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WHAT WE DO

Solar panels are a long-term investment, and we design every system to maximize your return for decades to come. Going solar means two things: energy independence and financial security. Our systems reduce or eliminate your reliance on the grid, while putting money back in your pocket instead of your utility's.

New England Solar + Green has installed solar systems in Williamstown for nearly 20 years. That track record comes from deep technical expertise and just as importantly, from listening closely to what each customer actually needs. Whether you're building new construction or retrofitting an existing home, we design around your specific roof, budget, and energy goals

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OUR SERVICES

Over 100+ Five Star Reviews!

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Extremely satisfied overall! I decided to go full solar late Sept 2025 and wasn't sure I was going to be able to get it installed before the federal tax credits went away at the end of the year. I looked into a bunch of solar companies but after reading their mediocre reviews I decided to go with NES&G as their reviews were overwhelmingly positive and the fact that they were a local company with a good history. Andrew Guntlow at NES&G was my primary point of contact. He was outstanding explaining everything thoroughly, was very good with communicating the next steps and timing expectations. He and the installers were very courteous and friendly. My installation had multiple aggravating issues with the Utility (Eversource). I was cc'd on all the email communications between Mr. Guntlow and the utility. I don't know how he kept his cool dealing with that on a regular basis. He must have a cat he can kick, a punching bag, or maybe drinks heavily (just kidding of course on all 3 snide comments). At the end of the day my system went live with a month before the federal tax incentive went away. So far I've had no troubles with the system. My Feb 2026 electric bill was half what it usually is even with a fair amount of snow on the roof. I anticipate having no more electric bills from April onward. My only complaint is just that we need to have more sunny days!
Bradley D.
Google Review — 5 months ago
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New England Solar + Green are a model business - the owner, Andrew, is an expert in solar panels, he is highly motivated, customer oriented, hands on with every detail and deals with his customers directly, answering all customer questions in terms you can understand. And most shocking of all: he delivers on schedule! Result: you are happy, he and his workers are happy, everybody is happy! Why can't every business work the same way? We installed roof panels two years ago, they still work great. Along the way Andrew has answered all my questions and has continued to support us, his customer, with questions as they arise. I highly recommend his business.
Gregory L.
Google Review — 7 months ago
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We are very happy with Andrew and the team at New England Solar + Green. We looked at the large regional companies a few times. We always felt there was an angle with these large companies where the solar benefit was aimed at them and not the homeowner. New England Solar + Green simplified the process, had the best prices with the best benefit for us as the homeowners. The install was well planned and coordination and communication was excellent. Their own team of local installers provided a quick and professional install. Local electricians completed all the necessary wiring. Andrew guided us through every step of the process up to an including our setup with SRECT solar credits. We couldn't be happier with New England Solar + Green. We highly recommended New England Solar + Green for Berkshire County and the surrounding area. Honest pricing, and great communications throughout the process. We have no regrets using this local company that will be here for our future needs.
Scott C.
Google Review — 7 months ago
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⭐⭐⭐⭐⭐
we had planned to put solar panels on our house when we built it in 2018 but delayed the decision for a couple of years due to finances. We struggled to find a solar panel and installer and happen upon New England solar and it's primary person Andrew Culo as soon as we met with Andrew on the initial interview we knew we'd found a reliable, enthusiastic and knowledgeable, solar man and we weren't wrong. He and his partner installed our panels with very little delay, he consulted with us on a regular basis for what we needed. His company walked us through all the regulations and other hook up issues that we might encounter and did all the basic paperwork so that there was virtually nothing that we had to do once the panels were installed. We found our experience with Andrew exceptional and have since recommended him to our good friends who are also now building a house. We recommend him to anyone who reads this.
Jill R.
Google Review — a year ago
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Andrew and NE Solar are the best in the business! We did a lot of research and was very impressed with his knowledge, directness and honesty. He designed a very comprehensive array and had it working within a month. He is available for any questions, answering immediately via email. His staff was friendly, accurate, and respectful. The best part: we have not had an electric bill since installation and we just sold some Recs for cash! I can't recommend him Enough!! And we're promoting planet health!
Jackie I.
Google Review — 7 months ago
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The service and installation by Andrew and his team was top notch and seamless. Andrew is highly knowledgeable and his team completed a meticulous installation. Andrew initiated and guided us through all the paperwork and registrations. Andrew is a local business owner and you will deal with him directly. Unlike some other larger companies that will try to process you through a sales team located in another state. I highly recommend Andrew and his team at New England Solar.
Anne T.
Google Review — 7 months ago
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I couldn't more highly recommend New England Solar + Green. Andrew G. was thorough in his explanation of solar panel installation, discussed the pros and cons of different systems, addressed our concerns and possible future needs and was always prompt in getting back to us when we had questions during the installation and inspection period. The cost for installation was competitive, and an added bonus was that they were from the Berkshire area. The installation crew was terrific—they were efficient and kind. And the panels look great on our roof!
Lucia L.
Google Review — 9 months ago
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My experience with NE Solar + Green was excellent. Andrew came by to evaluate the property and provided me with a wealth of information. After receiving the proposal, he answered all of my questions promptly and with great detail. He took care of all the paperwork for permits and for the interconnection. The install went quickly and they did a great job of cleaning up after each visit. The communication was excellent and made every step easy. I highly recommend them for solar installation!
Blue H.
Google Review — a year ago
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I had a great experience using New England Solar and Green for our solar project. Andrew answered all of my questions thoroughly, came up with a design to maximize our production, and a fair price to install. Andrew was always on site and his team was always on time. The level of service and time to install beat all my expectations.
Rob S.
Google Review — a year ago
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Buying Solar has become harder than buying cars these days but Andrew made the entire process painless. Everything from the initial site assessment to the final PTO required no effort or management on my side. Andrew was always a call or email away to answer the myriad of questions I had. You want actual roofers to do the install and that's what these guys are. It was no surprise to me that they were the only Enphase Platinum rated dealers in the area. Also massive thanks to Andrew for dealing with permitting jungle that is Upstate New York.
Akshay A.
Google Review — 4 years ago
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⭐⭐⭐⭐⭐
Andrew and NES+G were a pleasure to work with. Andrew communicated clearly at each stage, gave us honest and helpful advice for making final decisions about exactly what we needed, and completed the work on our solar install ahead of schedule -- and it looks beautiful to boot! We couldn't be happier with NES+G or our new solar system.
Anna P.
Google Review — 4 years ago
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Andrew and the whole team at New England Solar + Green did a great job. The installation looks great! Andrew answered all my question and expertly guided us through the entire process. I would highly recommend them.
Arthur G.
Google Review — 9 months ago
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⭐⭐⭐⭐⭐
I researched and met with the competition, and New England Solar was by far the best choice. Andrew Guntlow is a complete professional in every way - incredibly knowledgeable, thorough, and responsive. He's on site every step of the way - on the roof, in the house, making sure everything is done right. An A++ experience!
Jennifer B.
Google Review — a year ago
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⭐⭐⭐⭐⭐
Andrew and his team were very dependable, knowledgeable, professional and it was a pleasure doing business with them. Andrew sent us a very detailed proposal, kept us informed about the project, answered all of our questions, handled all the paperwork. We would highly recommend NES+G for your solar project.
Russ
Google Review — a year ago
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AFFILIATIONS
MANUFACTURERS

With over 25 years of established experience, we are deeply invested in the local community. We utilize the latest technology from the world’s top manufacturers to deliver high-quality solar panel installations designed to operate for decades!

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