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 called Emin and he responded right away. He made our project that was so complicated to me, seem…read moreeasy. From the design, permits, and the installation, everything was easy and smooth. On top of that the communication was never a problem, he always answered all of my questions and concerns immediately. I couldn't be any happier with the job that was done. Thank you Emin and your crew.

Positives : Emin was quick to respond when we had a roof leak and the guys that came out to put…read moreplastic on our roof to prevent further damage from the rain were nice. We didn't get any more water leaking through for the rest of the rain spell Negatives: After discussing the repairs via telephone, Emin just stopped responding. Said they could do an inspection report for insurance and then never responded or sent over the report. I'm not sure if it wasn't understood what we were needing, they never told us a price (other companies told us price for this report up front), and ghosting us when we needed to keep our insurance claim moving forward really was inconsiderate

This company installed our solar panels two years ago. We have a steep roof so it was a unique…read morechallenge. When we initially met with Joy she represented that they have experience designing solar for steep roofs and she showed up examples of prior work. During the design, contracting, and installation phases, the company was responsive and easy to work with. However, one year later it became clear that the design was not sufficient to meet our solar needs as Joy and Han represented; not even close, and we are still paying a large electricity bill each month. As such, the economic analysis offered by the company to entice us to move forward with them doesn't pencil out and we might never recover our investment costs. If they had provided the actual solar production, we would not have moved forward with the project. When we contacted the company about this issue in summer 2024, they were very slow to respond and even though they offered to redesign the system, they delayed and delayed and often we had to contact them multiple times before we received a response. Further, they tried to shift some blame to the "trees and unexpected weather conditions." The trees being referenced were there at the time of their bid and appeared in their modeling. The trees are trimmed regularly. The weather has not had any significant deviations. More than a year after we contacted them, they have not yet redesigned the system, nor can they guarantee that the new redesign will cover our solar needs. It is very disappointing that they have not made this right. Hopefully, we can still resolve this issue, but I felt compelled to write this review so others are aware that the anticipated solar production and the economic analysis to convince you to sign may be grossly misleading.

Joy and Hans were great, and super helpful along the way. Our system was beautifully installed, and…read morecustomized to the needs of our property. They helped us sort through lots of options and configurations. Prices were competitive with bigger 'name' companies. We really prefer using local companies, especially with something like solar, where having them nearby is a benefit. I would highly recommend you talk to Altadena Energy & Solar over one of the bigger national companies.

Bravos to Josefor his aptitude, professionalism and sense of humor!…read moreHe is a dedicated Technician and a pleasure to work with on my System. Tutti Bravo!

I just got my solar installed with powerwall and it has been a mix bag of positive and negative but…read morehope the team can really improve for their customers with this review. Overall the team all seem to be doing their job and the execution is quick but the lack of customer communication is not up to par for a 50k project. It felt like I was the project manager all the time, following up on schedule, and then calling to verify. I had a feeling that the teams are split and everyone only does their job based on a scope and not as a team. Sometimes, I just want the truth on timing.... Bc Everytime I get a timing commitment, it's delayed and or no show and then also no updates. The project is still on-going with skirting, commissioning wasn't even done , painting of pipes/conduits... so will update accordingly. 8/6/26 : the team swiftly came the next day and finished painting and commissioning so I will add a star.

Had to have roof replaced due to leaking during rains . Solar panels needed to be removed…read more They coordinated with the roofing company so everything would go smoothly. They were professional, clean, cordial, and the end result was exceptional. I am very pleased with the work performed and everyone that was involved. I hope highly recommend them especially since it's so hard to find a company that will still be around in years to come. My worry was that the installation may contribute to future leaks due to rain. I observed the installation process asking questions and am satisfied that I won't have any issues.

Our first solar system was installed through Project Solar, which outsourced the installation, and…read moreunfortunately it was a nightmare from start to finish. Because of that experience, we were very cautious when we decided to add more panels and reached out to several different companies. From the very beginning, HPM Solar stood out. They were easy to work with, communicated clearly, and consistently kept me informed about every step of the process. There were no surprises and no guessing about what was happening next. We were also extremely fortunate that an earlier installation slot opened up, allowing HPM to fit us in just in time to take advantage of the expiring tax credit -- something we truly appreciated. The installation crew was excellent: professional, efficient, and respectful of our property. They did great work and made sure everything was cleaned up before they left, which really showed their attention to detail and pride in their work. Overall, the entire solar process with HPM Solar was very smooth and stress-free, a complete contrast to our previous experience. I would absolutely recommend them to anyone considering solar.

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.

Super super kind and friendly, absolutely amazing customer service! I love solar Unlimited and I…read morehighly recommend them for all your solar needs.

Came back to Daniel for more solar panels!! Always great customer service from Daniel and always…read moreupfront about everything! No hidden fees!! Adrian Galvez is awesome per usual!! Always informative and has great attitude about this process.. number one solar company in our books 19 panels installed from this company..