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New England Solar + Green - Profile & Reviews

New England Solar & Green. (NES+G) started in 2009 by Vince and Andrew Guntlow to address the need of an all-inclusive renewable energy company while being able to complete all phases of a project: planning, design, implementation, and execution. NES+G implements 21st century design techniques and green technologies into our local community and the surrounding region.

11 reviews

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  • "Best installers Upstate."

    Reviewed 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.

  • "Excellent Experience"

    Reviewed Feb 23, 2022

    Our panels were installed and working in September 2021. The work was fast, professional and had eye appeal. The problem we encountered was with Eversource!

    Regardless of the fact that we had paid our bill, in full, to NESG Andrew was active and persistent in getting our problems with the electric company resolved. His attention to detail and efforts have us up, running and yielding positive results.

    Instead of feeling like a customer, NESG made us feel like partners in this endeavor.

    I recommend NESG without hesitation.


  • "Great service, communication, and professionalism from start to finish"

    "Great service, communication, and professionalism from start to finish"

    Reviewed Apr 25, 2020

    We recently had our system installed and up and running. Working with NESGS was a great experience. Right from the start Andrew kept up great communication. He was very prompt and thorough with his answers to all the questions we had. He went above and beyond to help us get the financing and incentives available to us here in NY. He also worked out the best equipment to cost ratio to optimize our incentive situation with our finances. He was very willing to find us a solution in a complicated situation and worked diligently through all the red tape and confusing answers from the various NY state solar programs. He and his crew worked quickly once we had the green light for installation, we were surprised how quick it actually was. The panels look great in place and we've been having a great time watching our solar gain each day. We have yet to see an electric bill reflecting our gain to usage ratio, but everything about our experience so far suggests Andrew created the best system to fit our needs. I would highly recommend NESGS to anyone looking to put in a solar system. They have the touch of a small company, but the security of a long time in business and really take their time to meet the needs of their customers.

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With over 25 years of long-established experience we couldn’t be more invested in renewable energy. We use the latest technology from the world’s top product manufacturers to deliver great solar power installations that will run for decade’s problem free. Local. Turnkey. Professional.

  • Installation
  • Solar Repair & Maintenance

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New England Solar + Green Headquarters

65 North Street
Williamstown, MA
01267 United States

Workmanship Warranty

A true 15 Year Workmanship Warranty.
We have performed service work on many installations that the previous installer promised the same thing but were unresponsive to the customer or worse wouldn't honor their warranty.


Enphase Energy Platinum Installer


NABCEP Solar PV Installation Professional
Cert# PV-100414-004450


Engineering, Construction Supervisor, Electrical, Plumbing, Hoisting


All applicable insurance certificates.

States served by New England Solar + Green

  • Massachusetts MA

Languages spoken by New England Solar + Green