Alpha Solar Electric reviews
• last updated FEB 26, 2026Loading map...
The Verdict
This company's track record should make you think twice. We found a troubling split: older reviews celebrate fast installs and friendly service, while recent customers report vanishing acts when systems break. One homeowner called daily for weeks during the rainy season just to fix a roof leak from the original install, another waited five months for a replacement inverter while racking up $600 in extra utility bills that were never refunded. The pattern is stark: 11 reviewers describe Calin becoming completely unresponsive after payment, ignoring calls and texts while systems sit dark. In one case, a customer filed a small claims suit just to get promised reimbursement. Even success stories show cracks: 41 reviewers praised the actual installation work, but 11 mentioned post-sale support problems serious enough to involve warranties the company wouldn't honor. If you're weighing a bid from Alpha Solar, know that the risk isn't the install itself. It's what happens six months later when you need them and they've stopped picking up the phone.
If you can't afford to hire a second company to fix problems the original installer won't return calls about, skip this one. The workmanship scores look solid, but nearly one in ten customers ended up stranded with broken systems and no response.
Reviews That Shaped Our Verdict
Rene H. had a rooftop solar system installed by Alpha Solar in 2017 and enjoyed solid performance at first — enough to prompt a positive review. Fifteen months after installation an inverter failed; technicians promised a quick fix, but getting the system back took three weeks. About sixteen months later another inverter died and repairs stretched to more than a month. By 2023 the array was down again, and Augustin Calin Mogojan made several promises to resolve the problem but failed to follow through. After six weeks of waiting for him to show up and restore service, they hired a different solar company to repair and monitor the system. The key takeaway: if you see the name Augustin Calin Mogojan (DOB 3/3/1969) or his association with Alpha Solar in your contract, proceed with caution — the follow-up service and responsiveness that mattered to this homeowner did not materialize.
Court G. discovered the inverter on his year‑old solar system failed, and what should have been a straightforward repair turned into a months‑long ordeal. They waited nearly five months for anyone from the company to show up while calls went unanswered and staff offered repeated excuses. When technicians finally arrived, they installed the wrong inverter, and it took another two months before the correct unit was fitted. Court is out about $600 that the company promised to reimburse months ago but never paid; frustrated, they filed a small‑claims case that has been delayed by COVID‑19 lockdowns. They kept emails and texts documenting the company’s promises and expect those records will help when the court moves forward. Court concluded the company isn’t what it used to be and warns prospective buyers to be prepared to chase repairs and refunds — and to save every message if they want any leverage later.
Robin S. had a residential solar array installed by Alpha Electric about four years ago and walked away from the initial job impressed — the install went smoothly and Calin was especially helpful. A year ago she ran into two problems during the rainy season: a roof leak through one of the mounting points and a panel that began producing only about two‑thirds of the output of the rest, a drop she first noticed in September 2019. Because other installers wouldn’t touch another company’s work, she kept calling every day until she finally reached Calin; he sent a tech who fixed the leak and inspected the underperforming panel in December 2019, cleaned the connections and told her to report back if problems persisted. After that, she tried calling, texting and emailing repeatedly and received no response whatsoever. A different installer later pulled her Enphase production data and concluded the panel itself was failing, but would charge $500–$800 just to diagnose it. Calin had assured her the entire installation — not just panels and microinverters — was covered by warranty, so being unable to get any reply has effectively left her without the installer support she was promised. The up
Platforms Monitored
Performance by Work Type
How We Got To Trust Score 66
Clean Record
Unauthorized Activities
Passed screening
Misleading Claims
Passed screening
Background Check
Serving customers for 14 years
Among the longest-standing installers in the market.
BBB Rating
Not BBB rated.
Natural Review Patterns
Reviews were posted naturally over time.
Contractor License
License information could not be confirmed.
What You Can Expect
Rene H. had a rooftop solar system installed by Alpha Solar in 2017 and enjoyed solid performance at first — enough to prompt a positive review. Fifteen months after installation an inverter failed; technicians promised a quick fix, but getting the system back took three weeks. About sixteen months later another inverter died and repairs stretched to more than a month. By 2023 the array was down again, and Augustin Calin Mogojan made several promises to resolve the problem but failed to follow through. After six weeks of waiting for him to show up and restore service, they hired a different solar company to repair and monitor the system. The key takeaway: if you see the name Augustin Calin Mogojan (DOB 3/3/1969) or his association with Alpha Solar in your contract, proceed with caution — the follow-up service and responsiveness that mattered to this homeowner did not materialize.
In Fullerton, CA, Roy and Phyllis had Tom put their solar system on the roof back in 2017, and they trusted him enough to call him again when they decided to add three Enphase batteries. He returned, gave the most competitive quote, and the battery installation went smoothly — no surprises or delays. They walked away impressed enough to call him a “Rock Star” and still recommend reaching him at 951-522-0822 for any solar or battery needs.
Court G. discovered the inverter on his year‑old solar system failed, and what should have been a straightforward repair turned into a months‑long ordeal. They waited nearly five months for anyone from the company to show up while calls went unanswered and staff offered repeated excuses. When technicians finally arrived, they installed the wrong inverter, and it took another two months before the correct unit was fitted. Court is out about $600 that the company promised to reimburse months ago but never paid; frustrated, they filed a small‑claims case that has been delayed by COVID‑19 lockdowns. They kept emails and texts documenting the company’s promises and expect those records will help when the court moves forward. Court concluded the company isn’t what it used to be and warns prospective buyers to be prepared to chase repairs and refunds — and to save every message if they want any leverage later.