Ecosystem Pond Builders in Lexington, Massachusetts
We design and build ecosystem ponds in Lexington with a skimmer, a biological waterfall filter, rock and gravel over the liner, plants, and fish. In Lexington the issue that shapes most designs is the tree canopy: mature oaks and maples drop a heavy load of leaves every fall, so placement and skimmer sizing get decided before anything else.
Learn more about our ecosystem ponds service, or see everything we do in Lexington.
2026 Regional CAC of the Year
Master Certified Aquascape Contractor
Combat Veteran Owned & Operated
18 Years Building in New England
What Goes Into an Ecosystem Pond
An ecosystem pond works like a small natural system. The skimmer catches leaves and surface debris and houses the pump. Water travels to a biological falls filter at the top of the waterfall, where bacteria break down waste, then spills back into the pond.
Under the stone sits underlayment and a 45 mil EPDM liner. Rock and gravel cover the liner and give beneficial bacteria a home. Plant shelves hold marginals and lilies that shade the water and compete with algae. The pond is 2 feet deep, recirculates, and never needs a hose left running. An auto-fill valve is optional.
Lexington Yards, Trees, and Ledge
Lexington sits in the inner suburbs northwest of Boston, where established yards come with big trees and digging can turn up glacial till or ledge. When we hit ledge, the design can bend around it, and sometimes the exposed rock becomes part of the waterfall.
Fall leaf load is the bigger day-to-day factor. A skimmer sized for the canopy and a pond set back from the drip line keep cleanup reasonable. Many homes here date from the 1950s to the 1980s, and some already have an old pond out back. We can build new or rebuild what is there, as we did on a formal pond renovation in nearby Newton.
Package Pricing and Add-Ons
Four package sizes cover most projects. Serenity Oasis, 6 by 8 feet, runs $15,000 to $20,000. Garden Jewel, 8 by 10 feet and our most popular, runs $25,000 to $29,000. Backyard Haven, 10 by 15 feet, runs $31,000 to $42,000. Luxury Retreat, 20 by 15 feet, runs $110,000 to $142,000.
Waterfalls run roughly $1,500 to $13,500 depending on the drop, streams roughly $2,650 to $18,000 by length, and lighting packages roughly $3,500 to $7,700. Expect roughly $25 to $75 per month in electricity during the season. Financing is available through Hearth.
How a Lexington Build Unfolds
A free phone call comes first, so we understand what you picture and how you use the yard. Shawn Cutroni then visits for a Discovery Meeting, walks the property, checks sun and slope, and designs the pond around the site. Final pricing follows that visit.
On build days the crew excavates, sets the skimmer and falls, installs underlayment and liner, places stone, and plants. Fall is a strong season to build here: the ground is still workable and plants settle in before spring.
Why Lexington homeowners call us
Lexington homeowners call us when they want a pond that looks like it has always been part of the yard and does not turn into a leaf trap every October. NEAL brings 18 years of New England builds and more than 200 water features, and Shawn designs each pond on site rather than from a catalog.
Full details, photos, and pricing tiers are on the Ecosystem Ponds service page, and our pricing calculator gives a ballpark before we visit.
Our closest featured build to Lexington
Middlesex County, MA
A Grand Entrance: Three Spheres of Serenity
View the projectMore of what we do in Lexington
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Guides for Lexington pond owners
Can a Formal Pond Be an Ecosystem Pond? Yes, and Here Is How
Can a formal pond be an ecosystem pond? Yes. See how hidden filtration, intake bays, and spillway bowls bring clear, living water to classic designs.
Why a Properly Built Pond Doesn’t Need a Hose Running Into It
One of the first questions people ask when they start thinking about a backyard pond is some version of the same thing: Don’t you have to keep filling it up? It’s a fair assumption, but if the pond is built right, the answer is no. Water evaporates. Waterfalls splash. Summers in Massachusetts get hot. […]
When to Start Feeding Pond Fish in Spring: The 55°F Rule
When to feed pond fish in spring: wait for water at a steady 55°F in New England, then use cold water food. Check oxygen first. Book a spring opening.
Frequently asked questions
Will a pond under big trees in Lexington become a maintenance problem?
Not if it is planned for. We place the skimmer on the downwind side so leaves collect in its basket instead of sinking, keep the pond off the heaviest drip line where possible, and recommend fall netting for yards with dense canopy. Those three choices handle most of the leaf load Lexington lots produce.
Can fish stay in the pond all winter?
Yes. Our standard 2 foot depth lets fish overwinter under the ice when circulation is set up properly. Fish slow down in cold water and should not be fed until the water holds steady at 55°F in spring. We cover winter care at handoff so you know what to expect the first year.
What does the Garden Jewel include?
The Garden Jewel is an 8 by 10 foot ecosystem pond with a skimmer, a biological falls filter, underlayment, 45 mil EPDM liner, rock and gravel, plants, and fish. It runs $25,000 to $29,000 and is the size most homeowners choose because it fits a typical backyard and still has room for a real waterfall.
How long does construction take?
Most residential ecosystem ponds take a few days to about a week on site, depending on size, access, and what the excavation finds. Larger builds with streams or multiple falls take longer. Shawn gives you a realistic schedule after the Discovery Meeting, once he has seen the ground and how equipment will get to the back of the yard.
Ready to talk about your Lexington project?
Call (774) 437-1160 to book a Discovery Meeting at your Lexington home and see what an ecosystem pond would look like in your yard.