Tim (AWS) said they reviewed my solar system and confirmed the production shortfall, and they would…read morecompensate for the shortfall even though it is beyond the warranty. They suggest regular cleaning will help keep performance on track. I am still skeptical, but I will do this and keep track of the system production monthly to see whether or not it's going to meet the guaranteed minimum production. I truly hope my solar system would performed as they claimed; I would be happy just to get the guaranteed minimum production. I updated my rating back to 5 Stars based on their cooperation in addressing the issues reasonably fair.

AWS did the solar on my house maybe like 4 years ago now and everything has been tip top shape…read more Anytime I've needed service on the system they have been great to come and fix it. Worth getting a quote from them.

Vlad and his team at Factor Roofing are my go-to guys. They're professional, sharp, and their…read moreattention to detail is next level. I've referred them to clients, friends, and family and every time, they deliver. What I really appreciate about them is that he's honest and has real integrity. That's rare these days. He communicates clearly, shows up when he says he will, and always finds a way to go above and beyond. His pricing is fair, and you can tell he takes pride in his work. Wish I could give more than 5 stars

We replaced the old worn out siding on our 57 year old home with Hardie siding. Factor's bid was…read moreattractive, as was their assuring confidence. Our trust was not misplaced. Factor did a masterful job.

California Solar and Electric. CS&E is simply the best. Call Mark Howe. Honest, reliable,…read moreprofessional, skilled and highly competitive. Best warranty and quality materials and labor. 949 637-9108. They are out of Santa Clarita. We are so happy and satisfied with our system and our bills have gone from $300 plus a month to less than $40 a month. Also when the power has gone out in our neighborhood the battery backup has saved the day. Stellar value, workmanship, professionalism and service plus a 25 year warranty. Highly recommended

Within an hour of posting my initial review regarding a delayed referral bonus, the owner…read morepersonally reached out, apologized for the administrative oversight, and sent the $500 immediately. I really appreciate the direct accountability and quick resolution. I'm leaving my original review below for transparency, but their prompt response today restored my confidence in their management. I originally had a positive experience with California Solar Electric during my 10.12 kW solar and Powerwall 3 installation last year. Unfortunately, their post-install customer support and business ethics are nonexistent. I referred a friend who completed their installation months ago. I was explicitly promised a $500 referral bonus for this. After months of waiting, I tried following up multiple times privately to give them a chance to make it right, but I am now being completely ignored. It's a shame because I have several neighbors here in Fountain Valley who are currently shopping around for solar and battery storage. I was planning to refer them here, but I cannot recommend a company that fails to honor its own written agreements and ducks communication. Buyer beware: the installation team does good work, but do not trust a word management says about referral incentives or post-sale promises. Still waiting for my $500.

If you do, study the contract! They sold my system based on the price of $218.88 per month on the…read more25 year plan. I learn that the fine print says it goes up to the real price after 12 months. So it is really $311.12 per month for the rest of 24 years. I had no other other problem. And I love it.

Fast and reliable. Shant was easy to work with. Price was also very reasonable compared to othersread more

TL;DR: Rose is incredible. Honest, patient, actually knows solar and is not just a salesperson. She…read morewill answer every single question you may have and follows up. Has a professional installation crew and executes flawlessly and everything stays on track. Incredible follow-up and will not try to upsell you like other installers. If you're looking to install solar, you should absolutely go with OneSun. Give Rose a call to at least get a consultation and I'm sure your interaction will immediately stand out from other installers. Installing solar is something I kept putting off. When I found out that the tax credit would be going away at the end of 2025, I realized I couldn't put it off any longer. One of the reasons I kept waiting was how annoying solar reps were. Clearly just sales guys who didn't actually know anything about the equipment, technology, and process. I did a bit of research on local installers and OneSun came up a few times, all with nothing but great things to say and especially highlighted the installer's knowledge and patience. Before reaching out to OneSun, I informed myself as much as I could to the point that I knew what panels I wanted, size system, even what inverters I wanted installed. My first phone call with Rose immediately proved that all of the positive feedback I had read was for a reason. She took the time to actually listen to the specifics of my project, what I was looking for, and what questions I still had based on my research. She took the time to answer every question and even went into the technical details that I was interested in. It was clear that she was extremely familiar with not just the logistics, but also exactly how a solar system works as well as the technical details of all of the components in a system. She had my business after that first meeting but of course I still did my due diligence and got a quote from one other local installer which also had similar reviews. Although the sales rep was very nice, it was clear that he was just a sales rep and only reinforced why OneSun was the installer to go with. OneSun's pricing happened to be better but even if the other installer would have come in at a cheaper quote, I would have still chosen OneSun for the install. Rose started the permit process in July and made sure that everything stayed on track, especially since I wanted to make sure that the system be on before the end of the year in order to qualify for the tax credit. The timelines she provided were right on point and the install was scheduled for September. About a week before the install date, there was an unexpected problem. The panels that were originally planned for my install had gone completely out of stock. There had been some kind of manufacturing issue and those panel would not be coming back in stock for another couple of months which could push the project out to the following year. Rose let me know she could acquire slightly larger panels for the project and install it on schedule. I was about to ask what the additional cost for the larger panels would be, but before I was able to, she let me know that there would be no additional cost to me. I'm sure any other installer would have used the situation as leverage to add additional cost to the project. A testament to Rose's commitment to her customers. On installation day, the crew was professional and efficient. They completed everything in one day and made sure to keep everything as clean and organized as possible. Towards the end of the install, I had noticed that they ran one of the grounding wires out from the attic and down the face of the house where I had planned on completing another project in the near future. I knew that the wire would need to be redirected if it was left there so I asked the foreman if he could run it through a different path. Initially he felt like it would not be possible given the layout. I reached out to Rose just to make sure and see if she possibly had another solution. About 10 minutes later the foreman showed me another possible option which was much better for what I needed. It may have seemed like a small thing, but that was another instance in which I believe any other installer would have dismissed my request as pickiness and told me there was nothing else they could do. Rose took the time to speak with her foreman and truly assessed the situation to come up with a solution that fit my needs. It took LADWP about 6 weeks to get my meter installed and for my system to be turned on, but it was still well before the end of the year (and yes, I just got my tax refund with that hefty solar tax credit). It's rare to come across someone like Rose who is honest, patient, and who truly has her customer's best interest at heart. Combine that with impeccable execution and communication, and there is no one else I would recommend for a solar install project. In fact, my parents are considering a small project and I've already told them about Rose/OneSun.

