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.

I did a ton of research and decided to go with Neosun and they installed a 14KW system with Tesla…read morePowerwall. They handled all the permits and SCE coordination to ensuring timely completion. Daniel & Nare were working with me on this one and the crew completed the work in a day. Fair price for the scope of work. If you're in the LA/OC and doing your homework on solar installers -- these guys are worth the call.

My more than 7K system consisted of 16 panels and the Tesla Powerwall 3/13.5K. I also upgraded two…read moreelectrical panels. The system was priced fairly and the installation went very well. Based on my experience with Neosun, this is a job well done from start to finish. Nare monitored the project closely and coordinated with me on its progress every step of the way. Nare's team of workers were professionals - installation was appeared clean, looked good, and they were courteous, accommodated my questions, and did their jobs well. Following the installation were days of heavy rains and it was good to learn that i did not experience any roof leaks. This is a no BS, no nonsence solar company providing fair prices and quality service. I highly recommend this company for your solar needs.

Save yourself some trouble. Just call these guys. Al is the best…read more Shopping for solar is a pain in the you-know-what. And in 2022 I went the whole nine yards in my effort, but still wasn't happy with my choice. This year I decided I wanted to add more panels and a battery. I started the search once again. But as soon as I spoke with Al and he quickly provided me an estimate, I stopped. It wasn't due to the price, which was very competitive, it was for the consultative help. Al asked all the right questions and provided great advice, even though it meant a smaller sale for SunTech. I felt his only interest was in helping me make the right decision for my home and lifestyle, not how to make a sale. Anyhow, I could go on and on about how great these guys are. But most importantly, save yourself the hassle and just call these guys. I know you'll be happy.

Recently bought a home and I was looking into solar energy. The people here are very knowledgeable…read moreand answered all the questions I had. I got a quote and they really worked with me and helped me feel comfortable with my decision. To anyone who is looking into this, give them a call and have them come over for a consult! Costs nothing but your time! Thank you again for all the help !

I'd highly recommend Solar Optimum and Roofing Optimum…read more We've had our solar system from Solar Optimum for more than 10 years, and our experience is a great example of why choosing the right company from the beginning matters. They installed a high-quality system that has performed extremely well over the years. At one point, both of our inverters experienced a manufacturer-related issue. In fact, Solar Optimum identified the problem before we even realized something was wrong. They worked directly with the manufacturer to secure a replacement inverter at no cost and handled the installation quickly and professionally. When it came time to replace our roof, we didn't hesitate to reach out to Solar Optimum again. Their GAF Master Elite certification and the advantages of having the same company manage both the solar and roofing work provided tremendous peace of mind. The warranty benefits are excellent, and the roofing warranty is transferable, which adds real value and is something many roofing companies do not offer. We recently completed a full solar removal, reroof, and solar reinstallation project with the Optimum team, and we couldn't be happier with the outcome. The entire project was completed in about a week, exactly in line with the schedule that was provided at the start. The crews showed up on time, worked hard, communicated well, and cleaned up thoroughly at the end of each day despite the significant amount of work involved. From start to finish, the process was smooth, professional, and well-managed. It's rare to find a company that delivers this level of service over a relationship spanning more than a decade. We couldn't be more pleased and highly recommend Solar Optimum and Roofing Optimum.

I paid almost $50,000 in full for our solar project and encountered significant issues from start…read moreto finish. To address the issues, I communicated directly with Michael (Sales Administrator), Gerson (Customer Service Manager), Mohaimen (Director of Operations), and other managers/employees. Management acknowledged the issues and promised a resolution/accommodation but has now ghosted me. Buyer beware - once they get your money, they won't follow through.

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.

I couldn't be happier with OC Solar! From start to finish, their team was professional,…read moreknowledgeable, and truly committed to finding the best solution for my home. They installed a complete solar system that's already making a noticeable difference in my energy bills. Even better, they set me up with backup batteries so I have peace of mind knowing I'll have power when I need it most. And the locked-in rate they secured for me? That's going to save me money for years to come. The installation crew was efficient and respectful of my property, and the whole process was much smoother than I expected. OC Solar made going solar easy and stress-free. If you're considering solar, I highly recommend OC Solar. They deliver quality work, excellent customer service, and real value. Five stars all the way!

This has been an unnecessarily difficult process. Communication has been non-existent. I have…read morebeen handed off to various people every time I called trying to get information. They do a lot via text, which I liked, but it turned out not at all useful. I would text for updates, and hear nothing back. I would call to find out my contact was out of the office, on vacation, or any number of excuses. This went on for many weeks. I did not know the date for installation until a delivery of equipment showed up at my house unannounced. It was a good thing I happened to be home that day! I thought the installation itself had gone well. They installed the system in two days and everything looked great. Then, I had to wait for the meter collar to be installed. I was told it was going to be performed by their technician. Turns out it has to be done by SCE and that had not been scheduled. After I called again, SCE was finally notified. SCE arrived several days later to discover the cables were too short to install the meter. Now I have wait again for OC solar to come out again and fix this issue and wait again for SCE to finally install the meter so that I can use my new system. I hope the system works.

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!

Ghukas from LA Solar Group showed incredible patience throughout the troubleshooting process. He…read morespent nearly four hours repeating the same explanations to multiple Tesla support representatives and meticulously performing every diagnostic test Tesla requested, including providing photo evidence at each step. His persistence and technical expertise ultimately convinced Tesla that the issue was with the Tesla Gateway, and they agreed to replace it. I was with him throughout the entire four-hour process and witnessed firsthand the dedication and professionalism he brought to resolving the issue. He did an outstanding job and was truly amazing!

It took a while to get everything working and came in about $5000 over original quote but is now…read morepast inspection and been approved to generate to the grid and we r generating most of our power now so overall a good deal