Portfolio
Custom Outdoor Living Spaces Designed Across Long Island
50 Years of Purposeful Design & Enduring Craft
For five decades, Gary Duff Designs has shaped Long Island’s most distinctive outdoor environments, from complete transformations to intimate backyard spaces. Each project reflects our family’s legacy of trust, creativity, and design intention.
Explore Our Work
Every property presents a new opportunity to design with purpose. Browse by category to find inspiration that matches your vision.
Let’s Create the Space You’ve Been Waiting For
You deserve more than a contractor, you deserve a partner who treats your home as their own. Whether you’re planning a luxury landscape or a focused outdoor remodeling project, we’ll help design and build a space that’s purposeful, enduring, and unmistakably yours.
Where Our Craft Becomes Your Story
“We’ve used Gary Duff Designs For over 25 years and recently had a major refresh done to the outside of our house-and have to say that the experience was amazing! Every little detail taken care of-from their fantastic design elements to their tireless, hard-working staff”
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— Noah R., via Google
Built on family, refined by design.
Celebrating 10,000+ Projects
& 50 Years of Gary Duff Designs.
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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Our portfolio showcases everything from complete outdoor living environments to focused upgrades like patios, pools, outdoor kitchens, and lighting. Each project reflects our family’s design philosophy, intentional, cohesive, and built to stand the test of time.
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Yes. Every project featured was designed and built by our family-led team right here on Long Island, NY. It’s where we live, work, and have spent five decades shaping some of the region’s most distinctive landscapes.
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In some cases, yes. Many of our clients are happy to share their experience and allow potential homeowners to see our work firsthand. Just ask during your consultation, and we’ll let you know what’s possible.
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That’s what our design consultation is for. We’ll walk your property, talk through your goals, and determine whether you need a single feature, like a paver patio or outdoor kitchen, or a complete landscape transformation.
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We take on select projects starting at $10K, and the same care and attention go into every design, regardless of scope. If the fit feels right, we’ll bring your vision to life with the same precision and creativity that define our legacy.
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.