About us

What We Do

Alter Ecosystems is NOT a “do it all” landscape company – and that’s just the way we like it.

We dedicate our time solely to building and maintaining beautiful ponds, Pondless Waterfalls and fountainscapes. This focus means we can pay attention to the details that matter.

We are a Certified Aquascape Contractor, and our water feature experts have years of experience creating stunning, distinctive ponds, waterfalls and fountains for Eastern Long Island.

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Who We Are

Ed Drohan started crafting backyard waterscapes more than 20 years ago. He's now one of the top water feature designers in the country, with work frequently featured on popular blogs like Greg The Pond Guy and Atlantis Water Gardens.

Ed and his team regularly work alongside some of the top koi vets in the area and are continuously learning and working to hone their craft.

Ed was born and raised right here in Sag Harbor. When he's not designing ponds and waterfalls, you can find him behind his drumset or spending time with his family.

Long Island Ponds, Fountains & Pondless Waterfalls

We offer pond installation and pond repair for Manorville, Riverhead, West Hampton, Quogue, East Quogue, Hampton Bays, Suffolk, Southampton, Watermill, Sag Harbor, Bridgehampton, Sagaponack, Springs, Amagansett, Montauk and more.
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Master Certified Aquascape Pond Contractor Serving Eastern Long Island, New York

Based in Sag Harbor, Serving The Hamptons & Surrounding Areas of Suffolk County, NY