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Advanced Conservation Systems is a gamble you shouldn't take. One homeowner discovered toxic gas spewing into their garage from a botched water-heater install, then paid $606 out of pocket to fix it while the company ghosted their calls and held onto rebate paperwork worth $1,000. Another watched water gush down their roof from a brand-new pool system, only to be told they'd wait behind 10 other emergencies for a Friday-only house call. We found a troubling split in the data. While 30 reviewers praised the installation crew's workmanship, 12 others flagged serious quality problems, including flooding through a roof, stucco left unfinished for over a year, and appliances damaged by power surges. Communication fared even worse. Responses arrive late or not at all, and when problems surface, customers describe being passed around with no one taking ownership. One reviewer spent two months trying to reach anyone at the company about removing panels for a roof replacement and never heard back. If reliability and accountability matter to you (and they should), keep shopping.
If you're willing to risk contractors who leave holes in your stucco for 12 months and ignore your calls when their work goes wrong, go ahead. But we'd recommend exploring installers with consistent follow-through and fewer repair horror stories.
Chris A hired the company in 2022 for a residential solar install and ended up with a project that went badly wrong. He discovered crews left debris scattered across his yard, had to have the stucco redone after work around the electric panel, and dealt with water flooding through the roof into his garage. A neighbor who had been planning to sign up changed his mind on the spot after seeing the damaged stucco following the panel replacement and blurted, "Noooooo way." The detail that sticks is not the equipment but the poor cleanup and visible exterior damage that cost them a nearby referral.
Aaron K spent more than two months trying to reach ACS after they installed solar panels on his home. He called at all hours and left voicemail after voicemail; when he finally connected with someone he was promised a salesperson would call back, but that callback never happened. When he needed to re-roof the house he phoned again to ask whether ACS would remove and reinstall the array or if he could pay them to handle it — he got no reply. What stood out was the complete lack of post-installation support: repeated outreach produced silence precisely when he needed coordination for a major home project.
Anderson B. contracted the company in August 2021 to install rooftop electric panels, pool‑heating panels, and a tankless water heater at his home. When the crew finished, he discovered the tankless unit had been installed with its exhaust pipe exposed, venting toxic gas into his car garage. He hired a licensed plumber to correct the installation and paid $606 out of pocket. The installer never provided invoices for the equipment, so he could not claim a $1,000 SoCalGas rebate; by the time he pursued the paperwork the rebate window had closed. The company stopped answering his phone calls and emails while he continued requesting reimbursement and the missing invoices. The bottom line: he ended up with an emergency repair bill, a lost $1,000 rebate, no equipment invoices, and no response from the installer.
Passed screening
Passed screening
Among the longest-standing installers in the market.
Excellent BBB standing. Strong complaint resolution.
Reviews were posted naturally over time.
A valid contractor license is on record.
Anderson B. contracted the company in August 2021 to install rooftop electric panels, pool‑heating panels, and a tankless water heater at his home. When the crew finished, he discovered the tankless unit had been installed with its exhaust pipe exposed, venting toxic gas into his car garage. He hired a licensed plumber to correct the installation and paid $606 out of pocket. The installer never provided invoices for the equipment, so he could not claim a $1,000 SoCalGas rebate; by the time he pursued the paperwork the rebate window had closed. The company stopped answering his phone calls and emails while he continued requesting reimbursement and the missing invoices. The bottom line: he ended up with an emergency repair bill, a lost $1,000 rebate, no equipment invoices, and no response from the installer.
Jim had an ACS solar system installed with his pool years ago, and the single most striking thing he experienced was how quickly the panels could heat water: on one spring afternoon his spa rose from 56°F at 10:00 a.m. to 96°F by 1:30 p.m. using only solar heat. On hot summer days the system would easily add about 8°F to the pool, though nights could pull 6°F away unless a cover was used — he figures a cover would retain roughly 80% of the gains. With propane topping $4.49 a gallon that year, he appreciated not having to fire the heater. A harsh winter when temperatures hit 9°F did cause a leak, but ACS technicians came out and repaired it; he describes the techs as very nice and top notch. Where the experience soured was with management and contract handling: the company owner tried to tack on an extra 10% because the pool took more than two years to build, despite a $5,000 deposit that had been sitting with them, and he had to escalate the matter to corporate to get it settled. He also found ACS’s winterization pricing high (though he acknowledges their overhead) and now does many of his own minor solar repairs. In later updates he expressed hope that local customer service had,/
Jim had an ACS solar system installed alongside his pool about six years ago. After a winter that plunged to around 9°F a leak developed; ACS came out, fixed the leak, and Jim found the field technicians consistently top notch. He discovered the system can heat aggressively — on April 6, 2014 he started the day with an outside temperature of 65°F and a pool at 56°F, and by 1:30 p.m. the spa was up to 96°F using only solar heat (outside temp 76°F), a roughly 12°F-per-hour jump he still cites. On hot summer days the pool can gain about 8°F, but it can also lose roughly 6°F overnight unless covered; with a cover he estimates retaining about 80% of heat gains, which made avoiding propane (he paid around $4.49/gal that season) a real saving. Offsetting the strong performance, he ran into communication and billing headaches: a $95 bill showed up almost a month later (May 7, 2014) and he had to wait for a return call from Ann, ultimately escalating one issue to corporate. He also remembers the pool-build phase poorly — the owner tried to tack on 10% because the job stretched over two-plus years and resisted honoring the original contract, a dispute tied to about $5K that had been paid up.