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Horizon Energy Systems shut down operations in 2018, leaving former customers without the warranty support they were promised. We found multiple reports from homeowners who'd been happy with their installations for years, only to discover that their 10-year service contracts meant nothing when the company vanished. One customer who'd installed panels in 2011 faced a dozen microinverter failures and couldn't get anyone to answer the phone. Another tracked down the business address to a house that sold in May 2018. Before the shutdown, early installations showed real attention to detail: crews color-matched exterior paint so the conduit wouldn't clash with the house, and one repeat customer came back for a second round of panels after four problem-free years. Reviews from 2012 through 2015 mention flawless systems, prompt crews, and quick no-cost replacements when inverters failed. But the company's disappearance erased that goodwill. Bruce Gordon's voicemail still picks up, but no one calls back.
If you're researching Horizon today, you're too late. The company appears to have closed in 2018, and former customers report zero support on systems that were supposed to carry 10-year warranties.
Duane H. had turned to Horizon Energy three times before — installations in 2013 and 2014 and warranty work in 2016 — because Bruce had always been prompt on calls and email. When his solar system died in August 2018, he discovered crickets: repeated calls and emails through August and September went unanswered, voicemail still carried Bruce Gordon’s voice but no company greeting, and the listed business address no longer looked like an operating storefront. He dug into mapping and real-estate clues: Bing Maps pointed to a house with the same phone number, and Zillow showed that house sold on 5/24/2018. With no response from Horizon, he ended up hiring another dealer to coordinate with the manufacturer and revive the systems. What lingered for him was the avoidable lack of closure — a longtime vendor gone silent while the business phone and online listings still hinted at life.
Regis hired the company to install a residential solar system in 2011 and signed a 10-year maintenance agreement. Over the years he encountered at least a dozen microinverter failures. When he reached out for service, the company stopped answering his calls and the promised support never materialized. He currently has three microinverters that are not working and ended up handling maintenance himself. The striking detail: a signed decade-long support pact that evaporated when it was needed, leaving failing inverters on the roof with no help from the installer.
Jordan hired Horizon to install a solar system in July 2011, and eight months later they were still impressed: the meter running backwards and the ability to check production on an iPhone became everyday pleasures. Before making that rather large investment they invited multiple companies to bid, and quickly saw the difference — one outfit relied on a cookie‑cutter price template and didn’t even climb onto the roof, while Horizon came prepared, went up on the roof, and delivered detailed, thoughtful work. Horizon arranged trustworthy referrals to get the roof inspected, listened to questions, and designed a solution that met both the household’s energy needs and its aesthetic concerns. That same thoroughness carried through the entire job: crews arrived on time, worked cleanly and efficiently, and hit every promised date. The detail that stuck with them was small but telling — after the install the team color‑matched the conduit to the house paint so the run into the electrical panel blended in, a touch that made it feel as if they’d installed the system on their own home. Having renovated many houses and dealt with lots of contractors, they put Horizon in the top tier of pros they
Passed screening
Passed screening
Among the longest-standing installers in the market.
Not BBB rated.
After moving into a new house, Vocal T. compared several bids for a rooftop solar installation; having had a rooftop system installed at a previous home more than five years earlier, they knew what mattered. They chose Horizon easily — the price, a top-of-the-line equipment configuration, and a straightforward, no-nonsense approach stood out. Bill, the installer, brought decades of valley experience (working on solar since the 1970s) and an intimate knowledge of systems that made the decision feel safe and practical. The crew completed the rooftop system to their satisfaction, and they walked away with a clean, high-end installation and the confidence that Horizon’s combination of price and experienced leadership delivered exactly what they wanted.
Diana invited a Horizon representative, Joseph Smith, to her home for a solar consultation and quickly learned her electric bill didn’t meet the company’s requirements. Even so, she came away impressed — Joseph handled every step with professionalism and speed, walking through measurements and the install process so smoothly that it felt effortless. She liked him enough to pass his name along to neighbors and her mother, and wished she could have done more to help him land work because of the care he took. The standout detail was Joseph’s combination of efficiency and polish; that experience is why Diana views Horizon as a strong company to do business with.
