The Workmanship warranty addresses every one of the labor your installer performs. It's normally somewhere between just one and 10 years. Certification is not a organization requirement for EnergySage installers, nonetheless it's hugely advised. Should the installer began Doing the job in the solar market ahead of NABCEP was formed https://www.americanarraysolar.com/4-solar-myths-that-leading-bakersfield-solar-contractors-debunk/