Logo of New England Solar + Green

New England Solar + Green

  • 65 North St, Williamstown, MA 01267
  • Commercial Roofing
  • 24/7 Emergency Repairs
  • Financing Available
  • Free Estimates
  • Metal Roof
Hours
Mon7:30 AM - 9:00 PM
Tue7:30 AM - 9:00 PM
Wed7:30 AM - 9:00 PM
Thu7:30 AM - 9:00 PM
Fri7:30 AM - 9:00 PM
Sat7:30 AM - 9:00 PM
Sun7:30 AM - 9:00 PM

About the Business

At New England Solar + Green, we pride ourselves on our versatility and technical expertise, handling both residential and commercial projects with precision. Located in Williamstown, Massachusetts, we offer a comprehensive range of services, including roof replacement, repair, and inspection, as well as gutter cleaning and specialized roofing solutions like tar and gravel. Our team is dedicated to managing complex projects from inception to completion, ensuring that every detail is meticulously attended to. We are recognized for our organized approach and consistent quality in every job we undertake. Our commitment to delivering durable, high-quality results is evident in our thorough project coordination, allowing us to meet the unique needs of our clients across Williamstown and surrounding regions. Whether you are looking to enhance your existing solar system or need expert roof repairs, we are here to provide long-term value and reliability in every aspect of our work.

What people say about “New England Solar + Green”?

Customer feedback for New England Solar + Green is overwhelmingly positive, highlighting their exceptional customer service, prompt communication, and efficient installation processes. Many reviews emphasize the expertise and responsiveness of Andrew and his team, who consistently provide detailed information and handle all necessary paperwork. The installation experiences are noted as swift and thorough, often exceeding expectations. Customers appreciate the professionalism and reliability demonstrated throughout their solar projects, contributing to a high level of satisfaction.

What Users Like The Most

  • The level of service and time to install beat all my expectations.
  • Andrew was very responsive and able to inform us about all aspects of installation and performance.
  • So glad we made the choice to go solar with New England Solar + Green.
  • The installation was swift and very professional.
  • They took care of all the paperwork for permits and for the interconnection.

What Users Like The Least

Customers are fully satisfied

Recommended Reviews

Overall Company Rating
Excellent 5.0
Out of 80 reviews
5 stars
4 stars
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Show first:
petenardacci
Jun 24, 2025

Trinity was pushing sales in the neighborhood, and we were given time and several estimates by their sales rep on several choices- to add on to our existing solar system. I would prefer a more local business- and even if the installation cost would be less from Trinity, my mindset is to stay local- Why? -New England Solar +Green answered the phone with a real person, and I expect that if any problems arise, a local company should be able to address issues much faster- they are HERE! A big box company like Trinity will send a sales person who collects the sales commission, and is never seen again. Andrew at NES+G stopped by, and was super educated and informed about all things solar- our questions were answered immediately, and without hesitation. Andrew's knowledge and experience showed right from the start, which made us feel quite comfortable! After several estimates were presented to us, we chose NES+G! Throughout installation, Andrew was present- start to finish! I mentioned this fact to Andrew who responded that "These jobs need to be done MY way!" - which strikes a particular chord with ME- This is MY house, and I want things to be done MY way! Our confidence in NES+G just grew tenfold! Issues with our older solar system were addressed by NES+G promptly, and the new system was tied into an app that allows us to see what both systems here are doing in real time. Andrew, his company, his crew, his electrician- were friendly and super confident- did amazingly neat and clean work, and I challenge ANY company to do better than NES+G!! I have to say that this contractor experience was the most painless procedure this household has ever seen-we are so impressed, our expectations so greatly surpassed that we are at a loss for words! Andrew and company, thank you so much for being there and walking us through the entire process, clearly the correct choice is NES+G!!

Rob Sekowski
Jun 9, 2025

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.

M. Jennifer Bloxam
Jun 9, 2025

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!

Russ
Apr 20, 2025

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.

Jill Rehmann
Apr 2, 2025

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.

Ursula Bare
Jan 31, 2025

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!

Katherine Nahum
Nov 9, 2024

My son and I collaborated on this solar project. We give Andrew 5 stars because he entertained and answered all our questions, and delivered spectacularly on the timeline. He is a little stiff inter-personally, but that is probably because he is so bright.

Peter Filkins
Nov 7, 2024

Andrew was very responsive and able to inform us about all aspects of installation and performance. The installation was swift and very professional. Highly recommended.

Jasper Madrone
Jun 5, 2024

Andrew was great. Helped every step of the way and got me up and running very quickly. Would highly recommend :)

Theresa Collins
May 16, 2024

So so pleased with the reinstall of our solar panels.They always didn’t look quite right since install 9 years ago.Needed a new roof and Andrew was recommended to me .Im a nervous homeowner but Andrew handled it. Not to mention it came in a little under estimate and they look fantastic.

RAYMOND FELDMAN
May 4, 2024

seamless worry free installation. andrews engineers upgraded structure on my roof and was able to install right where i wanted my panels. can't see them from the street. other installers would not quote me where i wanted them and he had the best price too.

