I've used them for multiple projects including an EV charger install, whole house surge protector,…read moreand electrical install on a sauna. It's always been good work and communication.

I contracted with Got Watts in April 2025 for roof installation of 18 panels and 15 kwh of back-up…read morestorage. While their price was actually the highest of the 3 company bids received, the difference was marginal and the communication/information/responsiveness by Got Watts was far better. Day to day as the project proceeded, there were problems and we'd solve them. No project of this scale will proceed without a few hiccups. In retrospect I think it went very smoothly. I found 100% of the personnel to be professional, dedicated, knowledgeable, and cheerful. They did everything they said they would, at the price agreed-on, and I'm very pleased with the result. I'm glad I went with Got Watts.

We can't say enough great things about our experience with our solar installation from Northstar…read moreSolar in Danville. From start to finish, we were so comfortable with every individual we interacted with. Our salesman, Patrick was no pressure, extremely helpful and very responsive. Danielle in the office was a joy and our project manager Jason was there for us all along the way. The install crew was phenomenal and completed the entire project in two days. We absolutely love having battery backup especially from 4 to 9 PM when PG&E charges the highest peak rate in the Continental U.S. California has the second-highest electricity rates in the U.S., (only behind Hawaii) which makes receiving power from the sun especially rewarding. If you are considering solar power, we highly recommend giving Northstar Solar an opportunity.

One year update. I had an issue with one of the string's stopping producing, so I reached out and…read morelet Northstar know. Jason and his team jumped right on it and sent someone over to look at it. They went back and forth with Tesla and re-ran some lines, and I was back up and running very quickly! Very happy I went with them, it's nice to have to have a local company you actually get a quick response from. Still *highly* recommend them!

Solar Harmonics was honest from start to finish. From the start the estimate for our home was…read moreclearly laid out no surprises just honest feedback and expectations! Once the work began again nothing but good communication and follow through. Service was delivered as promised we are so happy with the results. Highly recommend Jamie Duran and his entire team :)

A Team That Actually Cares About Their Work…read more From the start, Solar Harmonics stood out because they treated me like a person, not just another lead. Jamie and his team were responsive, clear about costs, and never pushed anything unnecessary. The installation crew showed up on time, worked cleanly, and left my property spotless. They installed 19 panels with Tesla Powerwall 3s at my home in Antioch, and everything has been running perfectly since day one. The panels look great, the Powerwalls perform flawlessly, and the app setup was smooth. It is rare to find a company this transparent and easy to work with in the solar world, but these guys nailed it. I highly recommend them. Gordon & Jana

I had a complicated battery install, to move circuits to a new main panel and install a Franklin…read morebattery and A Gate. I work in the power systems industry and had lots of technical questions and inputs on the design. My installer, Manny Rios, was deeply technical and knowledgeable about the systems he installed. When he didn't know the answer he knew where to get the information and didn't try to hand waive past the topic. We are still dealing with a few minor issues but I'm grateful for the attention to detail and ability to address my detailed concerns. Thanks!

I would have give 4.5 stars but there was no way to put so I settled on 4 stars…read more I wanted to get the panels installed last year and they promised to install it in 2025. They were great and on time. We had issues with city inspection twice and that's why I had to remove 1 star. Overall, they are great.

Just had the guys install solar & battery. No fuss, no bs. They explained what's what and got the…read morejob done. Didn't try selling me stuff I didn't need. Will use them again if I ever move

I was hoping my interactions with this business would be positive, but it was not. I spoke to Jeff…read moreand unfortunately he was unprofessional and discourteous. I provided the necessary information for my solar installation (including usage and current costs), but he was very combative when it came time to discuss my project. He refused to discuss a power purchase agreement, instead he tried to force an outright solar panel purchase, which I made clear was not an option. He offered no apology and no clear explanations about his actions. Free advice: if you are not interested in the job, just say so politely. Don't be rude, discourteous, and unprofessional.

I've been meaning to leave this review for a while now because Sol R Us really came through for me…read more The main reason I went with them was to ensure I was grandfathered into NEM 2.0, and they absolutely delivered. ​Daniel and his crew (special shoutout to Chris and Jessica) are total pros. Unlike some other companies that sub everything out, their in-house team handled the electrical and roofing work seamlessly. You can tell they take a lot of pride in the quality of the install--everything looks clean and is performing perfectly. ​If you're looking for an honest, reliable solar company that actually respects deadlines and treats your home right, look no further. Big thanks to Daniel for the great communication throughout the whole process.

