Complete Outdoor Living
Outdoor Living Contractor for Custom Spaces on Long Island
Elevating Long Island’s Outdoor Living Experience
Each backyard design tells a story of craftsmanship, creativity, and care. Our work blends design intelligence with hands-on expertise, delivering luxury landscapes that inspire daily connection, celebration, and calm.
Build the Outdoor Life You’ve Earned
Every home deserves an outdoor space that feels intentional, an environment planned as carefully as its interiors. At Gary Duff Designs, we create custom outdoor environments that elevate how Long Island lives outside. From refined backyard design to complete outdoor remodeling, our family-led team brings five decades of landscape architecture and construction expertise to every project.
Invest in a Space That Works as Hard as You Do
Transforming your property isn’t about excess, it’s about creating custom outdoor environments that work effortlessly for your lifestyle and reflect your standards. Here’s what an integrated outdoor living design makes possible:
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Every element, hardscape, planting, and structure, works together with purpose.
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A space designed for gathering, relaxing, and living outdoors year-round.
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One team coordinating every trade, detail, and schedule.
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Materials and methods chosen for lasting performance and appeal.
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Elevated curb appeal and livable luxury that enhances resale.
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Five decades of excellence serving Long Island, NY homeowners.
OUR PROCESS
A Proven Approach to Outdoor Living Design & Build
We make outdoor transformation effortless through a guided, transparent process.
Consult & Discover
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We learn how you live, your goals, and your home’s unique character.
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Design With Purpose
Our design team crafts a detailed plan for beauty, balance, and use.
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Build & Manage
We oversee every phase of landscape construction to deliver an exceptional result.
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Enjoy for Decades
Step into a fully realized outdoor environment designed to mature beautifully over time.
See the Transformation
Where Our Craft Becomes Your Story
“Gary & Eric completely transformed my property in a way that I couldn't have imagined. Their vision, attention to every detail, and high end craftsmanship was exactly what I was looking for. I was very impressed and have already hired them for another project.”
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— Tim R., via Google
Guidance from Gary Duff Designs
Decades of experience have taught us a few things. Here's what most clients want to know before we start.
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Complete outdoor living covers the entire property as one design rather than a series of separate improvements. That can mean a new patio and outdoor kitchen, or a fully integrated plan bringing together landscape design, lighting, plantings, structures, and pools. Gary Duff Designs handles every element from concept through construction so the finished space reads as a single environment. Homeowners choose this approach when they want the whole yard solved at once instead of improved in pieces over several years.
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Gary Duff Designs is a family-led design-build firm, which means the same team designs your project, manages it, and builds it. Your designer, builder, and project manager all answer to one name rather than to separate companies. Specialty crews such as pool construction and electrical work under our direct management, so coordination between trades stays our responsibility instead of yours. That structure is what keeps consistency and craftsmanship intact from the first sketch through the final walkthrough.
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Long Island's coastal and wooded landscapes present specific conditions, and Gary Duff Designs has spent decades learning how they behave. Salt air, humidity, freeze-thaw cycles, and wind exposure all shape which materials and plantings hold up on a given property. Designs respond to local climate, architecture, and the way families here actually use their yards through the seasons. A protected North Shore lot and an exposed South Shore property get very different plans, and treating them the same is where most outdoor work fails early.
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Gary Duff Designs takes on select projects starting at $10K, with full-property outdoor living environments representing a considerably larger investment. What drives the number is scope, site conditions, material selections, and access, which is why two properties of similar size can price very differently. Grade changes, drainage work, and tight equipment access all affect cost before a single finish material is chosen. During your consultation, we outline clear options tied to a real plan so you can adjust priorities before committing.
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Timelines depend on design complexity, permitting, and the season the project starts. Most full-property outdoor projects take several weeks in design and a few months to build, with municipal approvals and material lead times factored into the schedule up front. Gary Duff Designs builds those realities into the timeline rather than discovering them mid-project. When something shifts for weather or inspections, you hear it from us directly instead of noticing it yourself.
Celebrating 50 Years of design excellence
50 Years of Designing Outdoor Spaces
10,000+ Projects That Transform How People Live.
Enhancing The Quality Of Life Through Landscape Design
For five decades, the Duff family has been redefining outdoor living across Long Island, one purposeful, beautifully built space at a time.
