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We recommend Luminalt without reservation. They installed SunPower panels on a three-story Victorian with a battery location problem that another installer gave up on after months of silence, then worked through fire code exceptions and got pre-approvals before installation so inspections sailed through. We analyzed reviews spanning over a decade and found 74 mentions of workmanship quality with only 3 complaints, and not a single negative word about their follow-up support even on systems they installed years ago. Two patterns stand out. First, their project managers don't vanish after the sale. When one homeowner's power went out on a Saturday, the service lead called back in five minutes and had an engineer at the house within 45 minutes to troubleshoot a downed PG&E line that had nothing to do with the solar install. Second, their crews finish early and clean obsessively. A four-to-five-day job with panels, a Tesla battery, and a car charger wrapped in three days, and the homeowner noted the installers swept and vacuumed daily instead of leaving lunch trash around.
If you want the cheapest quote, keep shopping. But if you want an installer who'll show up on a weekend to replace a fuse at no charge ten years after your install, or who'll navigate tricky fire code approvals instead of walking away, Luminalt is worth the premium.
Nicolas M. turned to Luminalt after a neighbor-recommended installer stalled on a difficult home solar-plus-battery project — that first company spent months procrastinating, went quiet, and ultimately said they couldn’t find a code-compliant spot for the battery. He reached out to Luminalt, and they dove into the problem instead of backing away. After several site visits, emails, and back-and-forths with DBI, the team identified a clever workaround tied to an apparent code exception, secured pre-approvals from the city and the fire department, and then proceeded with the install. Inspectors from both agencies signed off smoothly. He experienced clear, timely communication and a professional crew; Kyle, Zach, and Gen led a clean, seamless delivery. Nicolas rarely posts reviews, but the thing that stood out — that Luminalt solved the code puzzle, got the necessary pre-approvals, and delivered a fully permitted, inspected battery installation — earned his five stars.
Eric C. reroofed his house during the summer and, wanting to add solar, first reached out to SunPower because it was highly rated. That initial meeting left him uneasy: the rep avoided detailed answers about how panels were attached, and he discovered they fasten panels to roof studs with screws and then cover the penetrations with a chemlink sealant. His roofer — who was providing a 30-year warranty on the roof — warned that chemlink can allow water to creep under the seal over time and cause leaks, while SunPower’s construction warranty was only 10 years and the rep largely shifted the conversation to electricity savings. Concerned about shortening his new roof’s life, he took his roofer’s recommendation and hired Luminalt instead. Luminalt managed the project from start to finish — design, installation, inspections — so he didn’t have to stay heavily involved, and importantly they install SunPower panels themselves rather than outsourcing the construction. Permitting moved faster than expected: PG&E’s Permission to Operate arrived in under a week instead of the typical couple of weeks, and installers Nick, Kyle and Gen were singled out for professional, attentive work. He even推荐
Niki H. started out skeptical that a high-rated installer could really live up to the hype, but she and her husband chose to pay a bit more for the peace of mind of service after installation. They kicked things off with a thorough Zoom walkthrough that covered what the company would provide, how installation would proceed, and the expected costs and savings, then a project manager visited the house to map out the roof and garage layout. Told the job would take four to five days, they discovered the crew arrived on time Monday, masked, polite, and respectful; at least seven team members worked at the house each day, introduced themselves, and kept the site spotless — no lunch trash left behind, and the crew swept and vacuumed every evening while briefing the homeowners on progress before leaving. What stood out visually was the garage work: electricians left a tidy, almost deliberate-looking installation. The package included solar panels, a Tesla backup battery, and an EV charger, and the team wrapped the whole job in three days instead of the quoted five. The company also handled the city inspection appointment so the homeowners didn’t have to manage permits, and when a light had
Passed screening
Passed screening
Among the longest-standing installers in the market.
Not BBB rated.
Reviews were posted naturally over time.
License information could not be confirmed.
Dave had Luminalt Solar install 29 panels on his Victorian in Bernal Heights ten years ago. Over the past decade he’s been thrilled with the installation and with the monthly savings on his PG&E bill. Whenever a problem has come up he emails the company’s service rep, Kayla; she replies promptly and professionally and repeatedly goes above and beyond to fix whatever’s needed. He considers Kayla the best service rep he’s encountered in any business. Ten years later he still rates the experience five stars, and what he remembers most is how fast an email to Kayla turns into a real solution.
RJ had solar panels installed more than a decade ago on an off-grid cabin, and the same company recently came back to add a battery. They walked them through the new setup, answered questions clearly, and handled all the city paperwork even though the property is off-grid. What stood out was the continuity — the installer returned after ten-plus years and took care of the technical upgrade and the municipal red tape, leaving the owner with a simpler, more reliable off-grid system.
S J chose a local company to install an expensive solar system, expecting dependable performance. They discovered the installation itself was a disorganized mess. Even more frustrating, they found that the solar-generation and power-usage numbers in the app had been wrong for two years, which made the monitoring data useless. The company promised fixes and better project management, but follow-through never materialized and the issue remains unresolved. The panels themselves seem to work—though S J isn’t completely certain because the measurements are unreliable. What lingers is the gap between the “local” halo that sold them on the installer and the reality of an expensive system that still isn’t being tracked correctly after two years.