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

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

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

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

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated April 21, 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 Islip Terrace

Searching for the best solar companies in Islip Terrace? Installing solar panels is an exciting project that many homeowners find rewarding for their wallets, communities and the planet. Over 20 years of offsetting your energy costs with solar panels, you can save about $22,000 on your power bills.


To help you comb through the large amount of Islip Terrace solar installers, we’ve narrowed down a list of the top ones.To get an idea of how much you might have to pay to install a solar panel system on your roof, you can get a free quote from one of the top solar companies in Islip Terrace by clicking 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 Islip Terrace

Best Local Installer
ecowatch badge icon

EcoWatch Rating

4.0/5

SunPower

  • 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 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

3.0/5

SunPower Master Dealer SOLAR

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

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

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

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

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

Services Offered

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

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

5.0/5

Marcor Solar

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Skilled Repairs
  • 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

4.8/5

Hytech Home

  • Pros icon Prompt Service Delivery
  • 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 Cleaning and Maintenance
  • Service icon Skilled Repairs
  • Service icon Consultation
  • 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

4.7/5

SUNation Energy

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

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 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 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

Bohemia Commercial Solar Clean Energy Solutions

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

Services Offered

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

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 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 Battery Storage
  • Service icon Panel Installation

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 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 Financing Assistance

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 Islip Terrace

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


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 Islip Terrace

Even though solar panels can save you money on power bills over time, it’s necessary to know the upfront costs.There are several factors you should take into consideration when trying to figure out costs and your potential savings, such as:

  • The type of solar panels you can buy: This hinges on how much you’re willing to spend upfront.
  • Average daily sunlight: Since Islip Terrace 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.
  • Incentives: The federal solar investment tax credit currently allows you to lower your taxes by 0 of the project cost. Your state and city may also have various incentives that you can take advantage of. Additionally, you can save about $22,000 over 20 years on your utility bills, before factoring in incentives.
  • The cost of energy for you: If your local power rates are high, there's a good chance you'll see a higher return on your investment in a solar panel system. In Islip Terrace, you can save an average of $1,525 a month on your electricity bills.

Due to solar panels decreasing in cost as well as several solar incentives, they are a worthwhile investment for the majority of homeowners.

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Solar Incentives in Islip Terrace

Because solar power is more sustainable than fossil fuels, there are several government incentives available to encourage people to make the switch.On top of the federal solar investment tax credit, there are also some state- and city-level benefits, which in most cases, can be claimed in addition to the federal incentive, so you get to save even more. You can find out about the incentives you can take advantage of in our article on solar incentives

Environmental Impact of Switching to Solar in Islip Terrace

Many want to do their part to help save the planet, which in many cases is the main motivation to install a solar system.But how much can installing solar panels actually help the environment? In Islip Terrace, where the energy generation produces a lot of greenhouse gasses, going solar can have a significant effect on the planet since solar power has a lower carbon footprint.Though making solar panels emits carbon dioxide, the panels make up for it by considerably reducing the amount of CO2 you would have been responsible for if you still used nonrenewable energy. In Islip Terrace, you can reduce your carbon footprint by 100 pounds a year with solar panels. Since solar energy is abundant and makes electricity without free from carbon dioxide emissions, making the switch to solar power is one easy step you can take to help the planet.

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 Islip Terrace, NY Solar Company Rankings FAQs

Which solar company is the best near me?

In Islip Terrace, SunPower is the best local solar company. Our team of experts rates it 4.00 stars, so it's a solid choice if you're looking to install solar panels on your roof.

What is the negative environmental impact of solar panels?

Solar panels can be bad for the environment when manufacturers use toxic chemicals when they’re made. Chemicals can make solar panels difficult to dispose of safely once they’ve reached the end of their lifespan. Solar panel manufacturing needs 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 installing solar panels?

The average payback period for solar panel installation is about 11.1 years, but the exact period depends on local electricity costs, incentives and net metering programs.

What is the best kind of solar panel?

There are three main types of solar panels: monocrystalline, polycrystalline and thin-film. In regard to efficiency and price, monocrystalline has the highest for both, then polycrystalline, and then thin-film. The best choice for you is highly influenced by the layout of your roof, how much you're willing to spend and desired energy output.

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.