Lamorinda Solar reviews
• last updated FEB 26, 2026Loading map...
The Verdict
Lamorinda Solar divides customers into two camps. We found 13 reviewers praising Mark's installation workmanship, citing crisp coordination with roofers and systems still running strong after 10 or even 18 years. One homeowner had a leak fixed within 48 hours of calling, another watched their pool jump from 75 to 90 degrees in under two weeks. But we also found 7 complaints about repair refusals and premature failures. One HOA reported Mark flat-out refusing service calls because he hadn't been out in a couple years, even though they were planning a full system replacement. Another customer's panels started leaking after just 7 years (Mark has since retired, leaving them scrambling for warranty coverage). A third paid $20 for six O-rings Mark sold them, then found a 50-pack online for under $9. The installation reviews shine, but the post-sale pattern is troubling.
If you want a meticulously installed pool solar system and plan to ride it for a decade without needing Mark, this could work. But if you expect warranty support or affordable repairs down the line, the refusal-to-service complaints suggest you may be on your own.
Reviews That Shaped Our Verdict
Tim had a rooftop solar array installed by Mark, who has since retired. Seven years in, he discovered the panels were leaking and ended up needing a warranty replacement. He’s now scrambling to arrange that replacement, and the labor alone is turning into a significant out‑of‑pocket expense. That’s especially frustrating because the equipment was advertised to last 10–15 years, yet failed far sooner — leaving him on the hook for costly installation work despite still being within the expected lifespan.
Nita hired Lamorinda Solar to install a solar array at her HOA pool about 10–15 years ago. When that system started needing repairs recently, the company refused to come back, explaining they won’t service installations they haven’t visited in a couple of years. She had been planning a complete replacement and probably would have chosen them again, but the refusal to perform follow-up repairs ended those plans. The takeaway: for long-term maintenance on decade-old installs, this company may not provide the ongoing service homeowners expect, so plan accordingly.
Knut O. found that Mark did a solid job installing the solar array on his home, but the relationship unraveled once service was needed. He discovered steep service charges — Mark wanted $20 for six O-rings — so Knut bought the installer-recommended minimum of 50 O-rings himself for $8.86 and offered to share the extras with anyone who needed them. He tracked down a different repair company that fixed a panel covered by warranty for a fraction of the hourly rate the original crew expected. He also learned the installer had recommended a company that no longer exists and had promised the system would last more than 20 years; instead, the eight-year-old system developed repeated leaks and significant water loss. Frustrated enough to want to give a rating below one star, he warns future buyers to watch for expensive service markup and to test warranty follow-through — and he keeps those inexpensive O-rings as a concrete reminder.
Platforms Monitored
Performance by Work Type
How We Got To Trust Score 77
Clean Record
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: NR
Poor BBB standing. Significant complaints.
Review Patterns
Contractor License
License information could not be confirmed.
What You Can Expect
Nita hired Lamorinda Solar to install a solar array at her HOA pool about 10–15 years ago. When that system started needing repairs recently, the company refused to come back, explaining they won’t service installations they haven’t visited in a couple of years. She had been planning a complete replacement and probably would have chosen them again, but the refusal to perform follow-up repairs ended those plans. The takeaway: for long-term maintenance on decade-old installs, this company may not provide the ongoing service homeowners expect, so plan accordingly.
Knut O. found that Mark did a solid job installing the solar array on his home, but the relationship unraveled once service was needed. He discovered steep service charges — Mark wanted $20 for six O-rings — so Knut bought the installer-recommended minimum of 50 O-rings himself for $8.86 and offered to share the extras with anyone who needed them. He tracked down a different repair company that fixed a panel covered by warranty for a fraction of the hourly rate the original crew expected. He also learned the installer had recommended a company that no longer exists and had promised the system would last more than 20 years; instead, the eight-year-old system developed repeated leaks and significant water loss. Frustrated enough to want to give a rating below one star, he warns future buyers to watch for expensive service markup and to test warranty follow-through — and he keeps those inexpensive O-rings as a concrete reminder.
James D. picked Mark and his crew to install a pool-heating system at his home and has relied on them for over twenty years. He discovered they handled the original installation cleanly and then kept the system running with rare, prompt service calls. Each fall they perform a winter check in October/November so the heater starts without trouble in spring — a detail he highlights as the thing that sets them apart. He found their pricing fair, the installation work solid, and the warranty reliable, and he appreciated how quickly they respond when needed. He brushes off the lone one-star review as off-base and considers LaMroinda Solar the top choice in the area; the consistent, decades-long maintenance and that dependable fall winterization visit are what stuck with him.