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Great Sky Solar

We are small by design, connected to our community, and hire the best people. We never subcontract any portion of our work, and all of our employees enjoy strong salaries and a healthy work/life balance. On these principles, we've been able to build a truly sustainable company so we can offer you unparalleled service and expert craftsmanship.
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Great Sky Solar was founded on a vision of combining clean energy with a clean and transparent business model. We’ve created a workplace built on mutual respect and dignity, a healthy work/life balance including 4 day workweeks, excellent benefits, and a strong salary for every employee. The result? A far superior experience for our clients. We have been going above and beyond our customer's expectations for 10+ years to provide Massachusetts customers with the best custom solar solution for their homes and businesses.
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Reasons Why You Should Work With Us
  1. You won’t find another solar company as invested in the customer experience as we are. We aim to serve as an educational partner as well as an investment partner, and will give honest advice as we walk you through our process.

  2. If you’re looking for a company who prioritizes the appearance of your beautiful home as much as you do, you’ve found your solar partner in Great Sky Solar. With our dedicated team of salaried employees, we’re able to exceed all expectations.

  3. Our dedication to the industry trends and experience gives us the ability to reliably install systems and materials that are a cut above the rest, and we consistently hear from our customers that their experience was “above and beyond”.

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Elite+ installers are the most experienced, chosen, and celebrated companies on the Marketplace, having provided exceptional service to a high volume of shoppers for at least a year.

Turn-key custom solar solutions, solar panel installation, permit procurement, project management, educational services

Services Offered

  • Installation
  • Financing
  • Energy Auditing
  • Roofing
  • Electrical Contracting
  • Solar Repair & Maintenance
  • Community Solar

Great Sky Solar has 30 amazing people on our full-time staff. You’ll find a team of hardworking, dedicated, and friendly people focused on supporting you no matter where you’re at in your process with solar.

Workmanship Warranty

Peace of mind is important. We at Great Sky Solar want to exceed your expectations and, as such, go above and beyond to ensure our solar power systems work smoothly. In the unlikely instance that problems arise with your array, we offer a full warranty on all of our installation work. This includes any parts and labor associated with repairing or replacing your system. Additionally, our work is warrantied for any damage or problems associated with the installation of the solar panel array.


Electrician, CSL, Home Improvement


We're a fully insured company, including full liability insurance for any damages or repairs to your property.


North American Board of Certified Energy Practitioners (NABCEP), Solar Energy International (SEI), REC ProTrust Certified Installer

Industry Certifications

  • The American Solar Energy Society
  • Better Business Bureau
  • North American Board of Certified Energy Practitioners
  • Solar Energy Industries Association
  • Solarize Massachusetts
  • SunPower Authorized Dealer
  • Tesla Powerwall Certified

Manufacturer Certifications

  • Certified Installer
  • Certified Solar Professional
  • Gold Installer
  • PWRpartner

What Customers Are Saying

117 reviews
Average Rating 117 review(s)
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It will take time for me to decide on whether to go solar now. But I appreciate you taking time and providing detailed estimate and answering all my questions. Everything was highly professional and straight forward. Thank you,

Posted by cyrilc on Apr 08, 2023
Great experience

They did a great job of not over selling. But being honest in risks and benefits. The had an easy to follow process with regular updates. Couldn’t have been happier with the whole process

Posted by mordinoj on Feb 26, 2023
Professionalism Counts

I wanted to maximize the efficiency of the footprint of my roof for solar panels. EnergySage was the best resource I had for gathering quotes and getting info. From there the one installer that clearly beat out the others in terms of preparedness and professionalism was Great Sky. In the process of installing solar panels a great deal of many interconnected decisions need to be made. Great Sky was patient and explained things in terms that allowed me to make those decisions with a high degree of confidence that I was informed and supported. They not only designed a difficult three pitched roof layout (including a flat roof) that maximized my solar output they also worked on making the aesthetics and minimizing the routing of the exterior conduit to preserve the architecture of the house. Highly recommend them for all your solar needs Conrad

Posted by conradmaher on Feb 06, 2023
These folks should be at the top of your solar installation list.

I can recommend Great Sky Solar very enthusiastically. From the very beginning, when we were meeting with other solar companies, Great Sky was a stand out. The engineer who met with us first, was not a salesman, but a glorious solar energy nerd, bless his heart. He talked about how a solar system would work for us, and had extensive knowledge about different forms of solar power that were in the the future pipeline. Rather than acting like a high pressure sales rep, he felt more like an interesting friend we had invited over. They then came to take measurements, and generated a plan to provide all the energy our house would need. (After five years of generation, we have an average of about 2% over our total use.) When the crew arrived to do the install, we were again totally wowed. All four technicians worked like a well oiled machine. They worked in very cold weather, and showed up every day working until the project was complete. (I think it was two and a half days including the inspection for which they were on site.) We have a small roof, and some other companies would not even bother to contact us - including one in our own town. We've contacted GS a few times to ask questions, and they've been responsive and polite. If all contractors as wonderful to deal with as Great Solar, life would be a lot more pleasant. Oh, and by the way, they were the lowest bid we received. Run - don't walk!

Posted by artistichen on Feb 04, 2023
They did what they said they would do

I contacted Great Sky Solar for our small residential project because of their reputation and quote on EnergySage. Their sales analyst spent over an hour reviewing their project proposal with me. I had plenty of questions after researching the technical details on my own, and he patiently answered them or got back to me if he didn't know the answer right away. He wasn't pushy at all while I took time to compare quotes from other companies. After I signed the contract and provided all the requested information, there was a period of about seven weeks where seemingly no progress was made (permit applications had not yet been submitted at this point). My interpretation is that they were very busy and had a large backlog of work to get through before starting engineering on my project. This led to the timeline (given as an appendix in our contract) getting pushed back by about two months. Once everything was back on track, it went very smoothly. Installation took place over two days. The installers were attentive to detail and took pride in their work, handling a challenging situation with an uneven and steeply pitched roof. Ultimately, it took almost five months from contract signature and permission to operate. I would say Great Sky Solar stands out as an honest and ethical company in an industry that is full of the opposite. The long delay, likely caused by their volume of business, is the only thing keeping me from awarding five stars.

Posted by the_one_smiley on Feb 01, 2023
Love my solar!

Great Sky installed my solar panels in 2020. They were very professional and did a wonderful job installing my solar. I've been very happy with their ongoing service and VERY happy with my electric bills and the check National Grid gives me every month for overproduction. Their customer service is amazing. Highly recommend Great Sky!

Posted by kadown58 on Dec 09, 2022
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