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10 Best Solar Companies in East Islip, NY

More than 130 people have received a free quote in the last 60 days.

Last Updated: February 25, 2025

Rooftop solar energy is becoming increasingly popular for homeowners in East Islip. A rooftop solar array can help you add value to your property, decrease your carbon footprint, and provide a dependable source of power. Switching to solar energy can allow you to save money and shrink your carbon footprint, but you want to make sure you find a qualified installer. That’s why we’ve reviewed the options and assembled a guide to the most trustworthy solar Installers in East Islip. These top installers offer high-quality and reliable services.

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.
Top Pick
3.9/5
  • Great customer service
  • Good warranty options
  • Excellent industry reputation
Best Regional Solar Company
4.8/5
  • Offers mobile app for monitoring
  • Provides multiple financing options
  • In-home consultations

Top 10 Best Solar Companies in East Islip

Advertisement This site receives compensation from some of the companies featured in this listing, which may impact where and how products appear. When you click "Get Quote," you will be connected with partners who may contact you with information related to your inquiry. This listing doesn't feature all companies, products, or offers that may be available.

SUNation Energy

SUNation Energy Logo

Our Rating

User Rating

171 Remington Blvd, Ronkonkoma, NY 11779 (631) 750-9454 sunation.com

Prompt service delivery

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

Skilled repairs
Community solar projects
Financing assistance
Panel installation
Grid-tied solar system
Cleaning and maintenance
Battery storage
Permit assistance
Tesla powerwall
Consultation

Long Island Power Solutions

Long Island Power Solutions Logo

Our Rating

User Rating

2060 Ocean Ave, Ronkonkoma, NY 11779 (631) 348-0001 lipowersolutions.com

Informative resources

Clear pricing policy

Free quotes

Reliable customer support

Services Offered

Grid-tied solar system
Battery storage
Consultation
Financing assistance
Panel installation

Solar Mentor

Solar Mentor Logo

Our Rating

User Rating

16426 Metcalf Ave, Flushing, NY 11365 (718) 374-2629 solarmentor.com

Informative resources

Reliable customer support

Prompt service delivery

Free quotes

Clear pricing policy

Services Offered

Permit assistance
Cleaning and maintenance
Consultation
Panel installation
Financing assistance

Green Power Energy

Green Power Energy Logo

Our Rating

User Rating

42 Ozick Dr Suite 3, Durham, CT 06422 (866) 983-5793 greenpowerenergy.com

Clear pricing policy

Free quotes

Informative resources

Reliable customer support

Services Offered

Skilled repairs
Battery storage
Permit assistance
Panel installation
Financing assistance
Consultation

Empower Energy Solutions

Empower Energy Solutions Logo

Our Rating

User Rating

30 Old Kings Hwy S #1001, Darien, CT 06820 (475) 221-2353 empowerenergy.co

Informative resources

Free quotes

Clear pricing policy

Reliable customer support

Services Offered

Skilled repairs
Panel installation
Battery storage
Financing assistance
Consultation
Permit assistance

Solar X - Solar Maintenance Professionals

Solar X - Solar Maintenance Professionals Logo

Our Rating

User Rating

3455 NJ-66 Suite 3B, Neptune Township, NJ 07753 (732) 992-6323 solarxpros.com

Reliable customer support

Prompt service delivery

Informative resources

Clear pricing policy

Services Offered

System decommissioning
Panel installation
Skilled repairs
Cleaning and maintenance

Element Energy Systems (E2SYS)

Element Energy Systems (E2SYS) Logo

Our Rating

User Rating

7470 Sound Ave, Mattituck, NY 11952 (631) 779-7993 e2sys.com

Clear pricing policy

Reliable customer support

Free quotes

Informative resources

Services Offered

Cleaning and maintenance
Battery storage
Panel installation
Consultation
Solar carports

GreenLogic Energy

GreenLogic Energy Logo

Our Rating

User Rating

97 N Sea Rd #3, Southampton, NY 11968 (631) 771-5152 greenlogic.com

Free quotes

Clear pricing policy

Prompt service delivery

Reliable customer support

Informative resources

Services Offered

Battery storage
Consultation
Panel installation

PurePoint Energy

PurePoint Energy Logo

Our Rating

User Rating

22 S Smith St, Norwalk, CT 06855 (203) 642-4105 purepointenergy.com

Informative resources

Free quotes

Reliable customer support

Clear pricing policy

Services Offered

Solar carports
Panel installation
Battery storage
Consultation
Financing assistance

