wide and have a few gradual hills with some uneven footing, so flashlights and walking poles may come in handy. Sunset is at 4:15 PM. Walk is organized by The 300 Committee Land Trust’s public outreach volunteers. Walk leader: Alex Lancaster, 774 – 392 – 3114

Parking: At the end of the dirt road off Route 151 in Falmouth between the Allieta Ball Field and Hamilton Tree & Landscape.

Tuesday December 23

Newbies in Nature — HARWICH

Please join naturalist and Kripalu Mindful Outdoor Guide Andrea Higgins for HCT’s weekly Newbies in Nature program. Carry your baby in a front sling or backpack and enjoy the company of other young families while walking the trails of local conservation lands. Find newfound joy while connecting with your baby and seeing the wonder in their eyes as they discover the wild world around them.

Andrea will offer gentle prompts to engage your senses and encourage a deeper connection to nature and your child to create memories that will last a lifetime.

Trails are not suitable for strollers so please carry your baby in a front sling or backpack.

Space is limited so reservation is required. Please click here https://secure.lglforms.com/form_engine/s/3Zk4HarB8-B-9zn8knDo-Q to sign up. https://massculturalcouncil.org/

Thanks to generous support from the Massachusetts Cultural Council and the community, these programs are free.

Photo by Halley Steinmetz

Preschool Explorer Adventure — HARWICH

December is a wonderful time to discover the great outdoors and admire the shifting seasons! If you have a youngster aged 2-5 ready for adventure, we hope you’ll join Naturalist Ms. Andrea and the Preschool Explorers.

Get outside, get creative, and get moving while hiking a different Preserve each week. Breathe in the fresh air, see signs of wildlife, and learn about the land we live on.

Cost: Free! Space is limited so advance reservation is required. To reserve, please click here https://secure.lglforms.com/form_engine/s/ZQBQZBiiwFaoWg__PdaGug .

A special thanks to Sylvan Gardens for welcoming a selection of these adventures to take place at their lovely conservation area. The Rolf E. Sylvan Gardens Conservation Area is owned by the Town of Chatham and maintained and preserved through volunteer efforts with the Friends of Sylvan Gardens https://www.sylvangardens.org/ . https://massculturalcouncil.org/ https://massculturalcouncil.org/

Thanks to generous support from the Massachusetts Cultural Council and the community, these programs are free.

Photos by Halley Steinmetz

Preschool Explorer Adventure — HARWICH

December is a wonderful time to discover the great outdoors and admire the shifting seasons! If you have a youngster aged 2-5 ready for adventure, we hope you’ll join Naturalist Ms. Andrea and the Preschool Explorers.

Get outside, get creative, and get moving while hiking a different Preserve each week. Breathe in the fresh air, see signs of wildlife, and learn about the land we live on.

Cost: Free! Space is limited so advance reservation is required. To reserve, please click here https://secure.lglforms.com/form_engine/s/ZQBQZBiiwFaoWg__PdaGug .

A special thanks to Sylvan Gardens for welcoming a selection of these adventures to take place at their lovely conservation area. The Rolf E. Sylvan Gardens Conservation Area is owned by the Town of Chatham and maintained and preserved through volunteer efforts with the Friends of Sylvan Gardens https://www.sylvangardens.org/ . https://massculturalcouncil.org/ https://massculturalcouncil.org/

Thanks to generous support from the Massachusetts Cultural Council and the community, these programs are free.

Photos by Halley Steinmetz

Newbies in Nature — HARWICH

Please join naturalist and Kripalu Mindful Outdoor Guide Andrea Higgins for HCT’s weekly Newbies in Nature program. Carry your baby in a front sling or backpack and enjoy the company of other young families while walking the trails of local conservation lands. Find newfound joy while connecting with your baby and seeing the wonder in their eyes as they discover the wild world around them.

Andrea will offer gentle prompts to engage your senses and encourage a deeper connection to nature and your child to create memories that will last a lifetime.

Trails are not suitable for strollers so please carry your baby in a front sling or backpack.

Space is limited so reservation is required. Please click here https://secure.lglforms.com/form_engine/s/3Zk4HarB8-B-9zn8knDo-Q to sign up. https://massculturalcouncil.org/

Thanks to generous support from the Massachusetts Cultural Council and the community, these programs are free.

Photo by Halley Steinmetz

Wednesday December 24

Preschool Explorer Adventure — HARWICH

December is a wonderful time to discover the great outdoors and admire the shifting seasons! If you have a youngster aged 2-5 ready for adventure, we hope you’ll join Naturalist Ms. Andrea and the Preschool Explorers.

Get outside, get creative, and get moving while hiking a different Preserve each week. Breathe in the fresh air, see signs of wildlife, and learn about the land we live on.

Cost: Free! Space is limited so advance reservation is required. To reserve, please click here https://secure.lglforms.com/form_engine/s/ZQBQZBiiwFaoWg__PdaGug .

A special thanks to Sylvan Gardens for welcoming a selection of these adventures to take place at their lovely conservation area. The Rolf E. Sylvan Gardens Conservation Area is owned by the Town of Chatham and maintained and preserved through volunteer efforts with the Friends of Sylvan Gardens https://www.sylvangardens.org/ . https://massculturalcouncil.org/ https://massculturalcouncil.org/

Thanks to generous support from the Massachusetts Cultural Council and the community, these programs are free.

Photos by Halley Steinmetz

Friday December 26Friday January 2

Forest Bathing & Yoga Fusion: A Path to Presence – BARNSTABLE
Long Pasture Wildlife Sanctuary,345 Bone Hill Rd, Yarmouth Port, MA 02675, USA

Unwind your mind, refresh your energy, and reconnect with nature through a unique blend of guided yoga and forest bathing at the beautiful Long Pasture Wildlife Sanctuary! Feel grounded as you experience a restorative yoga flow and inspired by a mindful forest bathing walk through the sanctuary’s diverse ecosystems. Weather permitting, we’ll practice yoga outdoors on the Harbor Overlook lawn; otherwise, we’ll gather in the spacious Discovery Center.

This class is appropriate for all levels, from beginners to advanced practitioners, as several options/modifications will be given for both the yoga and the forest bathing walk.

About Erica Jansson: With over 40 years of yoga practice and instruction, Erica Jansson weaves together mindful movement, breath awareness, and alignment-focused guidance to create a nourishing and accessible experience for all. A retired science teacher and lifelong resident of the area surrounding Long Pasture, Erica integrates her deep environmental knowledge with the wisdom of yoga philosophy to help students build strength, resilience, and inner calm. She brings a grounded, compassionate presence and a deep love for this land into every session.

Register at http://massaudubon.org/longpastureprograms

Testimonials

LinkedIn Social Feed