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2 of these contractors are based in Fairfield; the others serve Fairfield from towns including Napa (15 mi), Vacaville (8 mi) and Concord (20 mi).
2 open 24/7 · 10 open weekends · 21 rated 4.5+ · 14 show a license
Data verified October 18, 2026
The 24 contractors listed for Fairfield, CA design and install rooftop solar and battery systems. Each entry repeats what the company publishes about certifications, the equipment it fits and its hours, together with star ratings and comments drawn from public reviews.
22 of the 24 contractors on this page have a rating, from 4.3 to 5.0 across 3,014 reviews; 7 have 50 or more reviews and 21 are rated 4.5 or higher. When customers rate these contractors on specific qualities, they most often praise professionalism (90%), quality (85%) and responsiveness (84%). The topics that come up most in reviews of the contractors on this page are "efficient", "estimates" and "price". 2 are open around the clock; 10 are open on Saturdays and 4 on Sundays. 14 show a license on their websites; 1 lists staff certifications (EPA) and 2 have a BBB rating of A or A+. 15 have ten or more years of experience, the longest 70 years. 2 offer emergency call-outs; 9 offer financing or payment plans; 7 give free estimates; 5 are family- or locally-owned and 3 list coupons or special offers. We have a website on file for 23 of the contractors on this page; 16 publish a contact page; 14 list a public email and 1 takes bookings online. We count these figures across the contractors on this page; distances are straight-line, and hours and prices change, so confirm the details with the contractor before you book.
14 of the 24 contractors here show a license on their websites. Ask what is actually being claimed: an individual credential, a company license and a manufacturer approval are three different things. Each can be checked with whoever issued it, and none of them is checked for you here.
