Ambrose Solar began in 2013 when Pat Ambrose established Ambrose Construction, bringing more than a decade of experience from the general construction and subcontracting fields to Vacaville. After years of witnessing poor customer treatment and subpar workmanship in the solar industry firsthand, Pat and co-founder Ian Finger launched Ambrose Solar in 2017 with a clear mission: to deliver the quality and service that California homeowners deserve. What started as a reaction to an industry problem has grown into one of Solano County’s most trusted solar installers. Today, this Vacaville-based solar company provides full-service residential and commercial solar installation and battery storage solutions throughout Northern California, from Fairfield and Dixon to Benicia, Vallejo, and the greater Bay Area and Sacramento regions. Ambrose Solar has earned recognition as a SunPower Master Certified Installer, a designation awarded only to superior solar companies that meet or exceed SunPower’s rigorous standards across every facet of operations—from customer service to installation quality to post-installation satisfaction. The company also holds Tesla Powerwall Certified Installer status and has been named to Solar Power World’s Top Solar Contractors list, ranking among the nation’s leading installers. With a BBB A+ rating since 2013 and a 4.8-star average across hundreds of customer reviews, Ambrose Solar has built its reputation on transparent education, personalized consultation, and meticulous attention to detail. Their in-house team handles everything from initial design and permitting with PG&E to final activation and ongoing support, ensuring Vacaville homeowners experience a seamless transition to solar energy. The company’s commitment to quality extends beyond installation day—they offer comprehensive system monitoring and service for both systems they installed and those installed by other companies, providing peace of mind that comes from working with a local, established business. In a region where rising utility rates continue to impact household budgets, Ambrose Solar has helped hundreds of California families take control of their energy costs with high-efficiency solar panels, battery backup systems, and custom-designed solutions sized specifically for each home’s unique needs. Their installations are backed by industry-leading 25-year warranties, and their focus on clean energy and eco-friendly practices reflects a genuine commitment to both customer savings and environmental sustainability throughout Solano County and beyond.
Ambrose Solar is a full-service solar installer based in Vacaville, California, serving residential and commercial customers throughout Solano County and surrounding Northern California communities. The company specializes in complete solar panel system design and installation, battery storage solutions including Tesla Powerwall, and energy management systems. As a SunPower Master Certified Installer and Tesla Certified Installer, Ambrose Solar provides high-efficiency solar installations with 25-year warranties. Their service area includes Vacaville, Fairfield, Dixon, Benicia, Vallejo, and extends to the greater Sacramento and Bay Area regions. The company handles all project phases in-house, including consultation, system design, permitting, installation, utility coordination with PG&E, and ongoing system monitoring and maintenance.
SUNPOWER MASTER CERTIFIED: We’ve earned SunPower’s Master Certified Installer designation, awarded only to companies that meet rigorous standards for installation quality, customer service, and deep knowledge of local permitting—giving you confidence in both product and craftsmanship.
LOCAL VACAVILLE ROOTS: As a locally owned and operated solar installer serving Solano County since 2013, we’re here when you need us with same-day service capability and a showroom at 820 Eubanks Drive where you can see product demos and meet our team face-to-face.
PROVEN TRACK RECORD: With a BBB A+ rating, recognition as a Solar Power World Top Contractor, and hundreds of 5-star reviews across Google, Yelp, and BBB, we’ve built our reputation on delivering exactly what we promise—on time, on budget, and with exceptional follow-through.
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