When I first contemplated getting solar panels for our house, the entire process looked daunting. I…read moredidn't know anything about the technology or equipment and I felt ill prepared to make any decisions about what our house needed. There are so many companies out there, it's hard to know who to trust. As soon as I did a few online searches, I was flooded with emails and texts from multiple companies with high pressure sales pitches. One company charged me $350 to do a site survey, just to get a quote for the project, then came back with a revised quote adding $7000 to dig a trench for electrical wiring due to "the location" of our electrical panel. I found OneSun on a yelp search and as soon as I spoke with Rose Avakian, I knew my search was over. This company stands out from the others. There was no sales pitch, pressure, or upsell. Rose explained the technology and equipment in a way that made it understandable and approachable. When her team came to look at our place, they found no need to dig a trench and simply connected to our existing electrical panel. Had they needed to dig a trench, the price they quoted was nowhere near $7000.  From start to finish, the entire experience was transparent, seamless, professional and expedient. The attention to detail and care the team put into making sure everything was done right far exceeded my expectations. If you're looking to go solar, look no further than Rose and OneSun. This is truly the best company I've ever worked with!

Technician arrived on time. Troubleshot the issue and corrected the problem. The price was…read morereasonable. The service was excellent.

Tesla referred us to Home Upgrade Specialist for our solar and Powerwall 3 install, and they were…read moregreat from start to finish. They took care of all the Burbank permitting, kept us updated, and delivered on schedule. The whole team -- estimator, project manager, installers, and even the president -- was friendly, responsive, and professional. The install was neatly done to blend in with house decor. Their price was reasonable and the value unbeatable. Solar adds about 4% to your home's value, so it justifies itself right away -- even if you sold your house next month! The Powerwall 3 works perfectly and gives us backup peace of mind during outages. Five stars. Highly recommended.

We recently completed a full solar + battery installation with Treepublic, and overall it was a…read moregreat experience from start to finish. We did a lot of research going into this project and had a pretty specific vision of what we wanted -- including battery storage, system sizing, and long-term efficiency. The team was receptive to that from day one and worked with us instead of pushing a one-size-fits-all solution. Communication was solid throughout the process. As with any solar project, there were a lot of moving parts (permitting, inspections, utility coordination), but they kept things moving and were responsive whenever we had questions. Installation itself was clean and professional. The conduit runs and equipment placement were well done, and everything looks neat and intentional -- which definitely matters for a system you'll be living with long-term. We also appreciated how they handled the more complex parts of the project, including battery integration and working with LADWP for interconnection and net metering. That process can get confusing, but they helped guide it through to completion. System has been up and running smoothly, and we're already seeing the benefits in terms of reduced grid usage and better control over our energy. Shoutout to Omar and the team for getting us across the finish line. If you're looking for a company that's knowledgeable, flexible, and able to handle a more customized setup, Treepublic is a solid choice.

Updating my review as of June 2026…read more To Treepublic's credit, they recently reimbursed $707.85 in sales tax that we first brought to their attention in December 2025. Apparently there was "an error in a QuickBooks template," and we appreciate that correction. However, our project remains unresolved. One remaining issue involves a SoCalGas incentive of $3,569.25 (SGIP Project ID #SCG-SGIP-2024-5470). Since September 2024, we have repeatedly asked Treepublic to answer a small number of straightforward questions regarding this SGIP application and its cancellation history. Rather than summarize the matter here, I have attached a three-page timeline compiled from Treepublic's own emails and records. We will gladly update this review again when the project is fully resolved and the outstanding issues have been addressed.