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1 of these contractors is based in Danville; the others serve Danville from towns including Concord (11 mi), Hayward (14 mi) and Dublin (8 mi).
1 open 24/7 · 11 open weekends · 21 rated 4.5+ · 10 show a license
Data verified October 15, 2026
The 24 contractors listed for Danville, 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.
The 24 contractors on this page are rated from 4.3 to 5.0 across 1,718 reviews; 11 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 (91%), responsiveness (84%) and quality (80%). The topics that come up most in reviews of the contractors on this page are "price", "estimates" and "efficient". 1 is open around the clock; 11 are open on Saturdays and 6 on Sundays. 10 show a license on their websites; 1 lists staff certifications (EPA) and 1 has a BBB rating of A or A+. Domain records put 12 websites of the contractors on this page at ten or more years old; the oldest dates from 2000. 2 offer emergency call-outs; 8 offer financing or payment plans; 10 give free estimates; 4 are family- or locally-owned and 4 list coupons or special offers. We have a website on file for all 24 of the contractors on this page; 23 publish a contact page; 17 list a public email and 3 take 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.
Weekend hours appear for 11 of the 24 contractors here, which is often when a roof survey is easiest to arrange around work. The survey itself wants daylight and dry weather, since someone has to get onto the roof or fly a drone over it to check the covering and measure shading.
