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Solar TuneUp reviews
• updated APR 10, 2026Loading map...
The Verdict
Solar Tuneup is the rescuer you call when your original installer vanishes and your panels stop working. We analyzed reviews spanning multiple years and found the same story over and over: people discover their installer went out of business, panic when they realize nobody will touch their system, then find Justin. In one case, a homeowner's inverter died and Justin not only diagnosed it but walked the warranty claim through the manufacturer and came back weeks later to install the replacement part himself. The pattern that stood out most was his refusal to upsell. 48 reviewers mentioned fair pricing with zero complaints about inflated quotes, and we found multiple stories of him walking customers away from expensive projects that didn't make sense for their situation (he returned one customer's deposit after determining their house layout would make battery installation prohibitively complex). The second distinctive strength is follow-through on orphaned systems. 73 reviewers praised his diagnostic skill, often mentioning he'd repaired systems 8 to 11 years old that other companies refused to touch. He provides before-and-after photos of cleanings, walks roofs before jobs to plan logistics, and registers replacement parts with monitoring platforms so warranty coverage continues. One reviewer joked that if Justin could walk on water it wouldn't surprise them, which feels about right given he revived a six-month-dead Sunpower system in a single day.
If you need someone to fix, maintain, or resurrect a solar system and your original installer is unreachable or out of business, Solar Tuneup is your best option. Justin won't try to sell you a new roof when your panels just need cleaning.
3 Stories That Stood Out
This homeowner first met Justin in 2021 when several Enphase panels went offline on a ranch-style property. Justin turned up, quickly diagnosed faulty inverters and got the system running again — and what stuck with them was not just his technical know-how but how straightforward and honest he was, a sharp contrast to previous encounters where other installers pushed bigger, unnecessary jobs like roof replacements to pad the bill. In 2025 they called him back to explore adding batteries. Justin walked the property, patiently explained options without pressure, and spent many hours on his own dime answering texts, emails and researching possible solutions. Together they discovered the house layout created complications that would make a battery retrofit more expensive and awkward than the original idea. Rather than push the sale, they mutually decided to drop the project; Justin immediately returned the deposit and stayed friendly throughout. The detail that lingers is simple: he invested unpaid time to be helpful and then promptly refunded money when the job didn’t make sense — a rare combination of technical skill and customer-first honesty.
Kim T. discovered her solar array had stopped producing power when her electricity bill arrived much higher than expected. She tried to contact the original installers only to learn they were out of business, so she searched Yelp and found Solar Tuneup. She reached Justin, who answered quickly, scheduled an inspection, and afterward walked her through his findings in straightforward language: the inverter was dead. He called the manufacturer, ordered a replacement, tracked the part over the following weeks, then came back to install it. Prices felt reasonable compared with other options, but what set the experience apart was Justin’s follow-through — clear explanations, proactive coordination with the manufacturer, and returning to finish the job.
Alice discovered one of the microinverters on her rooftop system — originally installed by GCI Solar in 2014 — had failed after about 11 years, leaving one panel with no output for months. She confirmed through Enphase monitoring (the phone app and web portal) and received a replacement microinverter from Enphase under warranty. Faced with needing an installer, she first waited over three weeks for a pricey estimate from another company, then reached out to Justin at Solar Tuneup in Orange, CA. Justin recognized GCI’s original work, offered to both install the new microinverter and clean the array, and promised to register the replacement with Enphase so the correct serial would appear in her monitoring. He scheduled the job for the next Monday, arrived with Apollo that morning, and completed the install and panel cleaning with clear communication, professionalism, and a reasonable charge. The panels came away clean, the previously dead panel began producing again, and the monitoring showed the new unit properly registered — the detail that really set the job apart was Justin handling the Enphase registration so the system’s monitoring stayed seamless.
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How We Got To Trust Score 99
Clean Record
Unauthorized Activities
Passed screening
Misleading Claims
Passed screening
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Serving customers for 8 years
BBB Rating: A+
Excellent BBB standing. Strong complaint resolution.
Natural Review Patterns
Reviews were posted naturally over time.
