Hillsborough County, New Hampshire

    Natural Swimming Pool Installers in Nashua, New Hampshire

    New England Aquatic Landscaping builds natural swimming pools in Nashua that clean themselves with plants and gravel rather than chlorine. You get a swim pond with stone edges and clear water that looks at home in a New Hampshire yard. Along the Merrimack River, sandy outwash soils make for easier digging, but they also mean the basin has to be shaped and supported with care.

    Learn more about our natural swimming ponds service, or see everything we do in Nashua.

    2026 Regional CAC of the Year

    Master Certified Aquascape Contractor

    Combat Veteran Owned & Operated

    18 Years Building in New England

    The Parts of a Natural Pool

    Every natural swimming pool we build has an open swim zone and a separate planted regeneration zone. The regeneration zone is a shallow wetland of gravel and aquatic plants. Water is pumped through it continuously, and the roots and bacteria in the gravel take up the nutrients that would feed algae.

    A skimmer keeps the surface clear of pollen and leaves, and the circulation keeps water from going stagnant. Under the surface, a barrier separates swimmers from the plant beds. The whole system runs without chlorine, salt, or shock treatments, and fish are optional.

    Sand, Frost, and City Lots

    Much of Nashua sits on sandy glacial outwash laid down by the Merrimack River. Sand digs easily, but the walls of a deep swim zone want to slump, so the excavation is shaped with gentle slopes and benches that the stone and liner can rest on. Pockets of ledge still turn up in other parts of town.

    Winters here are colder and longer than in Massachusetts, with deeper frost, so equipment placement matters. Nashua also has a wide range of lot sizes, and a smaller city yard may only fit a recreational pond. Our crew comes up from Cherry Valley and books New Hampshire builds in blocks.

    Swim Pond Price Ranges

    For a children's or small recreational pond around 18 by 25 feet and 3 feet deep, plan on roughly $120,000 to $165,000. For an average swimming pond around 25 by 30 feet and 4 feet deep, roughly $165,000 to $275,000. For a large pond around 30 by 40 feet and 5 feet deep, upwards of $275,000.

    In sandy soil, the excavation is often simpler, but extra shaping and backfill may be needed to stabilize the walls. Equipment access in tighter neighborhoods, decking, beach entries, and lighting all affect the final number, which comes after the on-site visit. Financing through Hearth runs 2 to 12 years.

    Getting From Idea to Swim Pond

    Call us first for a free phone consultation. If your goals and lot sound like a fit, Shawn schedules a Discovery Meeting in Nashua, where he checks sun exposure, soil, drainage, and how a machine would reach the build site.

    Shawn then designs around what he finds, and we help you sort out what the city asks for in permits. The build follows a set sequence: dig, underlayment and liner, separation wall, gravel and stone, plumbing, then planting. The first season is when the wetland plants root in and the water reaches its full clarity.

    Why Nashua homeowners call us

    Nashua homeowners call us because they want to swim at home without hauling chlorine buckets every week, and they want something that looks natural on their property. With 18 years of building in New England and the Master Certified Aquascape Contractor credential, Shawn knows how to shape a swim pond that holds up in loose sand and hard winters.

    Full details, photos, and pricing tiers are on the Natural Swimming Ponds service page, and our pricing calculator gives a ballpark before we visit.

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    Frequently asked questions

    Does sandy soil in Nashua make a natural swimming pool harder to build?

    Not harder, just different. Sand digs quickly but does not hold steep walls, so the crew shapes the excavation with gradual slopes and shelves. Those shelves become the base for stone and for the regeneration zone plants. Good underlayment beneath the liner protects it from settling, and drainage around the basin is planned so rain does not wash out the edges.

    Can kids swim in a natural pool safely?

    Many families build the smaller recreational size specifically for children. It runs about 3 feet deep with a gradual stone or gravel entry. It still needs adult supervision. The water is not treated with chemicals, which many parents prefer, and the plant zone is kept separate from where kids swim.

    What does a swim pond look like in winter?

    It looks like a frozen pond. The plants in the regeneration zone die back for the season, the surface may ice over, and the system rests. There is no cover to wrestle with and no chemical closing. In spring, as the ice melts and plants start growing, circulation brings the water back to clear.

    How long does it take a natural pool to clear after it is built?

    The pond is swimmable soon after filling, but the regeneration zone needs time to mature. Wetland plants root into the gravel over the first season, and as they grow, they take up more nutrients and the water gets clearer. By the second season most ponds are fully settled.

    Ready to talk about your Nashua project?

    Call us to set up a Discovery Meeting and Shawn will visit your Nashua property to talk through a natural swimming pool.