Business Details
40 Years
experience
Trusted Lawn Care Services in Long Island, NY
Green Supreme has been a trusted lawn care provider on Long Island since 1986, specializing in environmentally responsible treatments. Our family-owned business combines over 38 years of hands-on experience with NYSDEC-certified expertise to address lawn issues through fertilization, weed control, disease management, and turf restoration. Our technicians, John and Eric, leverage decades of local knowledge to deliver personalized solutions tailored to Long Island's unique climate. By integrating Integrated Pest Management techniques, we balance ecological responsibility with delivering lush, healthy lawns.Our commitment to quality service is evidenced by hundreds of satisfied customers and consistent neighborhood recommendations. We maintain full transparency through advance service notifications, safety protocols during applications, and ongoing client education about lawn care best practices. Our proven three-step service process simplifies lawn maintenance while our core aeration and seeding services offer cost-effective alternatives to sod replacement.
Services
Lawn Fertilization
Weed Control
Disease Treatment
Insect Control
Aeration & Seeding
Soil Analysis
Turf Restoration
Pest Management
Lawn Renovation
Details
- Year established: 1986
Highlights and features
- Family-owned business serving Long Island for 38+ years
- NYSDEC-certified pesticide applicators on staff
- Customized lawn solutions with Integrated Pest Management
- Transparent communication with advance service notifications
- Core aeration and seeding services that restore lawns
Associations and certifications
- NYSDEC
What people say
Exceptional customer service
Lawn has never looked better
Highly recommended
Knowledgeable and efficient
On time service
Services
Lawn Fertilization
Our 5x yearly granular slow-release fertilization program nourishes lawns throughout growing seasons. Using professional-grade products, we strengthen root systems and promote vibrant green growth while maintaining environmental responsibility. The timed applications ensure optimal lawn health across Long Island's changing climate conditions.
Weed Control
Targeted weed management includes pre-emergent crabgrass control in spring and broadleaf weed treatments throughout the season. Our technicians identify specific weed types affecting your lawn and apply precise solutions to eliminate unwanted growth while protecting desired turf.
Disease Treatment
Diagnosis and treatment of common Long Island lawn diseases like Red Thread, Dollar Spot, and Brown Patch. Using commercial fungicides applied at optimal times, we prevent disease spread and restore lawn health through proven diagnostic and treatment protocols.
Aeration & Seeding
Core aeration breaks down thatch and compaction while creating ideal conditions for new growth. Combined with custom seed blends tailored to Long Island's environment, this service rejuvenates damaged lawns without expensive sod replacement, creating thick, lush turf.
Soil Analysis
Comprehensive soil testing identifies pH imbalances and nutrient deficiencies affecting lawn health. Our lab-certified analysis determines precise lime application rates needed to optimize soil conditions, ensuring maximum nutrient uptake and turf vitality across Long Island's typically acidic soil.
People
John Kirsch
Co-Owner
With 50+ years in lawn care since starting with his father in 1971, John founded Green Supreme in 1986. NYSDEC-certified since 1986, he brings decades of practical experience diagnosing and treating Long Island lawns through changing climate conditions.
Eric Kirsch
Co-Owner
Second-generation lawn care professional Eric joined the family business in 2007 and obtained his NYSDEC certification in 2010. He combines modern pest management techniques with inherited expertise to continue Green Supreme's tradition of quality service.
Questions
What lawn services do you offer?
We provide fertilization, weed control, disease treatment, insect management, aeration & seeding, soil analysis, and complete turf restoration services for Nassau & Suffolk County lawns.
How long have you been serving Long Island?
Green Supreme has specialized in Long Island lawn care since 1986. Our technicians have over 38 combined years of local experience identifying and solving regional lawn issues.
Are your technicians certified?
Yes, both owners hold current NYSDEC pesticide applicator certifications (C1016489 and C1877579) and maintain DEC Business Registration #06219 for all pesticide applications.
What areas do you service?
We serve Nassau County areas including Massapequa, Farmingdale, Seaford, and Suffolk County locations like Amityville, Copiague, and Lindenhurst. Our local knowledge ensures tailored lawn solutions.
How do you handle lawn diseases?
Our process includes visual diagnosis using 35+ years of experience, followed by targeted fungicide applications timed to disease life cycles. We educate clients about ongoing lawn care practices to prevent future outbreaks.
What payment methods do you accept?
We accept credit card and debit card payments through our secure online portal. Customers can view service history, track balances, and schedule payments conveniently from their personal accounts.
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