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Cosmic Solar reviews
• last updated FEB 26, 2026Loading map...
The Verdict
Cosmic Solar earns our top recommendation. We analyzed hundreds of reviews and found two patterns that matter: this company delivers expert work without drama, and their crews actually seem to enjoy what they do. In one case, a homeowner watched installers remove 24 solar panels, replace a 50-year-old roof down to the deck, then reinstall everything in under a week without a single miscommunication. We counted 437 mentions of careful workmanship and 492 compliments about how smoothly projects ran. The family-run team coordinates permits, rebates, and city inspections so tightly that timelines beat projections more often than they slip. We noticed installers routinely find creative routes for conduit through attics to avoid visible runs down siding, and one crew even helped diagnose a roof leak that turned out to be unrelated to their work. (They fixed it anyway.) The only hesitation: if you want the cheapest bid on paper, you may find it elsewhere.
If you value a clean install over rock-bottom pricing, Cosmic Solar is the contractor to call. You'll pay a fair rate for premium equipment and a crew that treats your roof like it's their own.
Reviews That Shaped Our Verdict
Sammy C. brought Cosmic Solar onto his ranch‑style house in 2018 after watching his electric bill climb toward $1,600 a month. He walked away from the process with no out‑of‑pocket cost and a plan that locked his electricity at $499 a month for the next 20 years; two years after installation he had saved more than $26,000 and still carried a credit balance with Edison. The crew measured his usage, laid out how many panels would be needed to offset the bill, signed a straightforward contract and completed a tidy, professional installation. Pey handled the sale with a low‑pressure, friendly approach, and the company’s follow‑up proved dependable: when a small roof leak appeared on the panel side, Sammy called and technicians arrived quickly. The leak turned out to be caused by a damaged shade sail, not the solar work, but Cosmic Solar helped anyway — Larry Schmidt came out twice to make sure the problem was fully resolved. The concrete takeaways that stuck with him were the zero upfront cost, the fixed $499 monthly payment, and the fast, accountable service when a post‑install issue cropped up.
Richard S hired Cosmic Solar and Roofing to tackle a major job on his more-than-50-year-old house: remove 24 solar panels, reroof down to the original roof deck, clean up and repair around a large skylight, fix compromised plywood, shiplap and fascia boards, then reinstall the panels. He discovered the project was handled by three coordinated teams—office managers Mary and Ashley, solar lead Johnny, and roofing lead Eddie—under owner Pey’s direction, and that seamless communication by phone, text and email kept everything moving without misunderstandings. The crew completed the entire scope in about a week, which Richard found remarkable given the age of the roof (25+ years) and the extent of hidden damage uncovered. He chose the CertainTeed Presidential Upgrade with the full warranty after speaking with CSR’s CertainTeed representative, Alex, and he personally verified the company’s licensing and insurance after CSR provided transparent documentation and encouraged him to check. He came away confident in CSR’s professionalism, and what stuck with him most was how smoothly the three teams coordinated to replace a quarter-century-old roof and reinstall two dozen panels while handing
Keith and his wife watched a local news report in early April that announced huge SDG&E rate hikes and the end of net metering 2.0, and the next morning they panicked and began calling solar companies. After interviewing several firms, they met Ken Davami from Cosmic Solar; in a 45-minute, no-pressure presentation Ken transformed them from confused to confident and won the contract. He immediately felt they were dealing with a top-tier team. Once the paperwork was signed, Ashley Alvarado became his go-to guide — fielding repeated calls about HOA and SDG&E submissions and patiently walking him through each step. Pey Shadzi, the operations manager and design specialist, then refined the panel layout to capture the sun’s path across their roof and squeeze maximum production out of the system. Installation unfolded over two hot days with installers Hector and CJ arriving early, working efficiently within the predicted timeframe, and keeping Keith informed about daily plans and progress. For the final electrical hookup, Cosmic sent master technician Javier Ortega, who tied together the SDG&E meters, the RMA and the Enphase inverter — then stayed two extra hours to be present for the
Platforms Monitored
Performance by Work Type
How We Got To Trust Score 98
No Red Flags
Unauthorized Activities
Passed screening
Misleading Claims
Passed screening
Background Check
Serving customers for 17 years
Among the longest-standing installers in the market.
BBB Rating: A+
Excellent BBB standing. Strong complaint resolution.
Natural Review Patterns
Reviews were posted naturally over time.
Licensed Contractor
A valid contractor license is on record.
What You Can Expect
A recommendation from a best friend of more than 50 years sent Bill Phillips to Cosmic Solar & Roofing when he decided to replace a 20‑year‑old roof and go solar. He opted for an all‑in‑one package that paired the solar array with a re‑roof done by Cosmic’s contractor, Davalos Roofing, a crew he described as top notch and not something he felt pushed into choosing. Everyone on the project listened to what he wanted and put it together the way he asked. After the first full year the system ran without issues and actually produced a bit more energy than the estimate, so he walked away with both a new roof and slightly better‑than‑expected solar performance. For a San Diego‑area homeowner looking to coordinate a roof replacement and solar install, that combined outcome is the detail he remembers most.
Ivan had a nine-year-old solar inverter on his home that wasn’t producing as much electricity as it should. He called Cosmic Solar and was referred to Khi in the Maintenance Department. Khi came out for a site evaluation, walked through the possible fixes, and together they concluded that replacing the inverter was the best course. Khi ordered the unit and kept him updated at every step. Javier carried out the install, programmed the new inverter, and the system began producing power again. What lingered from the experience was the clear communication from Khi and the smooth handoff to Javier — a concise, trouble-free replacement that restored the system’s output.
Deena Nelson chose Cosmic Solar for a residential solar install and worked directly with Jose. He guided her through the process, answered every question, and showed clear technical knowledge. The team arrived on schedule, moved quickly and professionally, and left a clean, well-done installation. She liked the result enough to send six or seven friends to Jose, and each of them ended up satisfied as well. Three years after the work was finished she can still call Jose with questions or concerns and he answers. The memorable part of her experience: the company didn’t vanish after the sale—Jose stayed available long afterward.