What You Can Expect
Luis turned to Solar Tuneup to refresh a rooftop system that had been up for 10 years, and he ended up with panels that looked like new. He found the crew extremely professional and efficient throughout the visit. The technicians worked quickly and left the installation looking refreshed and tidy. What stood out most was that the excellent price delivered a noticeably dramatic improvement to a decade-old array.
This homeowner first met Justin in 2021 when several Enphase panels went offline on a ranch-style property. Justin turned up, quickly diagnosed faulty inverters and got the system running again — and what stuck with them was not just his technical know-how but how straightforward and honest he was, a sharp contrast to previous encounters where other installers pushed bigger, unnecessary jobs like roof replacements to pad the bill. In 2025 they called him back to explore adding batteries. Justin walked the property, patiently explained options without pressure, and spent many hours on his own dime answering texts, emails and researching possible solutions. Together they discovered the house layout created complications that would make a battery retrofit more expensive and awkward than the original idea. Rather than push the sale, they mutually decided to drop the project; Justin immediately returned the deposit and stayed friendly throughout. The detail that lingers is simple: he invested unpaid time to be helpful and then promptly refunded money when the job didn’t make sense — a rare combination of technical skill and customer-first honesty.
Brett ended up getting his solar system back online in the span of a single week after the panels on his home stopped working. Justin and the SolarTuneUp crew moved quickly, came out to assess the problem, cleaned the panels, and got everything running again without dragging the job out. What stood out most was Justin’s straightforward approach: he knew exactly what the system needed and never tried to push extra work that wasn’t necessary. By the time they left, the repair had been handled cleanly and efficiently, with the system restored instead of replaced or overcomplicated.
Robert Varo has relied on Justin for solar work at his home for seven years, repeatedly calling him back rather than looking elsewhere. He watched Justin arrive on time, treat each visit with courtesy and professionalism, and complete projects with consistently noticeable quality. Over that stretch the relationship felt dependable—more like a trusted craftsman than a one-off contractor. The detail that kept him coming back was simple but rare: punctual, professional service paired with first-rate workmanship.
James found himself dealing with a solar array that wasn’t producing much energy, and the company stepped in with an inspection that got to the bottom of it without a big bill attached. He was especially struck by how quickly everything moved: he scheduled the visit on Saturday and had a crew out on Monday. Along with the diagnosis, they left him with photos and a report, turning a vague performance problem into something concrete he could act on. The communication stayed smooth throughout, and the fast response made the whole process feel easy rather than stressful. He ended up with a team he plans to call back for panel cleaning and routine maintenance.
James brought in Solar Tuneup to inspect the solar panels on his home after the system had been producing far less energy than it should have. For a reasonable price, the crew tracked down the problem, then followed up with clear notes and photos that showed exactly what they found. Scheduling was simple, and the communication after the visit stood out just as much as the inspection itself. They even stayed involved long enough to help him work through troubleshooting with the manufacturer, which turned a frustrating underperforming system into a fix with a paper trail he could understand.
Jeanne found herself with a home solar system in need of repairs about 8–9 years ago after the original installer closed, and she had nowhere to turn. Justin stepped in, willing to help and bringing the practical knowledge required to get the system back on track. She kept relying on him for follow-ups and fixes, and eight years later he remains her "go to guy." What stuck with her was that he didn’t walk away when the original company folded — he stayed available and reliable over the long haul.
Thomas called in for help with an existing solar system and ended up with a remarkably fast turnaround. A technician arrived right on schedule, quickly tracked down the problem, and had it fixed within two hours, turning what could have been a drawn-out service call into a simple, efficient visit.
Tony was dealing with a solar inverter problem and kept running into contractors who wanted a hefty fee just to show up and diagnose it. Justin from Solar Tuneup took a different approach: he came out within a few days, looked over the issue without demanding money up front, and only asked for payment after the problem was fixed. That combination of quick turnaround and no-pay-until-resolved service made the experience stand out as the kind of straightforward local help that’s hard to find when a solar system goes down.
Long-term Satisfaction
Long-term satisfaction for Solar TuneUp holds steady at 5.0 ★. This is better than 76% of installers we looked at.
Long-term reviews carry the most weight in our methodology because they are most representative of what you should be paying for: a system that will perform for years.