• Each design enhances its surroundings, never competes with them.

  • Each system is engineered for sustainability, clarity, and harmony.

  • Built for Long Island’s terrain, climate, and soil conditions.

  • Precision-built water elements that perform beautifully for years.

  • Every project carries our family’s signature attention to detail.

  • Natural backyard pond with layered stone waterfall and surrounding greenery in Stony Brook, NY

    Ponds

    Balanced ecosystems designed for clarity, reflection, and serenity.

  • Multi-tier stone waterfall flowing into a landscaped pond in Miller Place, NY

    Waterfalls

    Natural or architectural forms that bring sound, energy, and movement.

  • Pool water wall with sheer descents integrated into a custom swimming pool in Old Westbury, NY

    Sheer Descents & Pool Water Walls

    Modern, linear water elements that add elegance and sound to poolscapes.

  • Classic courtyard fountain with carved stone basin near the home entrance in Manhasset, NY

    Fountains

    Sculptural statements or quiet accents that create atmosphere and rhythm.

  • Custom black stone water feature with cascading water walls beside a modern pool in Brookville, NY

    Custom Water Features

    Integrated designs that blend artistry, engineering, and environment.

  • Laminar Jets

  • That depends on your goals, layout, and sound preference. Some homeowners want the stillness of a pond, others prefer the motion and sound of a waterfall or sheer descent. We’ll help you design one that feels natural to your home and landscape.

  • Not when designed correctly. Our systems are engineered for balance and efficiency—using proper filtration, circulation, and materials that minimize upkeep while maximizing clarity and performance.

  • Absolutely. We frequently integrate fountains, pool water walls, and sheer descents into existing outdoor spaces. Every design is customized to blend seamlessly with what’s already there.

  • After fifty years working on Long Island, NY, we know how to build for the freeze-thaw cycles and coastal air that define the region. Every water feature we create is built to last—both structurally and visually.

  • Every project is unique. The investment depends on the scale, materials, and design details. During your consultation, Gary Duff Designs will outline the best approach for your property—whether you’re envisioning a simple fire ring or a full custom stone fireplace.