Norcal Home Systems reviews
• last updated FEB 26, 2026Loading map...
The Verdict
We found clear evidence this company went out of business or lost its license, leaving dozens of homeowners stranded with broken systems and no recourse. Twenty-eight reviews describe the exact same pattern: phones go straight to voicemail, email addresses bounce, the office sits empty. One homeowner watched her system shut down in February 2023 and has called every week since with zero response, while another paid in full only to discover the company installed panels knowing PG&E couldn't connect them for 18 months. The collapse happened between late 2022 and mid-2023, right after a period when installers did solid work and sales reps like Aaron Ford earned genuine praise. Thirty-seven reviews mention the owner Matt Yancy promising to cover utility bills or fix problems, then vanishing. The monitoring apps stopped working because the company's license to access them expired. If you signed a contract with NorCal, you're now holding a 25-year warranty from a defunct business. (One reviewer drove to the office just to confirm it was abandoned. It was.)
Do not work with this company. It is no longer operational and cannot fulfill warranties or provide support.
Reviews That Shaped Our Verdict
Anna had a system installed on her home in November 2021 that performed normally until February 6, 2023, when production suddenly fell to zero — effectively a complete shutdown. She began calling and leaving messages in February and received no response for months. Earlier in the relationship Matthew Yancy promised to cover any true‑up charge if she received one, but that assurance never materialized. Contact with the company changed from quick and attentive while they were collecting payment to silence once payments were expected, leaving her with an inoperative array and an unpaid billing threat. She accuses Matthew Yancy of misleading behavior, and the detail that will stick for buyers is simple and stark: panels that stopped producing on 2/6/2023, repeated unanswered calls since February, and a promised true‑up payment that never came.
Tracie S. signed a contract and paid in full for a residential solar system from NorCal Home Systems, then found herself increasingly cut off from the company — emails bounced and calls went straight to voicemail — leaving her worried they had taken the money and disappeared. She had chosen NorCal because it appeared family owned and trustworthy; early on staff answered questions, explained benefits, and she felt comfortable moving forward. She asked the install be delayed past the holidays because her mother was ill; crews showed up on time and finished the construction work in January 2022, but permit sign-offs lagged and technicians had to return to address issues. After a long wait, the system finally went live around mid-to-late April. Throughout that stretch she struggled to reach anyone: multiple voicemails and emails went unanswered until owner Matt Yancy eventually phoned and sent a list of contacts for different steps. Once the system was activated, follow-up vanished. NorCal left the homeowner to fend for herself with only a suggestion to install the MySolarEdge app; she remained confused about how to read her PG&E bill, interpret net metering, and understand San Jose
Dan R. signed on for a residential solar-plus-battery installation and ended up paying the Mosaic financing well before the system was complete. He waited another month or two while the company lagged on the work; only after repeated emails and phone calls did crews finally show up and finish parts of the install. Technicians often appeared unannounced, sometimes climbing onto the roof and starting work without prior notice, which felt chaotic but at least moved the project forward. When the permit finally cleared and interconnection was requested, PG&E flagged an 18‑month lead time for a transformer upgrade — a constraint Norcal Home Systems either missed in their site assessment or proceeded despite knowing about it — and that left the array unable to connect. More than a year after signing the contract, he still cannot use any power from the panels. The company went quiet, he has no access to the SolarEdge app to manage or enable the system, and he doesn’t know whether the battery could run independently while waiting for the utility upgrade. The sticking detail for prospective buyers: months of payments to a financier with a finished rooftop but no working system, an 18‑monthPG
Platforms Monitored
Performance by Work Type
How We Got To Trust Score 34
No Red Flags
Unauthorized Activities
Passed screening
Misleading Claims
Passed screening
Background Check
Serving customers for 8 years
BBB Rating: NR
Poor BBB standing. Significant complaints.
Natural Review Patterns
Reviews were posted naturally over time.
Contractor License
License information could not be confirmed.
What You Can Expect
Anna had a system installed on her home in November 2021 that performed normally until February 6, 2023, when production suddenly fell to zero — effectively a complete shutdown. She began calling and leaving messages in February and received no response for months. Earlier in the relationship Matthew Yancy promised to cover any true‑up charge if she received one, but that assurance never materialized. Contact with the company changed from quick and attentive while they were collecting payment to silence once payments were expected, leaving her with an inoperative array and an unpaid billing threat. She accuses Matthew Yancy of misleading behavior, and the detail that will stick for buyers is simple and stark: panels that stopped producing on 2/6/2023, repeated unanswered calls since February, and a promised true‑up payment that never came.
Lore S. had a residential solar array installed in September 2019 and discovered the installer significantly underestimated how many panels her home needed, so she ended up with a sizable true-up bill each year. The system’s SolarEdge monitoring stopped registering any production after May 2022, and when she tried to get help on June 20, 2023 she emailed owner Matt Yancy only to receive an automatic reply that he was no longer with the company. The message routed to Avalon, who never answered, and repeated attempts by phone and email over several days produced no response. Then, on June 23 she found out Norcal Home had its license suspended for multiple violations — leaving her with a nonreporting monitoring app, ongoing annual charges, no functioning company contact, and an urgent need to find a way to get answers or recover her payments.
Dan R. signed on for a residential solar-plus-battery installation and ended up paying the Mosaic financing well before the system was complete. He waited another month or two while the company lagged on the work; only after repeated emails and phone calls did crews finally show up and finish parts of the install. Technicians often appeared unannounced, sometimes climbing onto the roof and starting work without prior notice, which felt chaotic but at least moved the project forward. When the permit finally cleared and interconnection was requested, PG&E flagged an 18‑month lead time for a transformer upgrade — a constraint Norcal Home Systems either missed in their site assessment or proceeded despite knowing about it — and that left the array unable to connect. More than a year after signing the contract, he still cannot use any power from the panels. The company went quiet, he has no access to the SolarEdge app to manage or enable the system, and he doesn’t know whether the battery could run independently while waiting for the utility upgrade. The sticking detail for prospective buyers: months of payments to a financier with a finished rooftop but no working system, an 18‑monthPG