National Solar Rankings

Green Mountain Solar

0BBB Complaints (3yr)Excellent
9Years in BusinessFounded 2017
72.1/100Overall Score

Detailed Profile

Green Mountain Solar has served South Burlington and the Champlain Valley for 9 years, establishing themselves as a dedicated solar installer in a state that consistently ranks among the most solar-friendly per capita in the nation. Their NABCEP certification places them among a select group of Vermont installers who have met the industry's highest professional standard, and their perfect 5.0-star Google rating from 289 reviews is a standout metric that reflects exceptional customer satisfaction.

What makes Green Mountain Solar's perfect rating particularly meaningful is the volume behind it. A 5.0-star rating from nearly 300 reviews across nine years of operation suggests a company that has maintained flawless customer relationships across hundreds of installations and multiple seasons of system performance verification. Customers consistently praise clear communication, professional installation crews, and systems that meet or exceed projected energy production estimates.

Green Mountain Solar focuses exclusively on solar energy, which gives them a depth of specialization that multi-trade contractors who offer solar as an add-on service cannot match. Their design team understands how Vermont's seasonal irradiance patterns, snow loads, and grid policies should influence system design decisions. They work with premium panel manufacturers and pair systems with modern inverter technology to optimize production in a northern climate where maximizing energy harvest during shorter winter days requires careful attention to panel orientation, tilt angle, and shading analysis.

Vermont's renewable energy landscape rewards informed installers. The state's net metering program, administered through Green Mountain Power and other utilities, offers favorable compensation for solar production, but navigating the application and interconnection process requires familiarity with utility-specific requirements. Green Mountain Solar's dedicated focus on the Vermont market means they have processed these applications hundreds of times and understand how to avoid the administrative delays that can slow less experienced installers.

With a composite score of 72.1 out of 100, Green Mountain Solar holds the third-ranked position in Vermont for 2026.

Certifications

NABCEP Certified

Warranty & Guarantees

Production Guarantee
No

Operations

Company Type
Local / Regional

Financing Options

cashloan

Google Reviews (8)

Wendy L.

Exceptional customer service! From our first call to GMS through project completion, the customer service we experienced with GMS was exceptional. It is very rare to find a company with this level of...

Alex K.

I've had a terrific experience with Green Mountain Solar! From the first phone call to the office to get information (and talking with Maggie), to working with the solar advisor Casey on the roof-top...

Dan M.

I highly recommend Green Mountain Solar! They worked with me on several design revisions to achieve a system that balanced energy production with an aesthetically pleasing layout on our roof. The...

Ross S.

Fantastic job. The GMS team installed 15 panels on our roof and 2 backup batteries over a couple day period. They walked us thru what to expect and then totally delivered as promised. Highly...

Douglas R.

Shannon gave me a great beginning estimate with great information for my front roof, then I asked about expanding on this, and created a great proposal expanding to the back roof with a system that...

Gregory R.

GMS did a great job on a challenging timeline. We wanted to get our project done by the end of the year so we could take advantage of the expiring tax credits and they got it done! Ian the...

Amy W.

I have now worked with Green Mountain Solar on two projects and can highly recommend them. I used GMS first for a solar panel installation on the roof. The project went so seamlessly that I went back...

Wendy W.

Green Mountain Solar installed a rooftop solar array in March 2024. Every aspect of our experience with both Shannon, our consultant, and the crew was exceptional—professional and knowledgeable....