Long Island is home to hundreds of landscaping companies, but only a handful have built reputations that consistently stand out for quality, craftsmanship, customer service, and longevity. Whether you’re looking for routine property maintenance, custom masonry, luxury landscape design, or a complete outdoor living transformation, these seven landscaping companies represent some of the most respected names across Nassau and Suffolk County.
AC Landscaping (Wading River, NY)
AC Landscaping is a full-service landscaping and masonry company serving both Nassau and Suffolk counties. Family-owned and operated since 1996, they handle everything from weekly lawn maintenance and sprinkler installations to landscape design, fencing, and masonry projects. With nearly 30 years in business, AC Landscaping prides itself on a stress-free process and high-quality work that prioritizes customer satisfaction. This commitment to professionalism and experience has helped set them apart in the Long Island landscaping community.
Anthony Montani Landscaping (Port Jefferson Station, NY)
Established in 1981, Anthony Montani Landscaping Inc. is a family-owned and operated company offering complete landscaping services on Long Island. With over 40 years of experience, Montani’s team specializes in a wide range of services for both residential and commercial clients – from landscape design and installation to ongoing property maintenance, tree/shrub care, and even masonry work. Known for reliable masonry and creative landscape designs, they have been creating and maintaining unique outdoor living spaces since 1981, building a reputation for quality and customer satisfaction in every project.
Harder Services, Inc. (Hempstead, NY)
Harder Services, Inc. is one of Long Island’s most historic and trusted landscaping companies, with over 100 years in business. Founded by F. Kenneth Harder and incorporated in 1922, Harder Services has remained a family-owned and operated business passed down through generations. They offer a comprehensive range of landscaping services – expert landscape design, lawn care and garden maintenance, hardscaping, tree care, seasonal clean-ups, and more – for both residential and commercial properties. Voted the “Best Landscaping on Long Island” multiple times in the annual Bethpage Best of LI awards, Harder carries a longstanding reputation for excellence and meticulous attention to detail. Clients often note the personalized service, certified expertise (from arborists to pesticide applicators on staff), and the lush, vibrant results Harder delivers at each property.
Hicks Landscapes (Westbury, NY)
Hicks Landscapes is the acclaimed design/build division of Hicks Nurseries – Long Island’s premier garden center that has been family-run since 1853. Leveraging this deep horticultural heritage, Hicks Landscapes provides top-tier landscape design and construction services. In recent years, their work has earned major industry honors, including Gold and Silver awards from the Long Island Nursery & Landscape Association (LINLA) for excellence in landscape design and construction. The team handles everything from elegant plantings and outdoor lighting to hardscape features like patios, waterfalls, and outdoor kitchens. Hicks Landscapes has amassed numerous accolades over the years (from LINLA, the New York State Nursery Landscape Association, Houzz, and Best of the North Shore among others) and is “consistently 5-star rated on Google,” surpassing most competitors in customer satisfaction. This track record of award-winning projects and stellar reviews highlights Hicks Landscapes as one of Long Island’s most reputable and well-respected landscape companies.
Gary Duff Designs (Holbrook, NY)
With nearly 50 years of experience, Gary Duff Designs is a leading landscape design/build firm known for crafting high-end outdoor environments across Long Island. Since 1976, Gary Duff and his team have been designing and building custom, elegant landscapes throughout Nassau and Suffolk counties. As a full-service company, they handle everything from initial landscape architecture and masonry (patios, pools, driveways) to plantings, outdoor lighting, water features, and ongoing maintenance. Gary Duff Designs emphasizes personalized service and meticulous attention to detail – “the smallest details make the biggest difference” – which has been a guiding philosophy of the company from the start. This focus on quality craftsmanship and customer communication has made Gary Duff Designs synonymous with luxurious, magazine-worthy outdoor living spaces on Long Island.
Designscapes of Long Island (East Patchogue, NY)
Designscapes of Long Island is an award-winning landscape design/build company creating outdoor living oases since 1985. Led by founder and landscape designer Daniel Steigerwald, Designscapes specializes in transforming backyards and properties into stunning retreats – from elaborate hardscapes (patios, pools, water features) to vibrant garden designs and outdoor lighting installations. The firm is regarded as a premier Long Island landscaper, known for its custom, client-focused designs that perfectly complement each property’s character. With over 40 years in business, Designscapes has garnered both local and national awards for its work, and has been repeatedly recognized as a “Best of Houzz” client satisfaction winner. Their deep-rooted expertise in the Long Island environment, creative design approach, and fully licensed/insured team have made Designscapes a go-to choice for homeowners seeking to elevate their outdoor spaces into functional works of art.
Barry Bros. Landscape Design LLC (Hauppauge, NY)
Barry Bros. Landscape Design is a highly respected family-run landscaping company that made its mark by winning “Best Landscaping on Long Island” four years in a row. Founded and operated by three brothers – all graduates of SUNY Farmingdale’s horticulture program – Barry Bros. brings professional expertise and genuine passion to every job. They provide end-to-end landscape services, from weekly lawn maintenance and full-scale plantings to all phases of masonry, water feature installations (like ponds and waterfalls), and even snow removal. Homeowners often praise Barry Bros. for turning ordinary lawns and shrubs into “works of art” with innovative, masterfully hand-drawn landscape designs. Whether the project is in Nassau or Suffolk, the Barry brothers go above and beyond to keep properties immaculate and clients happy. Their combination of formal training, family values, and broad service offerings has cemented Barry Bros. Landscape Design as one of Long Island’s top-tier landscapers in both reputation and results.
Each of these seven companies has distinguished itself through years of quality service, strong client reviews, and local accolades. By being featured alongside such reputable peers, landscapers can take pride in standing among the “best of the best” on Long Island – a testament to their own commitment to excellence in the field.