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 June 24, 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

As a homeowner in East Islip, you may be interested in switching to solar energy and wondering about the best solar companies in your area. Solar could be a fantastic choice since it comes with a lot of benefits. Because solar panels generate their own electrical power, they can vastly reduce your electricity bill each month, if not completely eliminate it. In fact, you could be looking at about $22,000 of savings over 20 years.


As you begin your search for the best solar companies in East Islip, you might realize that there are a large number of providers to choose between. So, we’ve organized an expertly curated list of the top solar companies in the area.To get free quotes from the top-rated solar companies in East Islip, click the "get quote" button below.

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

Best Social Impact

Palmetto Solar

★★★★★
4.0
  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

EcoWatch Rankings for Solar Companies in East Islip

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.8/5

Kamtech Solar Solutions

  • Pros icon ed_content
  • Pros icon free_inspection
  • 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
ecowatch badge icon

EcoWatch Rating

3.0/5

SunPower

  • Pros icon free_inspection
  • Pros icon customer_service
  • Pros icon price_transparency
  • Pros icon ed_content
  • 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

4.9/5

Ion Solar Pros

  • Pros icon customer_service
  • Pros icon free_inspection
  • Pros icon price_transparency
  • Pros icon ed_content
  • Con icon Limited information available on website

Services Offered

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

Website: http://www.ionsolarpros.com/
Address: 751 Straits Turnpike Suite 2000, Middlebury, CT 06762
Phone: 8605445362
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Harmony Energy

  • Pros icon customer_service
  • Pros icon price_transparency
  • Pros icon ed_content
  • Pros icon free_inspection
  • 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
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EcoWatch Rating

5.0/5

Leviathan Solar

  • Pros icon ed_content
  • Pros icon customer_service
  • Pros icon price_transparency
  • 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 ed_content
  • Pros icon free_inspection
  • Pros icon customer_service
  • Pros icon award_winning
  • Pros icon price_transparency
  • Con icon Limited information available on website

Services Offered

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

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 price_transparency
  • Pros icon customer_service
  • Pros icon timeliness
  • Pros icon ed_content
  • 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

SUNation Energy

  • Pros icon customer_service
  • Pros icon free_inspection
  • Pros icon price_transparency
  • Pros icon ed_content
  • Pros icon award_winning
  • Con icon Limited information available on website

Services Offered

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

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

4.8/5

Hytech Home

  • Pros icon ed_content
  • Pros icon customer_service
  • Pros icon price_transparency
  • Pros icon free_inspection
  • Pros icon timeliness
  • Con icon Limited information available on website

Services Offered

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

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

5.0/5

Marcor Solar

  • Pros icon ed_content
  • Pros icon family_owned
  • Pros icon free_inspection
  • Pros icon award_winning
  • Pros icon price_transparency
  • 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

5.0/5

GreenLeaf Solar

  • Pros icon ed_content
  • Pros icon free_inspection
  • Pros icon customer_service
  • Pros icon price_transparency
  • Con icon Limited information available on website

Services Offered

  • Service icon Panel Installation
  • Service icon Solar Carports

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

EcoWatch Rating

3.0/5

Sunshine Plus Solar Corp - Solar Panel Company Long Island

  • Pros icon free_inspection
  • Pros icon price_transparency
  • Pros icon ed_content
  • Con icon Limited information available on website

Services Offered

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

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 price_transparency
  • Pros icon customer_service
  • Pros icon free_inspection
  • Pros icon ed_content
  • Con icon Limited information available on website

Services Offered

  • Service icon Consultation
  • Service icon Panel Installation

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

EcoWatch Rating

3.0/5

Long Island Solar Sales

  • Pros icon price_transparency
  • Pros icon charitable_giving
  • Pros icon ed_content
  • Pros icon customer_service
  • Pros icon free_inspection
  • 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
ecowatch badge icon

EcoWatch Rating

3.0/5

Renew USA Solar

  • Pros icon award_winning
  • Pros icon customer_service
  • Pros icon free_inspection
  • Pros icon price_transparency
  • Con icon Limited information available on website

Services Offered

  • Service icon Cleaning and Maintenance
  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Skilled Repairs

Website: https://renewusa.com/
Address: 360 Motor Pkwy Suite 1000, Hauppauge, NY 11788
Phone: 8337363987

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

We get that for many homeowners, the decision to invest in solar depends on installation costs.Some significant things that impact the upfront cost and potential savings over time include:

  • Whether or not your roof gets a lot of direct sunlight: This, along with your roof configuration, affects affect how much power your solar panels can generate.
  • Choice of solar panels: The type of solar panels you are interested in getting will affect your total cost. High-efficiency monocrystalline panels will cost more upfront but can also lead to more savings over the lifetime of your system. If you don’t need to maximize efficiency, you can opt for a higher number of more affordable panels.
  • Incentives: Something 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 on your energy bills, which can generate an average of $22,000 of savings over 20 years.
  • Your household's power bills: Based on the high monthly electric bills in East Islip, you could save about $1,500 a year with solar.

Even though a solar panel system costs a decent chunk of money upfront, it can save you a considerable amount in the long term. The question of how much, though, depends on several factors, like the angle of your roof and your current power bills.

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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. In addition, there may be some local incentives that can save you some extra money too. For comprehensive information about incentives that apply to you, see our article on solar incentives.

Environmental Impact of Switching to Solar in East Islip

Replacing nonrenewable energy with solar power is a good way to do what you can for a more environmentally-friendly future.Something many might be thinking about is how much can they really help the environment by going solar anyway? Something that can dramatically affect your carbon footprint is your commute time and how much you drive generally. If you install solar panels and have an electric car, you can greatly decrease your carbon dioxide emissions by charging your car at home.In East Islip, the average homeowner can reduce their carbon footprint by 100 pounds a year after going solar. As you can see, investing in solar has so many other benefits outside of saving money. One of the major ones is that you can help save the Earth too.

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

Best Social Impact

Palmetto Solar

★★★★★
4.0
  • Expansive service area
  • Makes charitable contributions
  • Certified B Corp
  • No leases or PPAs
  • Quality of installation may vary by location

EcoWatch's East Islip, NY Solar Company Rankings FAQs

Which solar panel installer is the best near me?

The best local solar company in East Islip is Kamtech Solar Solutions, with a rating of 4.80 stars.

Are solar panels really bad for the environment?

Manufacturing solar panels needs to use chemicals and produces toxic waste that can be dangerous for the environment, which is the main downside of solar panels.

How long does it take for solar to pay for itself?

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

When should I install 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 more expensive 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.