Rivertown Solar

Rivertown Solar Logo

Our Rating

User Rating

23 Main St, Irvington, NY 10533 (914) 231-6866 rivertownsolar.com

Free quotes

Clear pricing policy

Reliable customer support

Informative resources

Prompt service delivery

Services Offered

Community solar projects
Grid-tied solar system
Panel installation
Battery storage
Consultation
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on solar companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

How To Choose a Solar Company

Going solar can be a great way to save money on electricity costs and help the planet by reducing your carbon footprint using renewable energy. Here are some crucial factors to consider when determining whether a solar installer is trustworthy.

Check Licensing

Confirm that your solar installer is properly licensed. This help guarantee that the work is done correctly using the most up-to-date installation methods. New York state does not issue licenses to contractors, so you should check with your county or city government for its specific regulations and requirements.

Read Customer Reviews

Check review sites like Google Reviews, TrustPilot, and the Better Business Bureau (BBB) to see feedback from past customers on local solar companies. Detailed reviews can help you evaluate a company's dependability and customer service. Use caution with companies that have very few reviews or mostly negative ones.

Compare Multiple Quotes

To find a solar installer that fits your budget, get free, detailed quotes from at least three providers. The quotes should list all costs as well as all solar equipment included. Looking at several quotes helps you identify the option that best fits your budget.

Ask About the Warranty

Quality solar installations should include strong workmanship and performance warranties. A workmanship guarantee addresses any installation defects (such as poor alignment, poor wiring, or cracks in the panels), while a performance guarantee ensures a certain level of energy production. Strong warranties demonstrate a company's confidence in its work.

Evaluate Financing and Incentives

Solar energy can help lower your electric bills over time. When considering the total price and value of solar panels, make sure to consider these factors.

  • Research federal and state tax credits: A 26% federal tax credit on total solar system costs is available through 2032. Many states offer incentives, too. The credits can lead to substantial savings for solar buyers.
  • Look into utility rebates: Local utility companies may offer additional rebates to encourage homeowners to install solar panels. Check the requirements to qualify and the rebate values with your local power company to determine what you could save.
  • Compare system purchase options: Solar panels may be paid for upfront or financed through loans or leases. Check important financing details such as fees, annual percentage rate (APR), payment schedule, and ownership implications when financing your solar system.

Cost of Solar Installation in East Islip

Solar panel costs vary based on your system's capacity and the technology used. The typical East Islip solar array has a capacity of 3.9 kilowatts. Homeowners in the area can expect to pay around $3,650 per kilowatt; the average East Islip homeowners spends roughly $9,930 on a new solar system after accounting for federal tax breaks. (Some homeowners prefer to lease solar panels to reduce upfront costs.) A personalized quote from a local solar company will account for things like the capacity, panel type, and size of the planned system, and should include fees for permit fees, labor, and preliminary work.

East Islip Solar Incentives Guide

Incentive Type: PACE Financing

Website: nyserda.ny.gov

Incentive Amount:

Locally determined

Incentive Type: Personal Tax Credit

Website: tax.ny.gov

Incentive Amount:

25% for solar-electric (PV) and solar-thermal systems; for third-party owned systems this is in reference to the aggregate amount owed under the contract rather than the amount owed in any single year

Incentive Type: Corporate Tax Credit

Incentive Amount:

$0.01/gallon for each percent of biodiesel

Incentive Type: Loan Program

Website: ny-sun.ny.gov

Incentive Amount:

Residential Customers: $1,500 - $25,000

Small Business and Not-for-Profit Organizations:
Participation Loans: up to $100,000 (at low interest rate)
On-Bill Recovery loans: $50,000 at 2%

Incentive Type: Sales Tax Incentive

Incentive Amount:

100% exemption

Incentive Type: Sales Tax Incentive

Incentive Amount:

Upon local authorization, 100% exemption from local sales tax

Incentive Type: Sales Tax Incentive

Website: tax.ny.gov

Incentive Amount:

