15 Best Solar Companies in Hempstead, NY (2025 Reviews)

We analyzed over 1500 solar companies in the nation,
and have selected the top 15 in Hempstead based on:

  • Customer review scores
  • Service area for Hempstead, NY
  • Company policies and services offered
  • Accreditations and certifications

Average Hempstead homeowner saves $2,008/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated January 24, 2025

Why you can trust EcoWatch

We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

Best Solar Companies in Hempstead

Looking for the best solar companies in Hempstead? Installing a solar panel system is an exciting venture that many homeowners find rewarding for their wallets, communities and the planet. With high levels of average daily sunlight in Hempstead, the solar industry is doing fairly well. An overlooked driver of this has been national and statewide incentives that support residential and commercial solar projects.


If you’re planning on going solar, the first step to make is to find the best solar companies in Hempstead and compare quotes. The good news is we went ahead and compiled a list of the best solar companies to make it easier on you.Continue reading to see our picks for the top solar companies in the city, or get connected with a highly rated solar company near you right away by clicking the button below.

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Best Regional Coverage

Momentum Solar

★★★★★
4.5
  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch Rankings for Solar Companies in Hempstead

Best Local Installer
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EcoWatch Rating

4.8/5

Kamtech Solar Solutions

  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation

Website: http://kamtechsolar.com/
Address: 203 B Sheridan Blvd, Inwood, NY 11096
Phone: 7187362862
Outstanding Local Installer
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EcoWatch Rating

3.0/5

SunPower

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Consultation

Website: http://us.sunpower.com/
Address: 400 Executive Blvd Suite 137, Elmsford, NY 10523
Phone: 8007867693
Outstanding Local Installer
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EcoWatch Rating

4.4/5

Trinity Solar

  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Permit Assistance

Website: https://www.trinity-solar.com/
Address: 62 Leone Ln, Chester, NY 10918
Phone: 8777867283
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Advanced Solar Solutions

  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Panel Installation

Website: http://advancedsolarny.com/
Address: 14134 71st Ave, Queens, NY 11367
Phone: 3474558430
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Marcor Solar

  • Pros icon Free Quotes
  • Pros icon Family-Operated Business
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Skilled Repairs

Website: https://www.marcorsolar.com/
Address: 135 Dale St, West Babylon, NY 11704
Phone: 6313549106
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Solar Pro

  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Permit Assistance
  • Service icon Panel Installation

Website: https://www.solarprony.com/
Address: 139 Stuyvesant Ave, Brooklyn, NY 11221
Phone: 7189627699
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Leviathan Solar

  • Pros icon Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation

Website: https://leviathansolar.com/
Address: 1993 Pond Rd, Ronkonkoma, NY 11779
Phone: 6315532732
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Harmony Energy

  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Panel Installation

Website: http://www.harmonyenergy.org/
Address: 80 Orville Dr, Bohemia, NY 11716
Phone: 6312441679
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Precision Solar

  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Permit Assistance
  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Grid-Tied Solar System

Website: https://precisionsolarenergy.com/
Address: 445 Hamilton Ave #1102, White Plains, NY 10601
Phone: 9142205877
Outstanding Local Installer
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EcoWatch Rating

5.0/5

GreenLeaf Solar

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Con icon Limited information available on website

Services Offered

  • Service icon Solar Carports
  • Service icon Panel Installation

Website: https://gogreenleafsolar.com/
Address: 11 Technology Dr, Setauket- East Setauket, NY 11733
Phone: 6315091747
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Solar X - Solar Maintenance Professionals

  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Prompt Service Delivery
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon System Decommissioning
  • Service icon Cleaning and Maintenance
  • Service icon Skilled Repairs

Website: http://www.solarxpros.com/
Address: 3455 NJ-66 Suite 3B, Neptune Township, NJ 07753
Phone: 7329926323
Outstanding Local Installer
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EcoWatch Rating

5.0/5

SSAY Solar Savings All Year

  • Pros icon Clear Pricing Policy
  • Pros icon Informative Resources
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon System Decommissioning
  • Service icon Consultation

Website: http://www.solarsavingsallyear.com/
Address: 8 Rusten Ln, Nanuet, NY 10954
Phone: 8084890251
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Supreme Solar Services

  • Pros icon Prompt Service Delivery
  • Pros icon Reliable Customer Support
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Consultation
  • Service icon Skilled Repairs
  • Service icon Cleaning and Maintenance

Website: http://supremesolarservices.co/
Address: 432 Nixon Ave, Bayville, NJ 08721
Phone: 7325756518
Outstanding Local Installer
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EcoWatch Rating

4.9/5

J Synergy Green, Inc.

