15 Best Solar Companies in Littleton, MA (2025 Reviews)

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

  • Customer review scores
  • Service area for Littleton, MA
  • Company policies and services offered
  • Accreditations and certifications

Average Littleton homeowner saves $1,760/year with solar panels

By EcoWatch Local Advisors

Data Analysis: James Savino

Updated January 24, 2025

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 Littleton

Hoping to obtain energy freedom in Littleton? Installing solar panels can be a rewarding project since you can take advantage of many perks after adopting solar power. Because solar panels produce their own energy, they can greatly bring down your electricity bill each month, if not fully eliminate it. In fact, you could look forward to about $21,000 of savings over 20 years.


In this article, we’ll list out the top Littleton solar installers so you can make the best decision for your home’s clean energy needs.To get free quotes from the top-rated solar companies in Littleton, click the "get quote" button below.

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EcoWatch Rankings for Solar Companies in Littleton

Best Local Installer
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EcoWatch Rating

5.0/5

Helios Solar Energy

  • Pros icon Prompt Service Delivery
  • 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 Permit Assistance
  • Service icon Consultation
  • Service icon Financing Assistance
  • Service icon Panel Installation

Website: http://www.hssolarpower.com/
Address: 225 Broadway Suite 910, Methuen, MA 01844
Phone: 9783811815
Outstanding Local Installer
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EcoWatch Rating

5.0/5

ReVision Energy

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

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Cleaning and Maintenance
  • Service icon Community Solar Projects
  • Service icon Financing Assistance
  • Service icon Consultation

Website: https://www.revisionenergy.com/
Address: 1980 Turnpike St Ste 2, North Andover, MA 01845
Phone: 9783089041
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Brightway Energy

  • Con icon Limited information available on website

Services Offered

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

Website: https://brightwayenergy.com/
Address: 165 Middlesex Ave, Somerville, MA 02145
Phone: 6179066655
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Sunergy Solutions, LLC

  • 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 Panel Installation

Website: https://sunergysolutionsllc.com/
Address: 75 Gilcreast Rd STE 210, Londonderry, NH 03053
Phone: 8444276527
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Sunup Solar

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

Services Offered

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

Website: http://www.sunupsolarnh.com/
Address: Dollard Rd, Auburn, NH 03032
Phone: 6038602509
Outstanding Local Installer
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EcoWatch Rating

5.0/5

DO IT RIGHT SOLAR

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

Services Offered

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

Website: https://www.doitrightsolarllc.com/
Address: 150 Cornell St, Cranston, RI 02920
Phone: 4134045967
Outstanding Local Installer
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EcoWatch Rating

5.0/5

NEC Solar

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

Services Offered

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

Website: http://www.massgoessolar.com/
Address: 121 Broadcommon Rd, Bristol, RI 02809
Phone: 8664464632
Outstanding Local Installer
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EcoWatch Rating

5.0/5

Northeast Solar

  • Pros icon Free Quotes
  • Pros icon Prompt Service Delivery
  • 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 Panel Installation
  • Service icon Solar Carports
  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Cleaning and Maintenance
  • Service icon Consultation
  • Service icon Permit Assistance

Website: https://northeast-solar.com/
Address: 136 Elm St, Hatfield, MA 01038
Phone: 4132476045
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Critical Mass 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 Panel Installation
  • Service icon Financing Assistance

Website: https://www.criticalmasssolar.com/
Address: 33 Leighton St, Pepperell, MA 01463
Phone: 9782721486
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Future Energy Solar

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

Services Offered

  • Service icon Financing Assistance
  • Service icon Panel Installation
  • Service icon Permit Assistance

Website: http://futureenergysolar.com/
Address: 21 Olympia Ave unit v, Woburn, MA 01801
Phone: 7819607005
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Great Sky Solar

  • Pros icon Informative Resources
  • Pros icon Clear Pricing Policy
  • 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://greatskysolar.com/
Address: 29 Mill St, Arlington, MA 02476
Phone: 8889660726
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Granite State Solar

