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Great Sky Solar - Profile & Reviews

We at Great Sky Solar pride ourselves on complete and transparent consultation and installation of your home's solar project. We have been going above and beyond our customer's expectations for 8+ years to provide Massachusetts customers with the best custom solar solution for their homes and businesses.

104 reviews

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  • "Excellent experience!"

    Reviewed Jun 30, 2021

    GSS was great! They were very cognizant of preparing an estimate during COVID times and restrictions I had to have in place with my family. Installation crew was amazing and had to adapt on the fly to changes needed to panel layout and other unexpected issues that they solved “in the moment”. More than satisfied with the final install!

  • "These guys are great!"

    Reviewed Apr 19, 2021
    Updated Apr 19, 2021

    I did a couple of interviews and was quite overwhelmed before discovering EnergySage. Great Sky Solar was one of the installers recommended by EnergySage and I am very happy about my choice! They were very patient answering my questions during my research and unlike salespersons from some other installers I didn't feel any pressure from them at all. Their contract is clear and their price is one of the best. They are honest about the installation time frame and the difficulty scheduling an exact time during the winter months. When it finally comes to installation it took only about 6 hours from start to finish and it all went very smoothly. After the installation they continued to guide me about what to expect until it is finally running. It was a great experience and I highly recommend them!

  • "Top notch team"

    Reviewed Apr 15, 2021

    I would highly recommend Great Sky Solar due to their professionalism and follow up. They walked me through the whole process and made sure it was all up and running. They even handle all the paperwork and scheduling with the utilities. The team was on time, neat and installed the panels without all the exposed conduit I see on some units. Thank you Great Sky for an awesome experience.

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Great Sky Solar was founded on a vision of combining clean energy with a clean and transparent business model.

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.

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

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Get a custom solar estimate for your home

Get a custom solar estimate for your home

Based on your roof and actual offers in your area

Try Solar Calculator



Great Sky Solar Headquarters

29 Mill St
Arlington, Massachusetts
02476 United States

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, your roof is covered for any leakage, damage, or problems associated with the installation of the solar panel array.


Sustainable Business Network of Massachusetts (SBN), Climate Action Business Association (CABA), Solar Energy International (SEI)


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


Electrician, CSL, Home Improvement


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

States served by Great Sky Solar

  • Massachusetts MA