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The 10 Best Solar Installers in Boston (2026)
This list ranks Boston-area solar installers using Google review data and a Bayesian weighting that favors both high ratings and review volume, updated for 2026. We pulled Google categories and scores to highlight local solar energy companies serving the city and its suburbs. In Greater Boston, buyers balance older roofs, multiunit buildings, and municipal permitting alongside state and local incentives, so reputation and experience visible in reviews can be a useful signal. Use this ranking as a starting point to compare providers and to narrow your list for quotes and site assessments.
This ranking is computed from Google reviews (our method). Listings marked Partner are paid advertising spots: they sit alongside the ranking without changing its order.
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Great Sky Solar
Great Sky Solar tops the list with a perfect 5.0 Google rating backed by 780 reviews, a volume that gives the company strong standing in our weighted score. Its Google listing identifies it as a Solar energy company located in Lexington, and the combination of a flawless rating and substantial review count is why it ranks first. High review volume helps reduce the chance that a top score is based on only a few opinions.
The full ranking
Clean Solar Energy – Massachusetts
Clean Solar Energy – Massachusetts appears with a 5.0 rating based on 55 reviews and is categorized as a Solar energy company in Saugus.
55 reviews
Ecoloop Solar Solutions
Ecoloop Solar Solutions has a 4.9 Google rating from 131 reviews, listed as a Solar energy company, with an address in Danvers.
131 reviews
Future Energy Solar
Future Energy Solar is rated 4.9 across 119 reviews and shows up under the Solar energy company category, located in Woburn.
119 reviews
Brightstar Solar
Brightstar Solar carries a 4.9 score from 103 Google reviews and is identified as a Solar energy company in Marlborough.
103 reviews
EnergySage
EnergySage has a 4.8 rating with 1,033 reviews on Google and is listed as a Solar energy company with an address in Boston.
1033 reviews
Brightway Energy
Brightway Energy appears with a 4.9 rating from 40 reviews and is categorized as a Solar energy company in Somerville.
40 reviews
Solstice
Solstice shows a 4.8 Google rating based on 74 reviews and is listed as a Solar energy company; its address is in the Cambridge area.
74 reviews
Everest Solar
Everest Solar carries a 5.0 rating from 16 reviews and is listed in the Solar energy company category, located in Woburn’s Unicorn Park area.
16 reviews
Boston Solar
Boston Solar has a 4.7 Google rating with 1,360 reviews and is categorized as a Solar energy company; the listing gives a Woburn address.
1360 reviews
Frequently asked questions
How should I choose a solar installer in Boston?
Start by comparing multiple installers’ reviews, credentials, and portfolio of local installations. Verify state certifications, ask for references, and make sure the company is familiar with Boston-area permitting and utility interconnection processes.
What does it typically cost to install solar in the Boston area?
Costs vary by system size, roof condition, equipment choices, and whether any structural work is needed. Get detailed written quotes from several installers that break down equipment, labor, incentives, and estimated energy production.
What should I check before hiring a solar company?
Confirm licensing and insurance, review recent customer feedback, and request a clear contract with timelines, warranties, and performance expectations. Ask how the installer handles permits, inspections, and utility interconnection so you know who manages each step.
How was this ranking created and why use Google reviews?
We ranked companies using Google ratings combined with a Bayesian weighting that balances average score and number of reviews to avoid overvaluing very small samples. Reviews are one signal among many—use them with direct references, credentials, and on-site assessments when choosing a provider.