Green Mountain Solar

Green Mountain Solar has spent nearly a decade building one of the most operationally focused residential solar practices in Vermont, and the recognition has followed. Founded in 2017 and operating from two Vermont offices at 76 Ethan Allen Drive in South Burlington and 22 Blue Spruce Lane in East Dorset, the company has been named Vermont's Best Renewable Energy Company in both 2024 and 2025 by the Vermont Best of the Best awards program. The team's NABCEP certification on the installation side and its in-house service department on the back end are exactly the credentials our research team looks for when distinguishing a dedicated installer from a generalist contractor. What stood out is the depth of what Green Mountain offers under one roof. Beyond standard rooftop residential solar, the company installs battery backup systems for grid-outage protection, EV chargers, and cold-climate heat pumps, the last of which is particularly relevant for Vermont homeowners trying to electrify away from oil and propane heating. Systems come with 25-year panel warranties and a 12-year workmanship guarantee, and the company partners with EastRise Credit Union, a Vermont-rooted financial institution, for solar loan financing rather than routing every customer to a national finance broker. That kind of local financial partnership often results in lower total interest costs than dealer-fee loans from the major out-of-state lenders. On the customer-facing side, Green Mountain Solar carries a 5.0-star Google rating across 289 reviews at the time of our research, an unusually clean review history for an installer of its scale. The combination of a Vermont headquarters, in-house Vermont service technicians, knowledge of Green Mountain Power and Vermont Electric Cooperative net-metering rules, and award-recognized customer service is genuinely difficult to beat in this market. Prospective customers should still ask for system production guarantees in writing, request specific panel and inverter model numbers before signing, and confirm which crew members will perform the actual roof work versus the electrical interconnection. With a composite score of 78.5 out of 100, Green Mountain Solar stands as our top-ranked solar company in Vermont for 2026.