KATHRYN LITTLE
Mar 25, 2024

An excellent company to do business with! They were highly professional and the quality of work is outstanding. The entire process was thoroughly explained to us, any questions were replied to quickly, and all transactions were handled efficiently. So glad we made the choice to go solar with New England Solar + Green.

Joseph Tovares
Mar 12, 2024

New England Solar + Green was a joy to work with. I highly recommend them. Andrew was very responsive and explained the entire process to us in advance.

Arthur Fuleihan
Feb 26, 2024

Totally happy with the removal and reapplying of our existing solar panels. New England Solar+Green was always available for questions and did more than was expected. Andrew and his team found an existing problem which we weren't even aware of and solved it! We're very pleased with the outcome and are glad that we are still on their 'radar' for possible future problems. Thank you!!

Rebecca Tucker-Smith
Feb 7, 2024

AJ was terrific through every step of the solar panel install. He make the whole complicated process feel very simple, took care of absolutely everything on his end, was really easy to reach and get info from, and he's just a very friendly, nice guy who is a pleasure to work with! Everyone who works with/for him is also really great.

Luis Coelho
Nov 21, 2023

Excellent execution of the installation and coordination for all permits and inspections. Completed the project ahead of schedule. It took less than two months from proposal to have a fully operational system.

Melissa Cragg
Oct 16, 2023

We’re doing a little happy dance today—with Andrew Guntlow of New England Solar serving as our guide we are now LIVE and generating sufficient power to power our home. Andrew and his team were well-informed, clear, and very effective in all phases from the initial needs assessment to identifying alternative solutions to installation. They didn’t overpromise. There is a lot of paperwork involved in this that I hadn’t expected. New England Solar took care of all that they could. BTW, National Grid was also good about installation of the new meter and explaining what info it was providing. I credit good, clear communication from New England Solar for what seems to be a constructive relationship.

Daniel Louis
Oct 6, 2023

Andrew helped us install a large tracker on our way to being net-zero. There were some hiccups do to zoning and the electric company(they made us upgrade the local grid), but in the end he helped us through these obstacles and our tracker is making large amount of power. At the moment (early October) we have 5,500 kwh balance with the electric company from a tracker that was installed in November.

Tina Rubin
Aug 31, 2023

Great experience with a very experienced technician, Andrew, who also sold me they system- extremely knowledgeable.
Also the installation was great and he worked with me to optimize to the moon and feel of my house. I had several estimates and went with NES because they were local, knowledgeable and very hands on and lived up to their commitments.

Gary Hutton
Jul 6, 2023

The purchase of our solar panels nine years ago has been one of our best investments; primarily and importantly as a sustainable renewable energy source with a positive impact on the environment, and secondarily as a cost savings.
Recently a micro-inverter on one of the solar panels required replacement. A link to Enphase-Envoy connected us to Andrew at New England Solar + Green. He proved extremely professional, organized, and a pleasure to work with. The installation team arrived on schedule, replaced the micro-inverter quickly, expertly, and at a very fair price. We heartily recommend Andrew and New England Solar +Green.

James Rodda
Apr 27, 2023

After dealing with other companies who tried to do it all remote from states away, we went with New England solar. They are local, and came on site multiple times. They were very clear on options and cost and instalation was quick and professional. I highy reccomend them!

lisa rubens
Feb 22, 2023

Very happy with my solar panel installation and all the help provided by Solar & Green to get set up. Andrew Guntlow was very responsive and helpful all along the process. Bring on the sun!

Amber Stockham
Feb 16, 2023

We've had our solar array long enough that the original installer is no longer in business, so we were worried when high winds damaged the array, but Andrew took in our "orphaned" system and fixed the damage. He was incredibly professional, and we really appreciated the help!

Michael White
Feb 3, 2023

I would give them zero stars, but this option is not available. So, for the past two weeks I have called and left three messages and went online to the website and completed the online information where you think they would then call for a consultation. Well, after four times and the phone calls I have yet to receive a call to discuss having solar put on my house. really pathetic if people want to stay in business. So, to the owner if you read this do not call me, I have found other options.

G H
Dec 19, 2022

We reached out to New England Solar about a ground mount system after the constant electric rate hikes in the last two years. Andrew responded promptly to us and set up a site inspection. From there it was an easy process. Andrew went over some of the pro's and con's to adding batteries (we are set up to add them later) and what to realistically expect production wise. This included a detailed proposal we were able to look over and make sure we understood what we were getting into.

Once we agreed, things moved pretty quickly and smoothly, with NES+ Green taking care of all town and electric company permitting. Something I think that also should be noted is that Andrew is detail oriented and on site. This is something I think is missing on a lot of the "fly by night" or larger businesses. Connection boxes and the like can only be so beautiful, a ground mount isn't winning a design award. That said, NES took the time to tuck our boxes away as much as possible and they also took care to try to minimize any extra bits on the mount themselves to keep them as clean looking as possible. Some people don't care how things look, but we do and it's something that should be taken into account.

The installation was completed with minimal disturbance to ourselves and our property, and done quickly.

10/10 will use them in the future to expand our solar capacities as we go forward in the future.

