15 Best Solar Companies in East Islip, NY (2024 Reviews)

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

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

Average East Islip homeowner saves $1,842/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated February 01, 2024

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 East Islip

When choosing between the best solar companies, East Islip homeowners have more options than ever before, which can be mind-boggling, but we’re here to make making the switch to solar power that much easier. While solar power is a sizable investment, you’ll be able to make that expense back and then some, all while helping to protect the planet. In fact, you could end up with savings of about $22,000 over 20 years.


If you’re considering going solar, the first step to make is to find the best solar companies in East Islip and compare quotes. The good news is we went ahead and came up with a list of the best solar companies to make your life easier.To start getting free quotes from the best solar companies in East Islip, you can click "get quote" below.

Best National Provider

SunPower

★★★★★
5.0
  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

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 East Islip

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.0/5

SunPower

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

Services Offered

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

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

3.0/5

SunPower Master Dealer SOLAR

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

Services Offered

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

Website: http://www.kamtechsolarny.com/
Address: 117 Bay 8th St, Brooklyn, NY 11228
Phone: 8002945045
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Sunrun Solar

  • Pros icon Free Quotes
  • 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 Consultation
  • Service icon Battery Storage
  • Service icon Grid-Tied Solar System
  • Service icon Skilled Repairs
  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Permit Assistance

Website: https://www.sunrun.com/
Address: 10 New Maple Ave, Pine Brook, NJ 07058
Phone: 8333245886
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Harmony Energy

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

Services Offered

  • Service icon Panel Installation
  • Service icon Consultation

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

EcoWatch Rating

5.0/5

Leviathan Solar

  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • Pros icon Reliable Customer Support
  • 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

4.9/5

Long Island Power Solutions

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

Services Offered

  • Service icon Panel Installation
  • Service icon Financing Assistance
  • Service icon Grid-Tied Solar System
  • Service icon Battery Storage
  • Service icon Consultation

Website: https://www.lipowersolutions.com/
Address: 2060 Ocean Ave, Ronkonkoma, NY 11779
Phone: 6313480001
Outstanding Local Installer
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EcoWatch Rating

4.9/5

NYS Essential Power

  • Pros icon Informative Resources
  • Pros icon Reliable Customer Support
  • Pros icon Prompt Service Delivery
  • 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: https://www.nysessentialpower.com/
Address: 13 Trade Zone Dr, Ronkonkoma, NY 11779
Phone: 6314002680
Outstanding Local Installer
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EcoWatch Rating

4.8/5

Hytech Home

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

Services Offered

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

Website: https://hytechhome.com/
Address: 6 Washington Ave, Bay Shore, NY 11706
Phone: 8883943111
Outstanding Local Installer
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EcoWatch Rating

4.7/5

SUNation Energy

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

Services Offered

  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Cleaning and Maintenance
  • Service icon Community Solar Projects
  • Service icon Grid-Tied Solar System
  • Service icon Skilled Repairs
  • Service icon Tesla Powerwall
  • Service icon Permit Assistance
  • Service icon Panel Installation

Website: https://www.sunation.com/
Address: 171 Remington Blvd, Ronkonkoma, NY 11779
Phone: 6317509454
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

5.0/5

Marcor Solar

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

Services Offered

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

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

EcoWatch Rating

3.0/5

Sunshine Plus Solar Corp - Solar Panel Company Long Island

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

Services Offered

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

Website: http://www.sunshineplussolar.com/
Address: 399 Little East Neck Rd, West Babylon, NY 11704
Phone: 6314223500
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Surf Clean Energy

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

Services Offered

  • Service icon Panel Installation
  • Service icon Consultation

Website: https://surfcleanenergy.com/
Address: 111 Smithtown Bypass, Hauppauge, NY 11788
Phone: 8666317873
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Bohemia Commercial Solar Clean Energy Solutions

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

Services Offered

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

Website: http://bohemiasolarcleanenergysolutions.com/
Address: 1424 County Road 93, Bohemia, NY 11716
Phone: 6316997022
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Long Island Solar Sales

  • Pros icon Informative Resources
  • 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 Battery Storage
  • Service icon Panel Installation
  • Service icon Consultation

Website: http://longislandsolarsales.com/
Address: 222 Verona Pkwy, Lindenhurst, NY 11757
Phone: 5167691386
Outstanding Local Installer
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EcoWatch Rating

3.0/5

US Solar Enterprise

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Panel Installation

Website: http://www.us-solar.net/
Address: 1320 Lincoln Ave # 13, Holbrook, NY 11741
Phone: 8772076527

Methodology: How We Ranked the Best Solar Companies in East Islip

EcoWatch's solar experts analyzed each solar company in East Islip 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 East Islip


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 East Islip

The cost of putting up a solar panel system has gone down greatly over the past several years, but it’s still a large investment for most homeowners.Some important things that affect the cost and possible savings include:

  • The amount of sunlight your roof gets: Due to East Islip’s high amount of average daily sunlight, you should be able to save a decent amount on your electricity bills.
  • The make and model of solar panels you’re planning on getting: Some have higher prices, so that will influence your budget for your solar project.
  • Incentives: Something that can make your solar project cost less 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 a decent amount of money on your power bills, which can lead to an average of $22,000 of savings over 20 years.
  • Your energy bills: This will affect your savings. In East Islip, the average resident can save about $1,500 a year on their electricity bills.

Solar is a worthwhile investment for most homeowners. You can make your own energy instead of paying for it from a utility company and make use of solar incentives, all while helping the planet.

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Solar Incentives in East Islip

To increase the number of homes and businesses that use solar power, federal and local governments – and even some utility companies – offer incentives to help make going solar more affordable and accessible.Regardless of what state you live in, you can take advantage of the federal Solar Investment Tax Credit (ITC), which lets you claim 0 of how much your solar project cost on your tax return, reducing the amount of taxes you owe that year. Additionally, there may be some state and city incentives that stack with the ITC too. You can learn about the incentives you can take advantage of in our article on solar incentives

Environmental Impact of Switching to Solar in East Islip

One of the most compelling reasons to adopt solar power is to minimize your reliance on nonrenewable energy sources like burning fossil fuels, which are damaging for the environment.Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in East Islip, though. In a city like East Islip where commute times can be very long, going solar can help help reduce the carbon footprint of being on the road a lot.In East Islip, the average resident can reduce their carbon footprint by 100 pounds a year once they go solar. For homeowners who are worried about the environment, the upfront cost of solar is a small price to pay for offsetting your carbon emissions.

Best National Provider

SunPower

★★★★★
5.0
  • Most efficient panels on the market
  • National coverage
  • Cradle to Cradle sustainability certification
  • Great warranty coverage
  • Expensive
  • Customer service varies by local dealer

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 East Islip, NY Solar Company Rankings FAQs

Which solar installation company is the best near me?

The highest-rated local solar company in East Islip is SunPower, with a rating of 4.00 stars.

What is the negative environmental impact of solar panel manufacturing?

Solar panels can be detrimental 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.

How long does it take to see a return on your investment after getting solar panels?

The average payback period for solar panel installation is about 11.1 years, but the exact period depends on the cost of electricity where you are, incentives and net metering programs.

When should I put up solar panels?

Despite summer being the most popular time people install solar panels, the optimal time is actually winter. You can save money since there's less demand during the winter months, and it allows you to be up and running with solar for the higher power bills you may get during the summer.

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.