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

Website: https://www.granitestatesolar.com/
Address: 57 Ryan Rd, Bow, NH 03304
Phone: 6033694318
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Evergreen Solar | RI & MA Solar Panel Company

  • 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 Permit Assistance
  • Service icon Panel Installation

Website: http://goevergreen.solar/
Address: 163 Exchange St STE 201, Pawtucket, RI 02860
Phone: 5085072840
Outstanding Local Installer
ecowatch badge icon

EcoWatch Rating

4.9/5

Sundial Solar

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

Services Offered

  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Consultation
  • Service icon Permit Assistance
  • Service icon Tesla Powerwall
  • Service icon Financing Assistance

Website: http://sundialsolarnh.com/
Address: 7 Pleasant St Ext, Concord, NH 03301
Phone: 6039610045
Outstanding Local Installer
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EcoWatch Rating

4.9/5

Sunwatt Solar

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

Services Offered

  • Service icon Consultation
  • Service icon Cleaning and Maintenance
  • Service icon Financing Assistance
  • Service icon Battery Storage
  • Service icon Panel Installation
  • Service icon Permit Assistance

Website: https://sunwatt.us/
Address: 1005 Main St #2129, Pawtucket, RI 02860
Phone: 8447869288

Methodology: How We Ranked the Best Solar Companies in Littleton

EcoWatch's solar experts analyzed each solar company in Littleton 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 Littleton


Below are some the criteria we examined specifically for Massachusetts 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 Littleton

For most homeowners, whether or not to invest in solar energy comes down to the cost.A few key factors that influence how much it will cost to install solar panels on your home and how much money you could save over time include:

  • Incentives: The federal solar investment tax credit, which can save you some money, lets you deduct 0 of the cost of installing your solar panel system from your taxes. Plus, not including incentives, you can save about $21,000 over 20 years on your energy bills.
  • How much energy your household consumes: Households that use a lot of electricity each month may require more solar panels and, consequently, be more expensive, but will also save more on their energy bills over time.
  • Your income and budget: This shapes what type of solar panels you can purchase.
  • Your current power bills: Solar panels can noticeably decrease, or completely eradicate, your utility bills. In Littleton, you can save an average of $1,723 a month.

Though a solar panel system costs a sizable chunk of money upfront, it can save you much more over time. The question of how much, though, depends on several factors, including the size of your solar panel system and your current power bills.

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Solar Incentives in Littleton

One of the benefits of installing a solar panel system is earning incentives from the government.There are a lot of federal, state and local rebates and tax credits that may earn you a decent amount of money in return after buying a solar panel system. 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 Littleton

There are many reasons to make the switch to solar power, like saving on utility bills and helping to reduce your carbon footprint.Something many homeowners might be asking themselves is how much can they really help save the environment by going solar anyway? In a city like Littleton where energy use is somewhat high, switching to solar energy is a fantastic idea for homeowners who want to do their part for the environment.Once you go solar, your carbon dioxide emissions can be lowered by about 40 pounds every year. As you can see, trading traditional energy for solar has so many other rewards outside of saving money. One of the major ones is that you can help save the Earth too.

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EcoWatch's Littleton, MA Solar Company Rankings FAQs

Which solar power company is the best near me?

The top local solar company in Littleton is Helios Solar Energy, with a rating of 5.00 stars.

What are some of the major pros and cons of adopting solar power?

A few of the biggest pros are that it decreases your power bills, it’s eco-friendly, and it can give you a decent return on your investment (ROI). The most notable cons are that solar panels don’t produce electricity at night, they cost a lot upfront and solar panels aren’t always aesthetically pleasing.

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

The average payback period for solar panel installation is about 12.9 years, but the exact period varies depending on local electricity costs, incentives and net metering programs.

What is the efficiency of solar panels?

Solar panel efficiency is the amount of energy from the sun that is converted into electricity. Most panels today have an efficiency rating between 15 and 20%. If your panels are more efficient, you'll need fewer of them for your home's energy needs.

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.