Cultivating Excellence from the Ground Up

The Mahoney team is dedicated to cultivating excellence in every Hamptons landscape we design, install, and maintain, and every interaction we have with our clients and partners.

Founded in 1999 with three employees, Mahoney Associates has grown to be one of the Hamptons leading full-service landscape firms with a team of landscape management and construction professionals, designers, horticulturists, arborists, and turfgrass experts.

These are the foundational principles upon which we've built our company, and that continue to support our growth.

We nurture respect, professionalism, accountability—and landscapes.

Our business is built on loyalty to our customers, a sense of duty to the community, and an unwavering commitment to the well-being and growth of our employees. We aim to exceed expectations and deliver a high-quality product with every service.

We're dedicated to building lasting relationships and landscapes that thrive.

Plants and relationships thrive when caretakers go the extra mile and invest in their success. We back up our commitment with Mahoney's LIFETIME WARRANTY on all newly installed plantings.

Our standard of excellence is evident in our safety record, the most important aspect of our operation.

Mahoney Associates is the proud recipient of the National Association of Landscape Professionals' Safety Award, year after year.

Mahoney Associates is where landscape employees come to build careers.

We continually invest in the growth and well-being of our team with coaching, mentoring, learning, on the job training, and professional education.

Green is more than just the color of our lawns.

We're conscious of the environmental impact of every product and piece of equipment we use. This is evident in our fleet of electric cars, our organic programs for plant health care, lawn and specialty applications, and our landscape designs for revegetation, sensitive eco-systems, and pollinator gardens.

We invest for long-term success and growth.

Our investment in innovative technology, the highest quality materials, professional grade equipment, and the safety and professional development of our team, sets Mahoney Associates apart as the industry leader in professionalism, expertise, innovation and service.

We transform landscapes into brilliant gardens and luxurious outdoor spaces from Westhampton to Montauk, including Quogue, Hampton Bays, Southampton, Water Mill, Bridgehampton, Sag Harbor, Sagaponack, Wainscott, East Hampton, Amagansett, North Haven, Shelter Island and surrounding areas in Suffolk County, New York.