Installing Solar in Hawaii for over 30 years
Residential & Commercial Solar Installation
Blazing Tubes system
Conventional pump solar hot water systems.
Thermosyphon solar hot
Residential PV systems.
Grand Solar was established in Hawaii in 1980 and became incorporated in 1985. During the more than 30 years of operation, the company has consistently been a leader in design, installation and service of nearly every type of solar thermal system sold in Hawaii. The original owner, John Grandinetti, still is present at all of the residential and commercial solar system installations completed by the company. In addition, the Photovoltaic systems offered by Grand Solar are US manufactured components only and carry industry leading product warranties on performance.
Consistently the leader in design, installation and service of nearly every type of solar thermal system sold in Hawaii
An active member of the Better Business Bureau since 1990, Grand Solar has maintained an A+ rating consistently. The Regulated Industries Complaint Office (RICO) has NO record of complaints filed or any legal actions initiated, due the fair and considerate treatment the company has always extended to all of its clients. Grand Solar is also a member in good standing with the Hawaii Solar Energy Association, the watchdog of the solar industry.