Luminalt Solar

Each mark is one company we hold in San Francisco whose Google breakdown has been read, placed by its share of one and two star reviews. Luminalt Solar is the red one. The amber line is the middle of that set, which includes suppliers and maintenance businesses as well as installers.

• 2★ · around August 2020 · the company replied

  Yes, the panels work. I think? I'm pretty sure. However, the installation process was a disorganized mess. Only to be followed by my finding that our solar generation and power usage had been wrong for 2 years so the app data was useless. They have yet to resolve it. Lots of promises around project management, service, etc but very little actual follow through. Extremely disappointing as we went with them bc they are a local company. The halo effect of "they're local!" only last so long - this is an extremely expensive system that needs to work reliably.

• 5★ · around August 2026

  Luminalt came out to repair corroded wires that was impacting our getting power from our panels. Kayla helped to set up an appointment that was convenient and the team that came out to do the repairs were courteous, efficient and not disruptive. Since the repairs we have had days (days!) of 99% power from our solar! Thank you, Luminalt!

• 5★ · around July 2026 · the company replied

  10/10 Luminalt was great to work with for installing solar panels on the pitched roof of our home and battery storage in our garage! From initial assessment, to planning, to installation, to app setup, they answered our myriads of questions and were never pushy - always super professional. We messaged several solar installers for quotes, and Luminalt was prompt in their reply, as well as honest, and very knowledgeable. They definitely stood out from the rest and for good reason. Highly recommend!

• 5★ · around May 2026 · the company replied

  In January this year I discovered that my NEM2 application from three years ago was still active and Luminalt helped me install a 5kw solar system system (no battery) and get it approved ahead of the April deadline. The team is extremely knowledgeable, they have done hundreds of successful installs in SF and know the permitting process and the building department inspectors personally to get things done quickly. Many other solar installers aren't local and while some of them might be slightly cheaper, they don't have the know-how, local connections, and/or expertise to get things done in a tim

Reviewer names are not published here. Negative reviews are shown first because they are the ones a listing hides, not because they are more representative.

• solar system installation 7
• solar system design 4
• communication 3
• thoroughness 2
• going above and beyond 2
• easy to work with 2
• project management 2
• prompt replies 2
• inverter replacement 2
• battery storage options 2

Topics Google derives from the review text, with how often each appears. A frequent topic is not a good one: “price” turns up in praise and in complaints alike.

Taken from its own website. We have not checked any of it, and a sentence on a website is not evidence.

• Woman owned

  “wonderful. We also liked engaging a woman-owned engineering firm who assigned a…”

• Established

  “and sustainable business practices. Since 2013, she’s been on the Board of…”

Its website also mentions licence number, but not in a sentence we can quote cleanly.

• It is also reviewed on Yelp. Worth reading before you sign anything: those are a different crowd, and the complaints that reach the Better Business Bureau rarely reach Google.
• It posts on LinkedIn, Instagram and Facebook. A page that stopped posting years ago tells you something a listing will not.

Google’s own “people also viewed” set, in Google’s order. It is Google’s comparison, not ours.

• SolarUnion4.6★ · 142
• All Bay Solar Construction4.9★ · 84
• Sutro Power5.0★ · 2
• Bundle, A Solar Company5.0★ · 38

• CompanyRating breakdown1–2★Newest review held

• SunPower®

  4.5★ · 1,572 reviews · Richmond, CA

  10%
  Newest held review 4 months old

• Sunrun

  4.1★ · 625 reviews

  21%
  Newest held review this month

• Clearway Community Solar

  3.6★ · 355 reviews

  31%
  Newest held review this month

• SolarUnion

  4.6★ · 142 reviews

  9%
  Newest held review 7 months old

• All Bay Solar Construction

  4.9★ · 84 reviews

  1%
  Newest held review this month

• Sun Light & Power Solar

  4.8★ · 75 reviews · Berkeley, CA

  5%
  Newest held review 3 months old

Ordered by how much we can tell you about each, which is not an order of quality. We do not know which of these is better and would not say if we did.

• —The date above is the newest review we hold, which is not necessarily the newest that exists — we hold a large share of Google's reviews, not all of them.
• —We do not verify licences, insurance or bonding. Nothing here has been checked against a state licensing board.
• —We cannot tell you what an installation costs, and we hold nothing about the equipment they fit.

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