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance

Website: http://www.jsynergyllc.com/
Address: 99 Main St, East Rockaway, NY 11518
Phone: 5163312020
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Solar Mentor

  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Reliable Customer Support
  • Pros icon Informative Resources
  • Pros icon Prompt Service Delivery
  • Con icon Limited information available on website

Services Offered

  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Permit Assistance

Website: https://www.solarmentor.com/
Address: 16426 Metcalf Ave, Flushing, NY 11365
Phone: 7183742629

Methodology: How We Ranked the Best Solar Companies in Hempstead

EcoWatch's solar experts analyzed each solar company in Hempstead based on criteria such as its reputation in the industry, customer reviews, services, warranty coverage and financing. Using this solar methodology, we used the data we collected to rate and rank each company and narrow down our picks for the best solar companies in Hempstead


Below are some the criteria we examined specifically for New York solar companies

  • Brand reputation and certifications (20%): We take each company's Better Business Bureau (BBB) score into consideration, as well as how long the installer has been in business (at least 5 years is required, 10 preferred) and what type of solar certifications it holds.
  • Customer reviews (20%): Trust is a top priority at EcoWatch, so we take customer experience under close consideration. We scour different review sites and customer testimonials when ranking our top solar companies, checking sites such as Trustpilot and Google Reviews. We also consider any potential complaints or lawsuits filed against these companies and award or remove points accordingly.
  • Warranty (20%): A company earns a perfect score in this category if it offers 25-year warranties that cover performance, product and workmanship. The industry standard that we measure companies against is 25-year product and performance warranties, along with a 10-year workmanship warranty. We also look closely into the track record of the post-installation support each company provides in terms of honoring its contracts
  • Solar services (10%): All of the companies we review install solar panels, but we award companies higher points if they offer additional services for customers, like battery installation, energy-efficiency audits, and EV chargers.
  • Pricing and financing (10%): It's hard to get exact quotes for solar projects, but we use marketplace research to determine how each company prices its equipment and installation services. Additionally, companies that offer more help for panel financing — like in-house loans, leases, or PPAs — score higher than those that don't.
  • Availability (10%): The bigger the service area, the higher the company will score.
  • Transparency and accessibility (5%): Solar installers that offer free consultations and easy contact methods score higher in this category.
  • Environmental, social and corporate governance factors (5%): A company earns a perfect score in this category if it offers public data disclosure, addresses end-of-life (EOL) products or processes, and demonstrates a commitment to uplifting the communities that it serves.

The Cost and Benefits of Solar in Hempstead

Solar panels are powered by a free energy source — the sun — but to take advantage of this you must first pay to install your panels.A few main factors that affect how much it will cost to install solar panels on your home and how much it could save you over time include:

  • Your income and budget: This shapes what type of solar panels you can afford.
  • Your current energy bills: Solar panels can noticeably reduce, or totally eradicate, your utility bills. In Hempstead, you can save an average of $1,555 a month.
  • Your home's orientation toward the sun: This, plus the configuration of your roof, affects affect how much power your solar panels can generate.
  • Incentives: One thing that can save you money on your solar project is the solar investment tax credit (ITC), which is a tax credit that lets you deduct from your taxes a percentage of the project cost. You can also save money on your energy bills, which can result in an average of $24,000 of savings over 20 years.

So is buying solar panels worth it? Whether you’re trying to reduce your electricity costs, carbon emissions or both, solar panels are a solid investment for many Hempstead homeowners.

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Solar Incentives in Hempstead

If you’re thinking about switching to solar energy, several government incentives and tax credits can dramatically lower your project costs and speed up the return on your investment.When you install solar panels, you can take advatage of the federal tax credit, or ITC. This credit currently lets you lower your tax bill by 0 of the cost of your solar panels. In addition, there are often some local incentives that you can benefit from to further cut back on the cost of solar of solar panels. Take a look at our article on solar incentives to find out what incentives you can benefit from.

Environmental Impact of Switching to Solar in Hempstead

Going solar can have a beneficial impact on the environment.Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in Hempstead, though. In a city like Hempstead where energy use is somewhat high, switching to solar energy is a fantastic plan for homeowners who are eco-conscious.In fact, if you make the switch to solar power, you could expect to reduce your carbon dioxide emissions by about 50 pounds each year. For people who want to help the environment, the upfront cost of solar is a small price to pay for reducing your carbon footprint.

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Best Regional Coverage

Momentum Solar

★★★★★
4.5
  • Great warranty coverage
  • Representatives are experts on local policies
  • Concierge service ensures steady communication
  • Slightly limited service offerings

Best for Leasing

Sunrun

★★★★★
4.0
  • Expansive service area
  • Many financing options
  • Some reported issues with customer service
  • Some reported issues with door-to-door sales

EcoWatch's Hempstead, NY Solar Company Rankings FAQs

Which solar panel installer is the best near me?

In Hempstead, Kamtech Solar Solutions is the best local solar company. Our team of experts rates it 4.80 stars, so it's a solid choice if you're planning on installing solar panels on your roof.

What is the negative environmental impact of making solar panels?

Solar panels can be harmful for the environment when manufacturers use toxic chemicals in the manufacturing process. Chemicals can make solar panels difficult to dispose of safely once they’ve reached the end of their lifespan. Making solar panels uses a lot of energy as well. The energy payback period is about 1 to 4 years.

Are solar panels worth it?

Solar panels need a considerable upfront investment that usually costs at least ten thousand dollars, but whether or not solar panels are worth it depends on a variety of factors like local electricity rates and the amount of direct sunlight your roof gets.

How often do solar panels need to be replaced?

Even though the average lifespan of solar panels is 25 to 30 years, that doesn't mean they stop working completely. What this means is how much energy they produce will have decreased by about 0.8% each year since installing them. You can replace them after having them for that long or you can continue to use them at a lower efficiency after that time.

Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert’s opinion on the top solar companies featured here, follow this link.

Company research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.