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$0

Down

40%+

Off Electric Bill

3,000+

NY Installations

30 Year

Warranty

Why New York Chooses GreenLeaf

No Subcontractors

Design, permits, and installation all handled by GreenLeaf employees from our East Setauket HQ. The people who quote your system are the people who stand behind it.

3,000+ NY Installs

Homeowners across Long Island and NYC have trusted us with their roofs since 2012. We know PSEG’s process cold, and our trucks are probably in your neighborhood this week.

30-Year Warranty

National Installers have folded and left warranties nobody honors. GreenLeaf is local, established, and still answering the phone 14 years in. We stand by our warranty. 

Google Reviews NABCEP Certified PSEG Long Island BBB Accredited OSHA Certified EnergySage NYSERDA Enphase Tesla Powerwall REC Solar Panels SnapNRack

What Your Neighbors Say

★★★★★
“We were in the market for solar, sat with 3 companies. I gotta say GreenLeaf Solar was the best, from the solar representatives to the installation. Awesome crew! We give them a 10 out of 10.”
— Homeowner in Queens, NY
★★★★★
“From Diana's first visit, one of the friendliest people to work with — she educated me and made sure I was comfortable before moving forward. The financing was a breeze and the crew who came for the install was AWESOME!! I would recommend GreenLeaf.”
— Homeowner in Massapequa, NY
★★★★★
“GreenLeaf Solar's installation was top notch... I've noticed my panels have a protective guide around all the panels. No leaves trapped under the panels, and the guards keep out pest animals.”
— Homeowner in Port Jefferson, NY
Rated 4.7 from 100+ reviews — read them all on Google

Frequently Asked Questions

How much does solar cost on Long Island?
Most GreenLeaf customers go solar for $0 down using financing or a solar lease. Between federal incentives that can cover anywhere from 25% to 35% of a system's cost and New York State's solar tax credit of up to $5,000 plus NYSERDA rebates, going solar has never been more affordable. Every system we design is guaranteed to cost less than what you currently pay PSEG for electricity, and your exact price depends on your usage, which is why we start with a free custom quote.
How long does solar installation take?
Most residential installations take just 1 to 2 days on your roof. The full process from signed agreement to powering on, including engineering, permitting, and PSEG Long Island approval, typically runs 4 to 6 weeks. GreenLeaf handles every step of the paperwork for you.
What warranty comes with my system?
Every GreenLeaf installation includes a 30-year warranty covering your panels, workmanship, and roof penetrations. And because we've been installing on Long Island since 2012, it's a warranty backed by a local company you can actually call, not a national installer that may not be around in year ten.
Does GreenLeaf use subcontractors?
No, never. Design, permitting, and installation are all handled by GreenLeaf employees working out of our East Setauket headquarters. The crew on your roof works for us, and the people who quote your system are the same people who stand behind it.
How does $0 down solar work?
With our solar program, there's no upfront cost and no waiting years to break even. You simply pay a low, predictable monthly rate for the power your panels produce, guaranteed to be less than what PSEG charges you today, and savings start with your very first bill. Monitoring and maintenance are included, so there's nothing to manage. Prefer to own your system outright? We offer that too, and we'll walk you through both options with real numbers from your actual electric bill.

Our Services

The best equipment in the industry, installed by the best crews on Long Island. We pair national brands like Enphase, Tesla, and REC with the kind of local construction expertise that only comes from 3,000+ installs on homes just like yours. Big-name quality, hometown accountability.

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