National Solar Rankings

Massachusetts Solar Company Rankings – 2026

Updated February 21, 2026

239Companies Evaluated
$22,800Avg. System Cost
Great Sky SolarTop-Rated Company

Top Ranked Solar Companies

84.1/ 100

Great Sky Solar

0BBB Complaints
14Years in Business
LexingtonLocation

Great Sky Solar has spent 14 years building a reputation in the greater Boston area as a solar installer that prioritizes precision over volume. Based in Lexington, they operate in one of the most competitive solar markets in the country, where high electricity rates and strong state incentives have attracted dozens of installers. What sets Great Sky apart is the caliber of their work and the consistency of their customer experience. Their perfect 5.0-star Google rating across 576 reviews is the standout metric in our Massachusetts evaluation. Maintaining a flawless average across that many customers requires more than good installations. It requires responsive communication, accurate production estimates, clean project management, and follow-through on warranty and maintenance requests. Based on the review data, Great Sky appears to deliver on all of these. The company is NABCEP certified and has developed deep familiarity with Massachusetts' SMART program, which provides ongoing kilowatt-hour-based compensation that can significantly improve the economics of a solar investment. Their team helps homeowners navigate the state's incentive landscape, including the state tax credit, sales tax exemption, and net metering rules, which can be confusing for first-time solar buyers. Great Sky Solar also brings practical knowledge of the housing stock common to eastern Massachusetts, where older Colonial and Cape Cod-style homes present unique challenges in terms of roof structure, shading from mature trees, and aesthetic considerations in historic districts. With a composite score of 84.1, Great Sky Solar is our top-ranked solar company in Massachusetts for 2026.

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Customer Reviews

Tony G.

“Outstanding Experience from Start to Finish - Highly Recommend! After evaluating several solar contractors in early 2025, we chose Great Sky Solar and couldn’t be happier with our decision. What set...”

thomas j.

“Great Sky is a very good company. We did some shopping around before deciding and learned that Great Sky was the most up-front and knowledgeable of anyone in the area. They answered our questions and...”

Daniel H.

“We had our 30 panel install during 2018, choosing Great Sky out of about 6 quotes, primarily based on competitive pricing, good equipment recommendations, and a very transparent and personal upfront...”

Jackie B.

“I can’t recommend Great Sky enough. Late summer of 2024 we had 41 solar panels installed on our roof. From planning, to the installation, everything went smoothly. They were easy to work with and...”

Deborah F.

“I had an excellent experience with Great Sky Solar! The team was great very professional, efficient and accommodating —including being willing to travel as I live in Western Mass. The smooth...”

Emma S.

“Loved working with Great Sky Solar. They gave us many options for panels and helped us choose the perfect system for our house. Installation was quick and easy and they dealt with the city paperwork...”

Sophie I.

“We had an excellent experience with Great Sky Solar. They installed our system in August 2025. From start to finish we felt we were in great hands. They were very clear about the design from the...”

Mike M.

“I did a lot of research on Solar Companies. One Solar Company was canvassing our neighborhood and came by our house to try to talk us into leasing panels from them. After further research, we found...”

79.94/ 100

Valley Solar

0BBB Complaints
11Years in Business
EasthamptonLocation

Valley Solar has established itself as the largest locally owned solar contractor in western Massachusetts since its founding in 2015. Operating from 116 Pleasant Street in Easthampton, the company serves Berkshire, Franklin, Hampshire, Hampden, and Worcester counties with a team that includes 10 licensed electricians holding over 30 solar certifications. In a region where solar adoption has accelerated sharply thanks to Massachusetts' aggressive renewable energy incentives, Valley Solar has positioned itself as the go-to local installer for homeowners who want to work with a company rooted in their own community. The company's credentials reflect a commitment to professional standards that goes beyond the minimum. Valley Solar holds NABCEP certification and operates as a licensed Massachusetts master electrical contractor, a combination that ensures their installations meet the highest technical benchmarks in the industry. Their service scope covers residential and commercial solar panel installation, battery storage systems, EV charger setups, and post-installation performance monitoring and maintenance. That last capability is worth noting because system monitoring often reveals production issues that homeowners would otherwise miss for months. Recognition from the local market has been consistent and emphatic. Valley Solar was voted Best Local Solar Installer by readers of the Daily Hampshire Gazette four consecutive years from 2020 through 2023, an award driven by popular vote rather than industry insiders. That kind of sustained community endorsement speaks to the company's reputation among the people who actually live with their installations day to day. With a 4.9-star Google rating across 202 verified reviews, Valley Solar maintains one of the strongest customer satisfaction profiles in the state. Reviewers consistently cite the company's thorough site assessments, clear communication about system economics, and clean installation work. For a company that has only been in operation for 11 years, the depth of their review base and the consistency of their ratings suggest a team that prioritizes doing the job right over scaling rapidly. With a composite score of 79.94 out of 100, Valley Solar holds the second-ranked position among solar installers in Massachusetts for 2026.

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Customer Reviews

Mark J.

“After doing research, Valley Solar clearly stood out as the best company around. We spoke with our local inspector, who specifically recommended Valley Solar, which gave us a lot of confidence in...”

Gunther R.

“We bought a house in Williamsburg in July 2025 and immediately started looking for solar providers to beat the end of the year deadline for tax incentives. We called a competitor of Valley Solar that...”

Ben K.

“My family offers Valley Solar an unreserved recommendation for any solar/battery storage system that you might want for your home or business. They will do quick, excellent, and reliable work that...”

Allison W.

“Valley Solar recently completed a full solar installation on our home — 34 panels plus two batteries — and we could not be more impressed with the entire experience. From the initial consultation...”

