Great Sky Solar

Great Sky Solar operates as a solar energy contractor based in Lexington, Massachusetts, where they have earned a 5.0-star rating across 767 reviews. The company employs a team of more than ten local experts who specialize in designing and installing residential solar systems tailored to individual homeowner energy goals and roof configurations. Their service area encompasses Lexington and surrounding communities in the greater Boston metropolitan region, where they have completed more than 2,980 solar installations since establishing their operations.

What distinguishes Great Sky Solar from many contractors is their six-step process that emphasizes transparency and customer empowerment at every stage. They begin with a custom design phase that evaluates roof condition and energy consumption patterns, then proceed through a good-faith agreement with zero deposit required before work begins. Each project receives a dedicated project manager who coordinates permitting, utility interconnect agreements, and rebate processing including REC credits and state rebates. The company installs Tesla Powerwall battery storage systems and provides ongoing monitoring through the Tesla app, backed by a third-party solar generation guarantee that validates their system performance claims.

Homeowners who have worked with Great Sky Solar frequently mention specific team members by name, highlighting the personalized attention they received throughout their projects. One Lexington homeowner detailed working with sales specialist Josh who provided collaborative guidance on panel sizing, placement options, and battery configuration without high-pressure tactics. Their project manager Rebecca proactively coordinated complex permitting and utility requirements, while the installation crew including electricians Tony, Jesus, and Trung, along with installers Silas, James, and Chris, maintained meticulous attention to battery placement and conduit routing. The reviewer noted that Great Sky Solar uses their own full-time installers rather than subcontractors, and the difference showed in the quality of workmanship and care.