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Kathleen Giustino

Phone 510-526-5715 X6

Kathleen Giustino
A1 Sun, Inc.
1435 Fourth Street
Berkeley, CA 94710

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Kathleen Giustino

A1 Sun, Inc.
Chapter: Business Growth Network

Trades, Solar

My BusinessWe founded A1 Sun, Inc. in 2007 to install the highest quality photovoltaic and thermal systems for residential and commercial clients. We were accredited an Alameda County Certified Green Business our first year. We have earned an A+ Better Business Bureau rating. We belong to the Berkeley Chamber of Commerce, "Buy Local" and the West Berkeley Design Loop as well as ASES and Nor Cal Solar. We hire and work locally. A1 Sun’s staff offers 80+ years of combined design, engineering, and installation experience. Call us for a complementary site evaluation and we will develop the optimal system for your home or commercial project.

Ideal ReferralA homeowner, HOA, or commercial business with a generous south or west facing roof, no shading, who plans to generate electricity on their roof - Go Solar Now! (Best time to get full tax credit is when you reroof.)

Top ProductPV Modules, Electric car charging stations

Top Problem SolvedA1 Sun is able to solve "interesting" problems and design/ install modules effectively to get client their best option.

My Ideal Referral PartnerLocal contractors, roofers, architects. Anyone in BNI can reach out to his/her neighbor who is planning to contact a roofer for a new roof.