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Luminalt Solar

San Francisco Solar Companies
Ranked #3 in San Francisco | Grade B
4.70 (21 reviews)

Luminalt Solar

Local solar installer offering system design, permitting, installation, and service for residential and small commercial projects in San Francisco.

Why Homeowners Choose This Business

Local knowledge of San Francisco permitting and rooftops, steady communication from consultation through post-install support, and experience servicing legacy equipment when parts need replacement.

Service Area

Serving San Francisco and nearby Bay Area neighborhoods.


How This Business Compares

A quick local comparison based on ranking, review strength, and market visibility.
  • Performs at or above the local average for Google rating.
  • Shows strong customer satisfaction signals based on review quality and volume.

Services Covered

  Establishment
  Point Of Interest
  Renovation Services
  Solar panel installation
  Solar System Design
  Installations
  Inverter Replacement
  Solar Maintenance
  Solar Troubleshooting
  Residential solar
  Commercial solar
  Solar Monitoring Support
  Roof-Mounted Solar
  Grid-tied solar

Solar site assessments, custom system design, residential and small commercial solar installation, inverter replacement, monitoring and troubleshooting, and maintenance for existing arrays.


Recent Reviews

4.70

(Based on 21 reviews)

Reviews highlight responsive communication, with several customers naming prompt help from the service team when issues arose. Longtime clients note reliable performance over many years and appreciation for handling inverter replacements and warranty timing. Comments also mention neat installations and clear guidance through the process. Pricing is described as fair by some reviewers, with value tied to workmanship and follow-up support.

Google Review
J.R. Hubbard on Luminalt Solar

I'm so happy I reached out to Luminalt! We have a large solar set up on my shop and it wasn't working. The company that installed it went out of business an we have been stuck in limbo. I reached out to Luminalt, got connected to Kayla and she set up an inpsection and got us going in the right direction!

Don't hire a smalll crappy company to help a buddy for something this important! I did, and I regret it.I'm glad to have a company helping me now that is established, been around for a long time and the people are amazing!! 6 out of 5 stars!

PS: Jesse and Eddy were the technicians that came out to our shop and there were more than helpful, and patient with us. Hats off to a great company!

Google Review
George Eddy on Luminalt Solar

We purchased our solar panel array (13 panels) from Luminalt who also installed it - now 10 years ago. The inverter started issuing 'electric arc fault' messages about a year ago throwing the system off line.They were able to correct it at the time. Then toward the end of '25 the inverter issues multiplied to the point that it was felt it needed to be replaced. To their credit Luminalt was able to get that done days before the warranty expired.

Then the replacement (newly refurbished) started showing fault issues within 24 hours but Luminalt came right back the next day and isolated the problem to a separate wiring harness box. They replaced the key wires and the system has been up and running ever since.

To sum it up the Luminalt staff are a knowledgeable and friendly group who take their service responsibilities seriously. We are now exploring battery storage options with them as well.

Google Review
Dave Page on Luminalt Solar

We had Luminalt Solar install 29 solar panels on our Victorian in Bernal Heights ten years ago. We’re thrilled with the installation and savings on our PG&E bill every month! Our service rep, Kayla, is exceptional in every way! If we ever have any issues we email her and she always replies promptly, professionally and always goes above and beyond to solve any and every issue we have! Kayla is without a doubt the best service rep we have ever encountered in any business! Five Stars! ??????????

Google Review
Jonah Klein on Luminalt Solar

An excellent choice for your solar installation. A great team -- we were very impressed with their work!

Google Review
Miguel Cancino on Luminalt Solar

I had a fantastic experience with the Luminalt Solar team. They did a great job installing my solar system, with impressive attention to detail, and at a good price. I’ve been loving the system ever since! What really stood out to me, though, was how they went above and beyond. I had some questions about a completely different solar setup my parents have—with no business for them— and without hesitation, the team took the time to answer everything thoroughly. They really care about helping, even when it’s outside the scope of the job. All around, they’re good people who deliver great service. Highly recommend!

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Frequently Asked Questions

They install solar for homes and small commercial properties, and they service existing systems. Typical work includes system design, permitting, installation, and troubleshooting. They can assist with components such as inverters and monitoring. Scope and feasibility are confirmed during a site assessment.

Reviews indicate they have helped owners whose original installer is no longer available. They can inspect the system and advise on repairs or replacements when needed. Availability depends on equipment type and parts access. Contact them to review your setup and options.

Timelines vary with roof condition, permitting, and equipment availability. After design approval, installation itself is often completed within days, followed by inspections and utility interconnection. The team provides schedule updates throughout the process. Exact timing is confirmed after a site visit.

They offer troubleshooting and can review monitoring alerts and production issues. Maintenance needs depend on the system and site conditions. If hardware replacement is required, they discuss parts options and next steps. Ongoing support is coordinated through their service department.

You can start by contacting the office with your address and recent utility bills. They’ll assess the site, discuss goals, and prepare a proposal with equipment and estimated production. The quote includes installation scope and permitting details. Communication continues through each step to finalize the plan.
 Verified Listing

Opening Hours


  • Monday 8:30 AM – 5:30 PM
  • Tuesday 8:30 AM – 5:30 PM
  • Wednesday 8:30 AM – 5:30 PM
  • Thursday 8:30 AM – 5:30 PM
  • Friday 8:30 AM – 5:30 PM
  • Saturday Closed
  • Sunday Closed

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Business Details


Business Rating
4.70 (21 reviews) FeaturedPro Business
Address
10 Carolina St, San Francisco, CA 94103
Phone
Business Type
service

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