Regis hired the company to install a residential solar system in 2011 and signed a 10-year maintenance agreement. Over the years he encountered at least a dozen microinverter failures. When he reached out for service, the company stopped answering his calls and the promised support never materialized. He currently has three microinverters that are not working and ended up handling maintenance himself. The striking detail: a signed decade-long support pact that evaporated when it was needed, leaving failing inverters on the roof with no help from the installer.
Robert K. hired Horizon Energy Systems to install solar on his home five years ago and ended up with a system that still performs flawlessly today. He experienced a thoughtful design process and a clean, professional installation. Five years of uninterrupted, trouble-free operation is the detail that stuck with him.
Kristine L. had Horizon put 29 panels on her roof about four years ago, and after watching the system perform she invited them back to add 11 more panels. She found the crew consistently professional, kept the job site clean at the end of every day, and completed the expansion without drama. When one of the inverters failed, Horizon returned quickly and replaced it at no charge, reinforcing the sense that they stand behind their work. With panel prices having dropped since the original install, she decided the additional 11 panels made clear financial sense — leaving her with a 40-panel array and confidence in the company’s service and warranty follow-through.
Douglas reached out to Horizon for a home solar estimate and got a response the next day; Bruce followed up with a site visit and came back with an improved estimate. After Douglas gave the go‑ahead, the crew began work in about three weeks and finished the rooftop install in five days — the 22‑panel system with micro‑inverters was producing power as soon as the install wrapped. Horizon handled the paperwork end‑to‑end, taking care of permits, inspections and the PG&E authorization, and PG&E cleared the system around June 6 so excess generation could be sold back to the grid. The installation looked clean and the cleanup was tidy. Because the household uses a lot of air conditioning in summer, prior electric bills often ran $450–$550; after the system went live the electric portion dropped to about $30 in June (versus roughly $470 the year before), and July — the first full month — showed a total electric bill of $22.04 compared with $430 the previous July. The most memorable parts of his experience were the quick, improved estimate and the fast, professional install that immediately translated into dramatically lower bills — he expects the system to pay for itself sooner rather än
Tom shopped multiple bids before settling on Horizon to install solar on his home. Their sales rep understood his goals and walked him through clear return-on-investment projections, then designed a system that fit his needs. Other companies couldn’t explain their ROI numbers and offered what he judged to be questionable advice, so Horizon’s straightforward modeling and competitive pricing stood out. The installation itself looked professional and tidy — he found the workmanship top-notch. The detail that stuck with him was the combination of a sensible, transparent ROI plan and a clean, well-executed install.
Jordan hired Horizon to install a solar system in July 2011, and eight months later they were still impressed: the meter running backwards and the ability to check production on an iPhone became everyday pleasures. Before making that rather large investment they invited multiple companies to bid, and quickly saw the difference — one outfit relied on a cookie‑cutter price template and didn’t even climb onto the roof, while Horizon came prepared, went up on the roof, and delivered detailed, thoughtful work. Horizon arranged trustworthy referrals to get the roof inspected, listened to questions, and designed a solution that met both the household’s energy needs and its aesthetic concerns. That same thoroughness carried through the entire job: crews arrived on time, worked cleanly and efficiently, and hit every promised date. The detail that stuck with them was small but telling — after the install the team color‑matched the conduit to the house paint so the run into the electrical panel blended in, a touch that made it feel as if they’d installed the system on their own home. Having renovated many houses and dealt with lots of contractors, they put Horizon in the top tier of pros they
Duane H. had turned to Horizon Energy three times before — installations in 2013 and 2014 and warranty work in 2016 — because Bruce had always been prompt on calls and email. When his solar system died in August 2018, he discovered crickets: repeated calls and emails through August and September went unanswered, voicemail still carried Bruce Gordon’s voice but no company greeting, and the listed business address no longer looked like an operating storefront. He dug into mapping and real-estate clues: Bing Maps pointed to a house with the same phone number, and Zillow showed that house sold on 5/24/2018. With no response from Horizon, he ended up hiring another dealer to coordinate with the manufacturer and revive the systems. What lingered for him was the avoidable lack of closure — a longtime vendor gone silent while the business phone and online listings still hinted at life.
Long-term satisfaction for Horizon Energy Systems drops to 3.0 ★ compared to early reviews. This decline is worse than 75% of installers we looked at.
Long-term reviews carry the most weight in our methodology because they are most representative of what you should be paying for: a system that will perform for years.