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Great Sky Solar

Boston Solar Companies
Ranked #1 in Boston | Grade A
5.00 (754 reviews)

Great Sky Solar

Great Sky Solar emphasizes a clear, respectful process from design through installation. The team communicates timelines, coordinates permits and utility steps, and sets realistic production expectations.

Why Homeowners Choose This Business

Clients highlight a no-pressure sales process, clear explanations of production and options, and well-organized scheduling. The team provides responsive answers, keeps customers informed at each step, and delivers installations that align with the proposed design and timeline.

Service Area

Greater Boston and surrounding Massachusetts communities, with projects reported across eastern and parts of western MA.


How This Business Compares

A quick local comparison based on ranking, review strength, and market visibility.
  • Holds a strong position among local competitors.
  • Performs at or above the local average for Google rating.
  • Has more Google review volume than many local competitors.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Establishment
  Point Of Interest
  Supplier
  Residential Solar Installation
  Commercial solar installation
  Installations
  Solar Panel Design
  Solar PV systems
  Battery storage integration
  Solar monitoring setup
  Utility interconnection support
  Rooftop solar
  Solar incentives guidance
  Solar Project Management
  Grid-tied solar
  Solar array assessment

Design and installation of grid-tied solar PV systems for residential and light commercial clients, including site assessment, custom array layout, equipment recommendations, permitting, utility interconnection support, monitoring setup, and optional battery storage integration.


Recent Reviews

5.00

(Based on 754 reviews)

Reviews consistently mention transparent proposals without high-pressure tactics and patient explanations of equipment, production, and incentives. Customers describe smooth coordination from contract through installation, with responsive communication from both sales and admin teams. Install crews are frequently noted for professionalism, respect for the home, and staying on schedule. Several reviewers also mention accurate production estimates and helpful post-install support.

Google Review
Frank Rigiero on Great Sky Solar

We had an exceptional experience working with Great Sky Solar from start to finish. The entire process from the initial consultation through installation was smooth, professional, and well organized.

The sales team took the time to explain the system, expected production, and all of our options without any pressure. There was no high pressure sales pitch or gimmicks.  Just straightforward information and honest answers. They answered every question we had and made sure we fully understood everything before moving forward.

One thing that really stood out was that, between the sales process and installation, they sent an installer to inspect our roof to make sure it was suitable for solar. That gave us real confidence that we didn’t need a roof replacement (it was only a few years old) before installing the system, which we appreciated because it showed they were focused on doing the job right rather than just making a sale.

They also handled all of the design work and paperwork from permitting to coordinating with the power company making the entire process incredibly easy for us.

The installation crew was equally impressive. They arrived on schedule, were courteous and professional, and completed the work efficiently while keeping everything neat and organized.

Communication throughout the entire process was excellent.  We always knew what the next step was and who to contact if we had questions. Overall, it was a great experience and we’re very happy we chose Great Sky Solar.

Google Review
Daniel Houdlette on Great Sky Solar

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 design process. Very good people to deal with. From initial down payment in March, things went very smoothly and we were up and running by August 1st.
We took all tax breaks in the 1st year and started collecting SRECs in 2019.
We received a refund check from Great Sky in 2019, as promised, because actual outputs did not fully meet predicted levels of 10MWh per year. However, the system has been running at 85-95% of that level so far, and would do better with fewer trees.
Based on combined returns from rebates, SRECs, and net-metered returns measured from utility bills, the system paid for itself after approximately 5-1/2 years (near the end of 2024).
It's been over 6 years of problem free operation and to say we've been satisfied is a serious understatement. We are looking forward to 14 more years of savings, with the idea of adding batteries at some point.
I've always recommended going solar to interested parties, and recommended Great Sky to those in their service area. The support relationship has been "Great"

Google Review
Deborah Ford on Great Sky Solar

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 installation of solar greatly reduced the cost of energy in my 100% electric house while giving me the satisfaction of using clean, renewable power. The admin/tech team has also been extremely supportive during the assessment and installation, and very helpful in the years since, patiently guiding me through regular upgrades and questions. I am happy to highly recommend Great Sky Solar to anyone, anywhere!

Google Review
thomas johnson on Great Sky Solar

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 explained the process and expectations clearly. Once we signed, they quickly moved through all the processes and kept everything on schedule. The installers were professional and respectful to our home. We were especially happy that their prediction for what we could receive toward our electric bill reduction was very close to reality. They didn’t oversell. I would recommend to anyone looking for a solar provider to contact Great Sky.

Google Review
Tony Gale on Great Sky Solar

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 them apart was their transparent approach and genuine expertise. Josh from their sales team was incredibly knowledgeable, responsive and collaborative as we worked through sizing our solar panels, placement options, and battery configuration. He took the time to answer all our questions about panels, battery storage, and monitoring without any high-pressure tactics. A major factor in our decision was that Great Sky Solar offers a solar generation guarantee through a third party—this showed real confidence in their system design and gave us additional peace of mind.

We ultimately went with 2x PowerWall 3 units and are thrilled with both the performance and the seamless Tesla app monitoring.

Rebecca was our project manager and an absolute rock star! She proactively reached out when an earlier installation date opened up, getting our system installed in July. She expertly managed all the complex coordination with the town and Eversource for permitting, interconnect/export agreements, REC credits, and rebates.

The onsite crew was exceptional—electricians Tony, Jesus, and Trung along with installers Silas, James, and Chris were all meticulous in their work, thoughtful about discussing different options for battery placement and conduit routing, and kept everything organized and clean throughout the installation.

What truly stands out about Great Sky Solar is that they use their own full-time installers rather than subcontractors, and you can see the difference in the quality and care. We’re excited about the continued value this system brings—lower electrical bills, increased home value, and the peace of mind during utility outages. This is a company built on integrity and craftsmanship, and I wholeheartedly recommend them to anyone considering solar!????????????????

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Frequently Asked Questions

They primarily design and install grid-tied solar PV systems for homes and small businesses. Projects often include roof-mounted arrays, with options for adding battery storage based on site needs.

Timelines vary by town permitting and utility approval, but reviews describe a well-organized process that keeps projects moving. Many customers report clear milestones and on-schedule installations once permitting is complete.

Yes, customers report that the team assists with utility interconnection and provides guidance on available incentives. They also set expectations about timelines and what documentation is required.

Battery options are available and discussed during system design. The team helps evaluate sizing, placement, and how storage can support backup needs and program participation when applicable.

Expect a detailed review of roof conditions, shading, and electrical capacity, followed by a clear proposal with production estimates and equipment options. Reviewers note a no-pressure conversation and straightforward answers to questions.
 Verified Listing

Opening Hours


  • Monday 8:00 AM – 6:00 PM
  • Tuesday 8:00 AM – 6:00 PM
  • Wednesday 8:00 AM – 6:00 PM
  • Thursday 8:00 AM – 6:00 PM
  • Friday 8:00 AM – 6:00 PM
  • Saturday Closed
  • Sunday Closed

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Business Details


Business Rating
5.00 (754 reviews) FeaturedPro Business
Address
3 Bow St Suite 3, Lexington, MA 02420
Phone
Business Type
service

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