Elisabeth T.

“We had several companies approach us over the past few years, offering solar installation. As we researched and considered the process, we learned that many of our neighbors enlisted Valley Solar for...”

Kaylee Q.

“Great experience with Valley Solar! The process was easy and straightforward, and Martin was awesome to work with—super knowledgeable, friendly, and never pushy. He answered all our questions and...”

William C.

“We recently had a solar system installed by Valley Solar and I honestly can’t recommend them highly enough. From start to finish, the experience was outstanding — the team was professional,...”

Catherine L.

“I had a really great experience with Valley Solar. From the very first interaction, the representative was incredibly personable, friendly, and patient. There was absolutely zero pressure. Just...”

75.3/ 100

Freedom Forever

0BBB Complaints
15*Years in Business
WoburnLocation

Freedom Forever brings national-scale solar operations to the Massachusetts market through their Woburn office, one of dozens of locations the company operates across 36 states, Washington D.C., and Puerto Rico. Since its founding in 2011, Freedom Forever has installed over one gigawatt of solar capacity nationwide, a milestone that places them among the largest residential solar installers in the country. Their Massachusetts presence allows Bay State homeowners to access the resources and purchasing power of a major national firm while still receiving local installation service. The company's signature differentiator is its 25-year Production Guarantee, a warranty structure that goes beyond the standard equipment and workmanship coverage most installers offer. Under this program, Freedom Forever guarantees a specific level of energy production from the system they install, and if the system underperforms, the company compensates the homeowner. That kind of performance-based commitment is rare in the industry and addresses one of the most common anxieties prospective solar buyers have: will the system actually produce what the salesperson promised? Freedom Forever's Woburn operations serve the greater Boston area and surrounding communities across eastern Massachusetts. Their installation teams handle the full project scope from design and permitting through installation and interconnection. The company's scale allows them to maintain relationships with tier-one equipment manufacturers, which typically translates to competitive pricing on panels and inverters. Typical installations are completed in one to two days, depending on system complexity and weather. Customer feedback for Freedom Forever is mixed in a pattern common to large national solar companies. Their 4.4-star Google rating across 261 Massachusetts reviews is solid but not exceptional, with satisfied customers praising the quality of craftsmanship and the production guarantee, while a subset of reviewers report frustrations with post-installation communication and service responsiveness. The Woburn office's performance trends somewhat above the company's national average, suggesting that the local team delivers a more consistent experience than some of their counterparts in other markets. With a composite score of 75.3 out of 100, Freedom Forever earns the third-ranked position among solar installers in Massachusetts for 2026.

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Customer Reviews

Danielle M.

“DO NOT USE THIS COMPANY!!! No resolution to problem after problem after problem. I've spent hours of my life on hold and on the phone trying to have things resolved, but you know what I haven't...”

Andrea H.

“Had the Boston Tea Party crew install our solar panels today and they were professional, efficient, courteous and easy to work with. Explained everything before and after install and completed right...”

Amanda W.

“My partner Michael and I used them to install our Solar panels. Luan and his team did a wonderful job. They were fast, and respectful. Thanks again for a wonderful job.”

Jaspreet K.

“I deeply regret choosing Freedom Forever. Their own inspector confirmed that the leaks in my roof were caused by their installation. Since 9/15, I have received no direct contact or resolution, even...”

Michael H.

“I’ve had an incredibly frustrating experience with Freedom Forever. Their on-site installation teams were excellent — professional, efficient, and the system itself was installed cleanly and works...”

Thomas D.

“The entire experience was outstanding! Freedom Forever's Customer Facing Platform truly exceeded expectations. Their interactive timeline and well-structured process were incredibly impressive. As...”

Brian R.

“Horrendous communication every step of the way. They sent out someone to take measurements and completely disregarded them, changing our layout and making the roof penetrations without letting us...”

Scott M.

“Run don't walk from this company. They are great at taking your money, they do that on day 1. Over one year later I still do not have operational solar panels. The installation of the solar panels...”

All Solar Companies in Massachusetts

Showing 20 of 161 companies

Profile
Great Sky SolarLexington5.0View
Tri-State Construction CoWorcester5.0View
Mighty Dog Roofing of South ShoreSouth Easton5.0View
Solar RisingMashpee5.0View
Ecoloop Solar SolutionsDanvers5.0View
StormCare Roofing Inc.MA 023225.0View
GN Exteriors - Roofers in BraintreeBraintree5.0View
New England Solar + GreenWilliamstown5.0View
Northeast SolarHatfield5.0View
NeeecoMA 023015.0View
NEC SolarBristol5.0View
LGE Electric5.0View
EcowaveUSBeverly5.0View
Direct Energy Solutions Inc5.0View
Bright Home Solutions, Inc.Wilmington5.0View
Solarize NE5.0View
Éirí Group5.0View
Intelligent SolarLunenburg5.0View
Helios Solar EnergyMethuen5.0View
North Solar ScreenNorth Chelmsford5.0View

Massachusetts Solar Resources

Energy Laws & Incentives

State tax credit: 15% up to $1,000|Sales tax exemption on solar|Property tax exemption for solar value|SMART program (kWh-based payments)|Net metering at retail rate|SRECs available

Solar News

Useful Links & Blogs

*Companies displaying 15 or more years in business are typically established electrical, roofing, or general contracting firms that expanded into solar installation in more recent years. The years shown may reflect the age of the parent organization or a strategic partner, not necessarily the solar division itself. This distinction is worth considering when comparing to dedicated solar installers, as purpose-built solar companies may offer more specialized expertise despite a shorter operating history.