Precis Solar reviews
• last updated FEB 26, 2026Loading map...
The Verdict
This company will pitch you on a premium SunPower installation, but you'll be rolling the dice on whether you get a functioning system and actual support after the sale. We analyzed over a hundred reviews and found a troubling pattern: 45 customers describe system failures, no-shows, and billing for panels that don't produce power. One homeowner in 2024 detailed how her system never offset her bills despite 76 panels, then watched the company abandon her by email mid-troubleshooting. Another paid $2,500 out of pocket after the install crew reversed polarity on 12 panels, tanking production for two months. Even customers who liked their install crews (48 mentioned solid workmanship) report communication blackouts during permitting delays and unfulfilled performance promises from the sales team. The bright spot is Tim Marquez, the sales rep named in 63 positive reviews for clear explanations and follow-through. But one salesperson can't offset a pattern of non-producing systems and support that disappears when problems surface. If you want a solar company that'll chase down inverter failures instead of forwarding you to a defunct Chinese manufacturer, keep looking.
If you're willing to gamble on a potentially multi-thousand-dollar repair tab and months of troubleshooting for panels that may never hit their promised output, Precis might quote you competitively. But if you'd rather avoid paying both a solar loan and utility bills simultaneously while waiting for callbacks that never come, explore other installers.
Reviews That Shaped Our Verdict
On November 22, 2019 Phillip agreed to have SunPower by Précis install what was presented as an 18,467 kWh system for $44,733.60. He had already paid off 40 panels on the garage through another company, and Précis planned to add 36 more panels for a total of 76. Tim Marquez handled the sale; because Phillip is a retired contractor he explicitly asked that the team measure the load from his pool and pond pumps so the system would actually offset his usage. Marquez walked the yard with him, looked at the pool equipment, and promised the installers were industry professionals — even suggesting Phillip could expect, at most, about a $200 monthly bill or possibly nothing at all. After the array went live, the reality diverged sharply: Southern California Edison statements started arriving in the $500–$900 range each month, on top of roughly $400 a month for the solar loan. Phillip spent a year pressing Précis for fixes. Technicians eventually concluded the home “was probably using too much power” and identified failing microinverters that needed replacement. Even after replacements, the microinverters didn’t register properly. Then Fran from SunPower by Précis emailed on January 11, 202
Larry T. had Sunpower by Precis install his Sunpower system back in 2016. When his asphalt shingle roof needed replacement in 2022, he discovered the roof work would require the solar panels to be temporarily removed and reinstalled — and that he was required to use a Sunpower‑approved contractor. Because no other approved company would take the job, he ended up forced to use Sunpower by Precis, which charged roughly double the quotes he had gotten from non‑approved installers. The crew finished the panel reinstallation late on 10/31/22. The roofing contractor then inspected the job and discovered serious damage to the new roof that required about $1,500 in repairs; Sunpower by Precis initially refused to reimburse that cost. A month later, on 12/01/22, he checked system production and found November output at only about one‑third of what it should have been. A technician from Sunpower by Precis came on 12/05/22 and found 12 of the 18 panels wired with reversed polarity; the tech corrected the wiring, but the lost production through November and December cost roughly $1,000. That, plus the $1,500 roof repair, amounted to $2,500 — which Sunpower by Precis also refused to cover at.
Kuangwei went through months of delays from permitting and weather before his system finally went live on May 11, 2023: a 28-panel rooftop array delivering 11.5 kW peak and four Tesla Gen2 Powerwalls that together provide about 54 kWh of storage. Installers, engineers, and managers stuck with the project through the wait, and when commissioning happened everything powered up and worked — he was ecstatic to find the whole setup running and able to charge his Tesla and supply the home. Early on he discovered a hiccup: the critical backup load sheet left his energy-efficient mini-split AC/heater off the list. The manager explained that crews normally exclude air conditioning from backup because traditional HVACs draw high startup currents that stress batteries. Kuangwei pushed back, explaining he had already installed a soft-start, battery-friendly mini-split and had the equipment and the math to prove the system could handle it. He confirmed that with the mini-split installer and SunPower’s engineer, and SunPower by Precis returned a month later to revise the backup configuration at no charge. The result: he ended up with a system that runs the entire house, including the mini-spli
Platforms Monitored
Performance by Work Type
How We Got To Trust Score 49
No Red Flags
Unauthorized Activities
Passed screening
Misleading Claims
Passed screening
Background Check
Serving customers for 15 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
Corey first had Precis put a 12-panel rooftop array on their home two and a half years ago, and when the household added two electric vehicles last year they called Precis back to tack on six more panels. They returned for two simple reasons: the company proved trustworthy and reliable. Throughout both jobs they discovered that what Precis promised about the system and the installation process matched reality—everything turned out to be accurate—and the crews delivered tidy, high-quality workmanship. Staff stayed professional and attentive, and when someone wasn’t immediately reachable calls were returned promptly. The detail that mattered most to them was consistency: clear, accurate information up front and follow-through on it, so expanding to an 18-panel setup felt like a straightforward, confidence-building upgrade rather than a gamble.
Kathleen B. bought a residential solar system from Precis in 2018, and six years later it’s still delivering more power than she expected. From the first contact she encountered friendly, knowledgeable people, the installation went off without a hitch, and the finished array looks striking on her roof. Precis over-delivered on performance, and each year the system generates enough credits that SDG&E ends up sending her money — a payoff she openly enjoys spending.
On November 22, 2019 Phillip agreed to have SunPower by Précis install what was presented as an 18,467 kWh system for $44,733.60. He had already paid off 40 panels on the garage through another company, and Précis planned to add 36 more panels for a total of 76. Tim Marquez handled the sale; because Phillip is a retired contractor he explicitly asked that the team measure the load from his pool and pond pumps so the system would actually offset his usage. Marquez walked the yard with him, looked at the pool equipment, and promised the installers were industry professionals — even suggesting Phillip could expect, at most, about a $200 monthly bill or possibly nothing at all. After the array went live, the reality diverged sharply: Southern California Edison statements started arriving in the $500–$900 range each month, on top of roughly $400 a month for the solar loan. Phillip spent a year pressing Précis for fixes. Technicians eventually concluded the home “was probably using too much power” and identified failing microinverters that needed replacement. Even after replacements, the microinverters didn’t register properly. Then Fran from SunPower by Précis emailed on January 11, 202