Richard Heath
Nov 7, 2022

Work quoted was completed in a timely fashion all questions or concerns addressed promptly very pleased with the work and professionalism they have shown

Judy Usow
Oct 30, 2022

New England Solar was recommended to us by a friend & we were equally impressed. They were our best priced option and provided great service. Andrew Guntlow was very knowledgeable and responsive. He checked in repeatedly to see when he could complete his work. My husband & I recommend them to anyone thinking of installing solar. They did a great job!!

martha klay
Oct 29, 2022

Andrew responds immediately to any question and thoroughly explains and answers to full satisfaction.

He does the on-site visit, the entire quote, and the installation. You are dealing with one person, a small business owner who lives in your community.

I recommend Andrew without reservation and feel completely satisfied with the entire process

Keith Brown
Oct 5, 2022

Andrew and his team do great work. Informative, fast and they handle not only the install but all the related forms, inspections, sign offs, etc. Oh and great looking panels too!

David Richard
Oct 5, 2022

I have had my system for 5 years now and I have to say, I am not a person who gives 5 star reviews, but this is by far the best contractor I have ever dealt with in my life. Andrew really knows his stuff! The install went flawlessly and was up and running in no time. (I have heard horror stories of systems waiting for months to turn on.) The system is performance and output is even better than originally projected! I have had a few questions over the years and Andrew always responds right away. If you are considering solar, this is the company you want to go with!!! (I am also happy to report that the system has paid itself off!)

Bill Arzt
Oct 3, 2022

New England Solar + Green. YES! Andrew right up front answered all my questions and I had a lot of them. Explained the installation of panels and electrical aspects of the job. One very important thing. Andrew is precise and exact in his work. You do not hear "that will be close enough." It is EXACT with Andrew. I highly recommend New England Solar + Green.

John Dillard
Oct 3, 2022

Andrew (owner) is an outstanding solar power system designer, installer, and communicator. He uses only excellent components, and does everything the best way. For example, unlike other contractors I spoke with initially, Andrew's design had micro-inverters on all of my panels, in order to get the maximum production from the system in my situation. I am very proud of the system he sold me, and it works great!

John Choquette
Oct 2, 2022

The timing was perfect, Andy was quick to meet me on October 4th ,I agreed on cash price gave the 60% cash down, system completed and online October 29, 2022 . NOW THATS SERIOUS SERVICE! Many reasons I stayed local such as service, the name Gutlow in it self is we respected name in this area. The system is producing as it should and charges my plug in hybrid Free of charge now I'm energy independent. Thanks Andrew please doing business with you .

Amy Verdi
Aug 26, 2022

I am extremely happy with my installation of solar panels on my house. We had a very large demand for our energy because of electric heating, and Andrew was able to design a system that accounted for over 80% of our demand and was still VERY reasonable in cost. I shopped around with both local and national solar installers, but NES+G had the best price per watt. Andrew was also very knowledgeable about every element of the process (including making sure our roof could properly support the system), and he made sure that he communicated every aspect and that we were comfortable with the design and cost. I did not feel ANY sales pressure like I did with other companies, and truly felt he designed and installed the system that we will benefit most from.

NES+G was extremely prompt with all forms of communication (usually a response within an hour or less!) and took care of every element of the project's paperwork and communication with the electric company.

I am thrilled with the design (modern and sleek!) and with the experience of working with an incredibly professional and courteous team.

I would highly recommend them for a residential solar system.

Bruce Allardice
Jul 24, 2022

New England Solar + Green has been servicing our solar system since the company that installed it moved on. I have always found them a pleasure to deal with, very responsive, friendly and reliable. Highly recommended for Solar users in the Berkshires and Eastern NYS.

Sharon Claffey
Jul 13, 2022

We couldn’t be happier with our choice of having NES+G install our solar. I am most grateful for Andrew's transparency, timeliness, and expert knowledge. He is involved in every step of the process. He came to do the initial site visit, sent a detailed proposal, answered all questions, and it never felt like a sales pitch. In fact, it felt like he was looking out for us and not recommending anything that was unnecessary. He was quick to respond and file the permits and paperwork. He also did the installation and set up, and used our local and trusted electricians. The whole process has been seamless and even quicker than the original timeline estimate (and less expensive than quotes we received from other companies). I’m also so glad NES+G is a local company that is invested in our community. Thank you for your hard work!

Joseph Johnson
Jun 30, 2022

The entire process was very easy. Andrew was helpful at every step of the process and finished project a month sooner than we anticipated. Highly recommend New England Solar + Green!

Akshay Asok
Jun 30, 2022

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.

Brian McLaughlin
Jun 10, 2022

The company was straightforward and honest form the start. They did exactly what was promised and actually finished a few weeks ahead of what was discussed. The system has performed flawlessly. Not some shady Solar sales man. The guy that inspected the site and gave me the quote was the guy on my roof installing. They always responded timely to questions. The install went smoothly. Job site was safe and clean.
Nothing but good things to say about New England Solar.

Dan L
Jun 3, 2022

NESG was an excellent company to work with on my project. Quick, but thorough with the quote and project options. They stayed on time to what they committed. Anyone looking for solar should contact NESG.

Anna Plantinga