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

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

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

Average West 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 West Islip

On the hunt for the best solar companies in West Islip? Installing a solar panel system is an exciting venture that many homeowners find beneficial for their wallets, communities and the planet. After 20 years of offsetting your energy costs with solar panels, you can save about $22,000 on your utility bills.


Here, we’ll make a list of some of the top solar companies in West Islip to make your decision a bit easier.To get free quotes from the best solar companies in West Islip, click the "get quote" button 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 West Islip

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.0/5

SunPower Corporation

  • 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 Residential Panels
  • Service icon Consultation
  • Service icon Financing Assistance
  • 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 Reliable Customer Support
  • Pros icon Clear Pricing Policy
  • Pros icon Free Quotes
  • Pros icon Informative Resources
  • Con icon Limited information available on website

Services Offered

  • Service icon Commercial Panels
  • Service icon Residential Panels
  • Service icon Permit Assistance

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

3.0/5

Sunrun Solar

  • 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 Battery Storage
  • Service icon Residential Panels

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

5.0/5

Marcor Solar

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

Services Offered

  • Service icon Residential Panels
  • Service icon Skilled Repairs
  • Service icon Financing Assistance
  • Service icon Maintenance

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

4.8/5

Hytech Home

  • Pros icon Prompt Service Delivery
  • 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 Maintenance
  • Service icon Residential Panels
  • Service icon Consultation
  • Service icon Skilled Repairs
  • Service icon Commercial Panels
  • Service icon Solar Panel Upgrades

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 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 Financing Assistance
  • Service icon Permit Assistance
  • Service icon Commercial Panels
  • Service icon Tesla Powerwall
  • Service icon Skilled Repairs
  • Service icon Consultation
  • Service icon Residential Panels
  • Service icon Maintenance
  • Service icon Battery Storage
  • Service icon Community Solar Projects

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

Leviathan Solar

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

Services Offered

  • Service icon Residential Panels

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

Services Offered

  • Service icon Commercial Panels
  • Service icon Financing Assistance
  • Service icon Consultation
  • Service icon Residential Panels
  • Service icon Battery Storage

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

5.0/5

Harmony Energy

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

Services Offered

  • Service icon Consultation
  • Service icon Residential Panels

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

4.9/5

NYS Essential Power

  • Pros icon Prompt Service Delivery
  • 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 Residential Panels
  • Service icon Consultation
  • Service icon Battery Storage
  • Service icon Commercial Panels

Website: https://www.nysessentialpower.com/
Address: 13 Trade Zone Dr, Ronkonkoma, NY 11779
Phone: 6314002680
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

3 Sons Solar Energy Solutions

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

Services Offered

  • Service icon Maintenance
  • Service icon Financing Assistance
  • Service icon Residential Panels

Website: http://www.3sonsenergy.com/
Address: 100 Smith St, Farmingdale, NY 11735
Phone: 5165865085
Outstanding Local Installer
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EcoWatch Rating

4.4/5

ATTYX New York

  • 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 Commercial Panels
  • Service icon Maintenance
  • Service icon Residential Panels
  • Service icon Consultation

Website: https://www.attyx.com/
Address: 150 Eileen Way Suite 5, Syosset, NY 11791
Phone: 2123900838
Outstanding Local Installer
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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 Commercial Panels
  • Service icon Maintenance
  • Service icon Residential Panels

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

3.0/5

Copiague Commercial Solar Clean Energy Systems

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

Services Offered

  • Service icon Commercial Panels
  • Service icon Maintenance
  • Service icon Battery Storage
  • Service icon Financing Assistance
  • Service icon Residential Panels

Website: http://copiaguesolarcleanenergysystems.com/
Address: 985 Howard Ave, Copiague, NY 11726
Phone: 6318101126
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

3.0/5

Surf Clean Energy

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

Services Offered

  • Service icon Residential Panels
  • Service icon Consultation

Website: https://surfcleanenergy.com/
Address: 111 Smithtown Bypass, Hauppauge, NY 11788
Phone: 8666317873

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

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

Solar panels are powered by a free energy source — the sun — but to take advantage of this you will first need to pay to install your system.The installation cost is just one important factor you should consider when looking into installing solar panels. How much it'll cost and how much you can save depend on things including:

  • System size and type: Some models are more expensive than others, so the one you want can raise or lower your initial investment. Plus, the more solar panels you need to buy, the more it'll cost.
  • Incentives: Along with the federal Solar Investment Tax Credit (ITC), which lets you receive a tax credit curretnly worth 0 of your total installation cost, your local government may offer additional tax exemptions, credits or rebates that will help you save even more. Excluding incentives, you can save an average of $22,000 over 20 years with your solar panels, too.
  • Average daily sunlight: Since West Islip gets a decent amount of average daily sunlight, your solar panels can generally generate enough energy to power your whole home, which influences how much your electricity bills will be.
  • Your current power bills: Solar panels can greatly reduce, or entirely get rid of, your utility bills. In West Islip, you can save an average of $1,525 a month.

So is a solar panel system worth it? Whether you want to reduce your electric bills, carbon emissions or both, solar panels are a solid investment for many West Islip homeowners.

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Solar Incentives in West Islip

Although solar power is typically a big investment, it can save you much money over the lifespan of your solar panels due to lower utility bills and government incentives.When you install solar panels, you become eligible to claim the federal tax credit, or ITC. This credit currently reduces your tax bill by 0 of the cost of your solar panels. In addition, there are often some state and city incentives that you can benefit from to further cut back on the cost of solar of solar panels. For more information about incentives for homeowners in West Islip, see our article on solar incentives.

Environmental Impact of Switching to Solar in West Islip

A lot of people want to do what they can to help save the planet, which in many cases is the chief motivation to install solar panels.Many homeowners might be wondering how much exactly they can impact the environment by switching to solar in West Islip, though. For homeowners and business owners who care about the environment, going solar is an easy choice, especially since West Islip produces a very high amount of carbon dioxide emissions from its energy generation.In fact, if you make the switch to solar power, you could look forward to lowering your carbon dioxide emissions by about 100 pounds each year. The benefits of solar power are infinite — just like solar power is! That's why so many West Islip residents have been happy with committing to solar.

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 West Islip, NY Solar Company Rankings FAQs

Which solar panel installer is the best in West Islip?

The best local solar company in West Islip is SunPower Corporation, with a rating of 4.00 stars.

Are solar panels really environmentally friendly?

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

Are solar panels worth it?

Solar panels can be a beneficial investment for a majority of homeowners, but frankly, they might not be worth it for everyone. If your home doesn't get enough sunlight or your electricity bills are already fairly low, solar panels might not be for you.

When should I put up solar panels?

Although summer is the most common time people install solar panels, the optimal time is actually winter. You can save money since there's decreased 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.