100% exemption from state sales tax

Incentive Type: Property Tax Incentive

Website: tax.ny.gov

Incentive Amount:

Upon local adoption, 20% - 100% of real property taxes owed; varies by year and certification level

Incentive Type: Property Tax Incentive

Website: tax.ny.gov

Incentive Amount:

100% of the value added to the residence by the improvements

Incentive Type: Property Tax Incentive

Website: tax.ny.gov

Incentive Amount:

100% exemption for 15 years (unless local jurisdiction has opted out)

Incentive Type: Rebate Program

Website: ny-sun.ny.gov

Incentive Amount:

Incentive rates step down over time as MW goals are met. Incentive rates as of 11/27/2019 are:

Residential:
Long Island Region: $0.00/W (MW blocks have been fully subscribed)
Con Edison Region: $0.30/W
Upstate Region: $0.35/W
Low-to-Moderate income customers: $0.80/W (up to 10 kW)

Small Commercial (Non-Residential):Long Island Region: $0.00/W (MW blocks have been fully subscribed)
Con Edison Region: $0.60/W
Up State Region: $0.45/W

Multifamily Affordable Housing Adder: additional $0.40/W (up to 50 kW)

Incentive Type: Rebate Program

Website: psegliny.com

Incentive Amount:

Appliances
Advanced Power Strips: $10 - $20
Air Purifier: $25 - $50
Clothes Dryer: $50 - $250
Clothes Washer: $50
Dehumidifier: $30
Dishwasher: $50
Exhaust Fan: $20 - $25
Electric Freezer: $30
Heat Pump Water Heater: $650
Pool Pumps: $150 - $350
Refrigerator: $50
Refrigerator Recycling: $50

Lighting
Instant Rebates Vary by Product
Bulk Light Purchases: Up to $2 - $3/unit

Cooling & Heating
Central Air Conditioning: $450
Smart Thermostat: $85
Ground Source Heat Pump: $2,000/ton

Incentive Type: Rebate Program

Website: nyserda.ny.gov

Incentive Amount:

Small Systems (< 10 cooling tons): $1,500/cooling ton
Large Systems (> 10 cooling tons): $1,200/cooling ton

Incentive Type: Loan Program

Website: nyserda.ny.gov

Incentive Type: Other Incentive

Website: greenbank.ny.gov

Incentive Type: Personal Tax Credit

Website: tax.ny.gov

Incentive Amount:

$0.01/gallon for each percent of biodiesel

Incentive Type: Personal Tax Credit

Website: ecowatch.com

Incentive Amount:

30% federal tax credit for systems placed in service after 12/31/2021 and before 01/01/2033. Good for: solar water heat, solar photovoltaics, biomass, geothermal heat pumps, wind (small), fuel cells using renewable fuels.

Frequently Asked Questions About Solar in East Islip, NY

A solar photovoltaic (PV) array can generate power to run any electric appliance or system in your home. More specifically, you can install a solar water heating system.

There are many benefits to home solar energy. You can raise your property values, save money, and qualify for tax benefits. With the right storage equipment, solar panels can also provide you with further energy independence and offer some protection from power outages.

Yes, it's possible to use home solar energy alongside conventional power sources. In many areas, solar panels are designed to supplement your existing energy sources, meaning that you can reap the savings and environmental benefits of solar energy without having to completely switch over.

Your installer can give you an estimate of what your energy bills will look like after you install solar panels. Generally, your energy bills will decrease significantly because you'll be using energy from the sun for free, instead of buying energy from the utility company. The average annual savings in East Islip amount to $895.

Your payback period is the time to achieve an ROI on your solar panels. It will vary based on their rated capacity, the rate your utility charges per kilowatt of power, and the average sunlight in your area. East Islip gets quite a bit of sunlight per day, so an average payback period could last up to 11.1 years per 5 kW of capacity.

Net metering is a power purchasing policy that allows solar energy system owners to receive compensation for the amount of energy they put back into the grid. It's available in most states and is a great way to reduce energy costs.

Solar panels are gaining traction for their high efficiency and low maintenance costs. Depending on how much sunlight your property receives, you may find they're the best performing source of renewable energy compared to others.

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