Ecosystem Ponds
Living, low-maintenance ponds balanced by nature — crystal water, koi, and lush marginal plantings that get better every season.
We design the pond around your yard — never the other way around.
No two properties sit the same way. Every ecosystem pond we build is scoped on site and drawn for your grade, your sightlines, and the spot you'll actually sit and listen from. Nothing here comes off a shelf.
A pond is a closed ecosystem: skimmer, biological falls, circulation, stone, and plants working together so the water stays clear without chemicals. Get the balance right and it looks after itself. That balance is what we're designing when we walk your property.
What moves the number
- Footprint & depth
- Surface area, and whether you want true koi depth.
- Waterfall & stone
- How tall the falls run and how big the boulders we set are.
- Site access
- How far the machine travels, and what it has to work around.
- Finishing touches
- Lighting, planting, auto-fill, and the extras that make it yours.
The full ecosystem, not just a hole with a liner
The same components go into a $10,000 courtyard pond and a $70,000 koi sanctuary. Only the scale changes.
- Excavation, shelving, and grading
- Signature Series skimmer and BioFalls biological filter
- 45-mil fish-safe EPDM liner and geotextile underlayment
- Energy-efficient pump, sized to your waterfall
- Delivered boulders, cobble, and gravel, hand-set
- Aquatic and marginal planting
- Startup, bacteria dosing, and a walkthrough of the seasons
What a pond costs in a New England yard
Typical installed cost · ME · NH · MA
$10k–$18kGetting started
Courtyard & starter ponds
A compact, fully self-cleaning pond for a patio, courtyard, or the corner of a smaller yard. Small enough to tuck in, deep enough for goldfish and a few koi.
- 4×6 – 8×11 ft
- 2–3 ft waterfall
- Koi-ready
$18k–$35kMost of our builds
Family & signature ponds
The pond most people picture: room for a real koi community, a taller falls, a short feeder stream, and planting all the way around the edge.
- 10×13 – 11×16 ft
- 3–4 ft waterfall
- Feeder stream
$35k+Estate scale
Garden retreats & estate ponds
A destination rather than a feature — deep water for a serious koi collection, multiple falls, long streams, and the stonework and filtration we reserve for flagship builds.
- 15×20 ft and up
- Multi-tier falls
- Show-koi depth
Every figure includes excavation, liner and underlayment, filtration, pump, stone, plants, and startup — installed and running. Design and consultation are always free.
Other ways to bring water into your yard
Pondless Waterfalls
All the sound and movement of a waterfall with no open water — a striking, child-safe centerpiece that disappears underground.
Explore →Streams & Brooks
Meandering streams that wind through your landscape, tying gardens, patios, and gathering spaces together with gentle current.
Explore →Fountains & Water Features
Bubbling boulders, spillways, and architectural fountains scaled from intimate courtyards to grand entryways.
Explore →Tell us about your yard
Send a photo and a rough idea of the spot. We'll come out, walk it with you, and put a real number on it — no charge, no pressure.