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Occidental Power
“I had heard a lot of good things about this company in the past (they have been around a long time, so lots to talk about) and Greg and his team exceeded my expectations.”
Best Solar Panel Installers near Union City, CA
These contractors serve Union City from nearby bases in towns including Dublin, San Jose and Hayward.
24 contractors listed · 2 open 24/7 · 9 open weekends · 21 rated 4.5+ · 7 show a license
Data verified October 18, 2026
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Ultimara
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Happyvolts
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Century Roof and Solar
- Project
- Solar System
- Work
“After some research online for a reputable roofing company, my sister, who had contracted Tony @ Century Roof for her client's home remodel, highly recommended his services.”
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Saber Roofing Inc.
- Team
- Communication
- Photos
“That enables them to provide longer warranties than other roofing companies, plus Saber really understands the pros/cons of various roofing alternatives.”
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Smart Solar Panel Cleaning Bay Area
- Pictures
- Price
- Washed
“Although, I paid in cash, I was surprised by a Processing fee, which I hadn't seen from other Solar Panel cleaning companies that charged a flat rate”
The 24 contractors listed for Union City, 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.
Area overview: Union City, CA
23 of the 24 contractors on this page have a rating, from 4.1 to 5.0 across 1,365 reviews; 10 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 (89%), responsiveness (85%) and quality (84%). The topics that come up most in reviews of the contractors on this page are "price", "communication" and "estimates". 2 are open around the clock; 9 are open on Saturdays and 6 on Sundays. The services the contractors on this page list most often on their websites are solar (3), solar panel installation (3) and roofing (2). 7 show a license on their websites and 5 have a BBB rating of A or A+. 14 have ten or more years of experience, the longest 39 years. 3 offer emergency call-outs; 3 offer financing or payment plans; 10 give free estimates; 3 are family- or locally-owned and 2 list coupons or special offers. We have a website on file for all 24 of the contractors on this page; 22 publish a contact page; 19 list a public email and 4 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.
Is anyone in Union City itself doing solar work?
Not in the listings yet. The 24 contractors shown are the nearest within 25 mi. Solar crews cover a wide territory from one warehouse, so distance matters less for the install than it does for a service call years later. Ask how they handle callbacks out here.
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Solar Bill Review
- System
- Electric
- Information
“Its been years since i had my solar from Bill but i get a call every year to go over my PGE statement to make sure i understand my bill and how i'm maximizing my usage.”
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Dura-Foam Roofing & Solar Center
- Team
- Summer
- Work
“Durafoam (and particularly Lalo) were spectacular, and took superb care of many details and 'corner cases' that had accumulated since the original foam roof two decades ago.”
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Besty Solar Inc.
- Questions
- System
- Profession
“- Sales/administration team was professional, provided detailed information on cost, tax benefits and energy savings offered by the green-energy, and was very responsive during the whole process.”
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Synergy Power
- Communication
- Permit
- Solar Panels
“The best part is because of 2 sections of flat roof surrounded by short parapet walls, you cannot see the panels from any vantage point around our home.”
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Go Brilliant Electric
- Project
- Team
- Happy
“They were able to bring the main subpanel up to code, reverse polarity on some recepticals, installed GCIS's were needed and an install a exterior "in-use" cover on an outside GCIS receptical and other repairs.”
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Bay Builders and Remodeling Inc.
- Project Manager
- Design
- Work
“We were looking to renovate our outdated kitchen for a few years already, but we always put our plan on hold because finding a great construction team is really difficult.”
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Sierra Roofing and Solar
- Estimate
- Questions
- Dry Rot
“It was a very pleasant experience, everthing happened on time, the work site was througly cleaned up, all staff - sales, project managers, installers - extremely professional, nice to deal with.”
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Solar Pro Energy Systems
- Team
- House
- Meeting
“The interaction with Steve and his employees were easy and completed with absolute faith that there weren't any issues that wouldn't and couldn't be addressed properly.”
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Hertz Electric Inc
- Tesla
- Project
- Led
“He offered a better rated set of materials compared to the competition and completed the job on time even though the project got a bit more complicated as it went.”
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Northstar Solar Inc
- Team
- Quote
- Solar Panels
“During the install things went pretty smoothly, we had some excitement with all the rain earlier in the year but Ryan's head roofing installer was very responsive and came out quickly to resolve my concerns with the roof install.”
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Solaredge Technologies Inc.
- Installer
- Calls
- Tech Support
“For the Solar Edge admin folks, I would suggest try to hire more folks to answer the phone and make sure you acknowledge Sam for his valuable contributions to customer success!”
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Home Networks
- Company
- Charger
“They even saved me hundreds of dollars by connecting the charger in to my sub panel after doing all the power calculations to ensure that I'll get the best out of it with much lower cost.”
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BEI Construction
“Nice people and offices”
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Sunlight Electri-Cal Solutions
- Solar System
- Price
- Battery
“Juan was there not only to there for the deal/initial sell but also helping solve maintenance issues with the same attentiveness and support 5 months after the system was up and running.”
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Sky Power Solar
- Price
- Solar Panel
- Companies
“When I was in the market recently for another new solar installation, I reached out to Sky Power in addition to the other two larger installers - Sun Run and Solarcity.”
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Evergreen
- Communication
- Windows
“Been knowing this company for a while now and finally pulled the trigger.”
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Emeraldeco
- Rebates
- Hvac
- Solar
“I would also recommend them for any solar, battery backup, electrification, green projects in the future - they do a great job keeping up with all the latest technology in a dynamic field.”
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Enact Solar
- Team
“Niche products, Great technical architecture, Challenging work, Awesome team, handsome salary.”
Solar Panel Installation Services in Union City, CA Cost Estimates
Minimum cost
$5017
Maximum cost
$49055
National Average
$25990
Avg Per Hour Rates
$129
$18120
$34002
Typical price range is based on 451 cost profiles
Why these companies made our list
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