5 Best Solar Companies in Massachusetts (2025 Reviews)

In this guide to the best solar companies in Massachusetts, you’ll learn:

  • Which solar installers in Massachusetts are the most reliable and affordable?
  • How can you save money when converting to solar in Massachusetts?
  • What are the most important factors to consider when hiring a solar installation company in Massachusetts?

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EcoWatch Highlights

  • All Energy Solar is the company I would personally go solar with in Massachusetts. It has a solid reputation, high-quality equipment and lengthy warranty coverage that Massachusetts residents need.
  • Some companies will recommend solar batteries in addition to panels in Massachusetts. I’d stay away from them, as they cost a lot and add little value, thanks to the statewide net metering program.
  • Most of Massachusetts sees above-average rainfall and snowfall, so roof leak warranties and workmanship warranties are good things to prioritize in the state.

Massachusetts is home to nearly 200 solar installers, and while this means you’ll have plenty of options to choose from, it also makes your decision a challenging one. The best solar companies in Massachusetts will carry high-efficiency panels that can help maximize your chances of offsetting some of the highest electricity prices in the country, as well as strong warranty coverage to keep you protected from damages related to the above-average rainfall and snowfall in the state.

Check out this video from Momentum Solar about how solar can help save you money on your monthly electric bills:

All of the companies we recommend are meticulously vetted using a rating system that relies mostly on hard data. Aside from our own experiences with customer service departments, we solely compare companies based on their offerings, equipment options and add-on services. Our rankings are never influenced by company relationships or partnerships, so you can always rest assured you’re getting the best information possible.

I’ve also been researching and reviewing solar companies for over 4 years. During that time, I used my knowledge and experience to go solar in my own home. I was able to secure a system that leaves me with a $0 electric bill, will pay for itself in about 6 years and should net me more than $25,000 in lifetime savings. I’ll provide the same advice in this article that I’d follow myself if I were going solar in Massachusetts. The experience I have should help guide you to the best possible installer for your needs and expectations.


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Best Regional Coverage
4.5/5
Provides a mobile app for monitoringFlexible financing optionsIn-home consultations
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Best Social Impact
4.5/5
National coverageGreat warranty coverageMost efficient panels
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EcoWatch Reviews Methodology

The EcoWatch team uses a meticulously crafted methodology for rating and ranking solar installers. For each company we review, we use more than 20 criteria across 6 main scoring categories: standard services and financing, extra services, environmental impact and sustainability, equipment quality and reliability, company reputation and customer service. All of these categories are scored based on objective data, with the exception of the customer service section, which we base on our own subjective experiences and calls to each provider as secret shoppers.

I also use my experience as a solar researcher and writer to inform my opinions of each provider and detail what I think is most important for solar customers in your area. I’ll call on my own experiences as I went solar myself to help you get to the same outcome: a $0 electric bill each month and the promise of substantial long-term savings.

What are the Best Solar Companies in Massachusetts?

  • All Energy Solar: Best Local Installer
  • Momentum Solar: Best Customer Service
  • Trinity Solar: Best Customization Options
  • SunRun: Best Protection Against Damage
  • Palmetto Solar: Best for Lease Options

Compare The Top Solar Companies In Massachusetts

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All Energy Solar

Outstanding Regional Installer

Regional Service

EcoWatch rating

Average cost

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Pros

  • Full-service home energy solutions
  • Excellent reputation
  • NABCEP-certified technicians

Cons

  • Expensive
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Momentum Solar

Best Regional Coverage

Regional Service

EcoWatch rating

Average cost

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Pros

  • Great warranty coverage
  • Concierge service ensures steady communication
  • Representatives are experts on local policies

Cons

  • Slightly limited service offerings
  • Only available in 11 states
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Trinity Solar

Solar Veteran

Regional Service

EcoWatch rating

Average cost

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Pros

  • Many financing options
  • Family-owned and -operated
  • Makes charitable contributions

Cons

  • Limited service area
  • Relatively short workmanship warranty
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Sunrun

Best for Leasing

Regional Service

EcoWatch rating

Average cost

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Pros

  • Expansive service area
  • Many financing options

Cons

  • Some reported issues with customer service
  • Some reported issues with door-to-door sales
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Palmetto Solar

Best Social Impact

Regional Service

EcoWatch rating

Average cost

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Pros

  • Expansive service area
  • Comprehensive service offerings
  • Certified B Corp

Cons

  • No leases or PPAs
  • Quality of installation may vary by location

Calculate the Cost of Massachusetts Solar

Based on our research, the average cost to go solar in Massachusetts is around $24,180 before any incentives, based on the typical system size required — 6.5 kilowatts in Massachusetts — and the average local cost per watt of $3.72. After the ITC, that $24,180 total could come down to $16,926 if you can take the entire credit. Keep in mind that prices can vary widely based on the system size you need, shading on your property and more. You can get a more personalized estimate by using our solar calculator, which takes your home’s location and sun exposure into consideration. Just enter your address, enter your average monthly electric bill and answer a few questions about shading on your property, and you’ll have a more accurate estimate for your particular property.

Massachusetts Solar Regulations

The Solar Massachusetts Renewable Target (SMART) sets forth some basic regulations for what a solar installer must provide a customer to do business in the state. These requirements include a fully-executed contract (and a separate contract if the provider is using a third-party installer), proof that the customer qualifies for income solar incentives, if applicable, and a signed customer disclosure form developed by the state that informs the customer of their rights and includes information that can help guide expectations.

Tangentially related to solar is the Massachusetts mandate that will require all new light-duty vehicle registrations in the state to be for zero-emission vehicles after 2035. This is important to keep in mind because, if you’re going solar soon, you might want to consider installing an EV charger to prepare for the future change. Installing a charger alongside your system will make it eligible for the ITC and can effectively reduce the cost of the equipment by 30%.

Editor’s Note: While this article highlights certain regulations, it is vital for readers to do their own research, as the mentioned regulations are not exhaustive.

Massachusetts Solar News

Thousands of Massachusetts residents who installed rooftop solar panels before 2022 are being excluded from new compensation rules that took effect under a state law aimed at promoting clean energy. The law, passed in 2022, increased payments for excess electricity sent back to the grid—but it only applies to systems activated after the law was implemented, leaving earlier adopters without the financial boost.

Many solar customers say they were led to believe the incentives would be retroactive, and they’re now expressing frustration over what they see as an unfair exclusion. State officials argue the law was never intended to apply retroactively, while critics say it discourages early clean energy investments that helped pave the way for Massachusetts’ climate goals.

FAQs

Given the popularity of solar in Massachusetts, we get lots of questions about how to choose an installer in the area. Below, we’ll answer some of the most common questions we see from residents in your area.

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Comparing authorized solar partners

EcoWatch rating
Average cost
Pros
Cons
BBB Rating
Year founded
Service Area
Brands of Solar Equipment Offered
Warranty Coverage
  • 4.0
    • Full-service home energy solutions
    • Excellent reputation
    • NABCEP-certified technicians
    • Expensive
    A+
    Outstanding Regional Installer