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Simms Solar delivers clean, professional installs when owner Matt Simms stays engaged. We found 16 reviews praising workmanship quality, often calling out aesthetic wiring runs and rooftop layouts that looked sharp rather than slapped together. One homeowner who coordinated a concurrent roof replacement reported Matt worked hand-in-hand with roofers to avoid downtime, finished on schedule, and delivered a True-Up bill one year later that matched the original estimate to the dollar. But post-installation support scores drag the company down. Three reviews describe serious permitting failures: one project sat unpermitted for months because the application was never filed, another required a $20,000 fix after an inspector flagged incorrect panel placement and missing county records. In both cases, the owner stopped returning calls once the deposit cleared. If you're evaluating purely on install aesthetics and upfront pricing, Simms competes well. If you need confidence that someone will answer the phone six months after PTO, factor in the risk that Matt may ghost you when complications arise.
If your project is straightforward and you plan to verify permit filings yourself, Simms Solar can deliver a polished install at a fair price. But if you value responsive post-sale support or foresee permitting complexity, the pattern of radio silence after activation makes this a gamble we wouldn't take.
Tom I. chose Simms Solar for a significant home upgrade — a full solar installation carried out at the same time his roof was replaced. Matt Simms acted as owner and lead contact through the whole process, stayed responsive to questions, and coordinated closely with the roofing crew so there were no downtime gaps between trades. Both the roof and the solar array finished on the schedule originally promised. He waited a year before weighing in to make sure the financial side held up; when the one-year true-up arrived, he discovered a $200 credit from the utility even though he ran the AC and heat more than usual. No unexpected costs surfaced, and having the business owner as the direct point of contact gave him confidence that the project would be completed as agreed. He had chosen Simms Solar on a friend’s recommendation and is now comfortable passing that same recommendation along—what stuck with him most was the one-year true-up showing a $200 credit despite heavier-than-normal energy use.
Max B. hired Simms for a residential solar install, signing the contract in early August 2022 and seeing crews put panels on his roof in late September. He discovered the array wasn’t installed to the agreed site plan: two panels ended up severely shaded by adjacent modules and are only producing about half the output of the others. Even worse, the crew put panels up before any city permit had been submitted. After weeks of being told Simms was waiting on the city, he contacted the city and learned there had been no permit filing at all. When he confronted Simms, the company finally submitted a permit in late December, it failed review, and Simms never corrected the submission — then stopped returning calls and emails. The project now sits unpermitted and not built to plan just as NEM 3.0 approaches, with potentially large financial implications and no clear path to finishing on time. The image that sticks is simple and stark: an improperly sited, unpermitted array with two underperforming panels and a contractor that went silent.
Tyler P. hired Simms Solar for a residential installation and, at the very end of the project, needed the company to complete the interconnection with SDG&E. He discovered Matt stopped answering calls and texts after repeatedly telling him "we're good to go." After contacting the county, he learned there was no record of any plans being submitted, despite being told otherwise. An inspector then flagged many panels as installed incorrectly and found issues with other system components. He ended up hiring a different company to fix the problems and faces a bill of over $20,000 to correct the work. He has opened litigation against Simms Solar. The image that remains: a finished-looking system that didn’t clear county paperwork or inspection, leaving him with costly repairs and a lawsuit.
Passed screening
Passed screening
Operating longer than most installers in the market.
Excellent BBB standing. Strong complaint resolution.
Reviews were posted naturally over time.
Tom I. chose Simms Solar for a significant home upgrade — a full solar installation carried out at the same time his roof was replaced. Matt Simms acted as owner and lead contact through the whole process, stayed responsive to questions, and coordinated closely with the roofing crew so there were no downtime gaps between trades. Both the roof and the solar array finished on the schedule originally promised. He waited a year before weighing in to make sure the financial side held up; when the one-year true-up arrived, he discovered a $200 credit from the utility even though he ran the AC and heat more than usual. No unexpected costs surfaced, and having the business owner as the direct point of contact gave him confidence that the project would be completed as agreed. He had chosen Simms Solar on a friend’s recommendation and is now comfortable passing that same recommendation along—what stuck with him most was the one-year true-up showing a $200 credit despite heavier-than-normal energy use.
Patrick hired Simms Solar to put a rooftop system on his Ramona house and was most impressed that the owner, Matt, stayed available to answer every question. He watched a friendly, punctual crew show up, complete the work without hiccups, and leave the site tidy. The installation went smoothly from start to finish, and he now sees lower utility bills as a result. The direct access to Matt during the process is the detail that made the experience stand out.
After collecting eight bids for a home solar installation, Amir settled on Simms Solar because their proposal offered the strongest performance for the price. He found Matt easy to reach and responsive throughout the process, and the installation crew arrived on time, worked cleanly, and demonstrated clear expertise. The job ended with a powerful, attractive solar system that matched the economic case that first drew him in. The detail that stuck with him: among eight options, Simms delivered the best combination of output and value, and the crew left the property tidy.
Recent customers rate Simms Solar Electric 4.5 ★
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.