Inquired about having my Solar system looked at due to no power to my inverters. Chris reached out…read morequickly to me and we set up a date for a tech to look at my system. Chris contacted me the following morning and advised me a tech was on the way. Tech Seng came out and looked at my system and started trouble shooting it. My inverters weren't on and I have a Tigo system. My panels were producing power but power wasn't being used by me. Seng was able to talk with Tigo and they informed us that 7 panels were down and over producing which in turn for safety shuts down the inverters. Tigo was able to shut those 7 panels down so I could still get power from the other panels and the inverters would then work. So power finally got restored and new panels would be sent to me to get installed. I also asked Seng to give me a quote on a separate plug for my ev to go off the solar breaker panel. Seng did a great job troubleshooting it and to get it back online. Wasn't sure on all the cost and estimates. Jessica the office manager called me and we worked out pricing for the install of the new panels (when they arrive) and the ev plug. They gave me a credit for the work they did today for the future work I will have them do. This is what I would call great customer service, both parties getting a great experience and reasonable.. I would highly recommend

Just had 30 panels and 2 batteries installed after working with Kevin. They had excellent customer…read moreservice and great communication through the whole process. Kevin is very sincere and gives his honest opinions. Multiple times I spent 30+ minutes on phone with Kevin asking him questions. Even after the project was complete and installed, Kevin continues to reach out to me when I have questions. I would 100% recommend this company to anyone looking for solar. Their new programs help to bring costs down now that the residential tax breaks are gone. Thank you West coast solar for saving me from PGEs prices!

I've had this system for about a year now and recently submitted a service request. It's been…read morenearly three weeks, and I've received no meaningful response--only automated messages. Calling customer service has been equally frustrating, as no one answers, and it's difficult to even find a direct email contact online. At this point, I'm simply asking for someone to return my calls or emails and provide an update on my service request. Unfortunately, this lack of communication reflects the same challenges I experienced during the installation process. I would appreciate a prompt response and resolution.

I can't say enough good things about Carlos Gomez from Sunlight Electri-Cal Solutions…read more I've been working on a non-standard solar setup using an EcoFlow Delta Pro Ultra X and EcoFlow Smart Home Panel 3, and finding a contractor who truly understood this type of system was incredibly difficult. I spoke with many contractors, and almost all of them sent salespeople who gave generic answers or tried to push cookie-cutter solutions that clearly didn't fit my setup. Carlos was completely different. From the moment he arrived, it was clear he wasn't a salesperson -- he's an engineer, and it shows. He took the time to deeply understand my system, reviewed actual spec sheets on the spot, and immediately identified issues that other contractors completely missed. Multiple companies told me Hyundai panels would work fine. Carlos checked the amperage limits, applied proper safety margin calculations, and clearly explained why those panels would not work with my EcoFlow system -- saving me from a costly mistake. He also walked me through: Proper panel selection within voltage and amperage limits Safe string configurations and series wiring How to maximize roof space while staying within code Permitting requirements I hadn't been told about before On top of that, Carlos identified critical code and safety requirements that no one else mentioned: Bollards required in the garage to protect battery units Correct battery placement to maintain required clearance from doors and entrances Heat detector requirements for battery installations in a garage These are all things that would have caused inspection failures later -- and Carlos caught them immediately. He spent well over an hour with me, climbed onto my roof to check for obstructions, inspected battery placement, reviewed wiring paths, and answered every question in detail without ever rushing me. What truly sealed the deal was how efficient and transparent the pricing process was. Carlos was able to turn around a detailed quote very quickly, and when I received it, I was honestly surprised -- it was a significant amount lower than every other quote I received, even though his evaluation was by far the most thorough. Given everything: His technical expertise The level of detail and care The ability to integrate with my existing system The fast turnaround And the much better pricing Choosing Sunlight Electri-Cal Solutions was a complete no-brainer. Carlos is knowledgeable, meticulous, honest, and genuinely passionate about doing things the right way. After meeting him, I completely understand why this company has such strong Yelp reviews. If you're in the Bay Area and need electrical or solar work done the right way, especially for a non-standard or custom system, I highly recommend Carlos and the team at Sunlight Electri-Cal Solutions.

I actually first contacted Sunlight Electri-Cal very early on this year, in April. I had closed on…read morea new home but knew we would want to get solar installed. Juan was very responsive and came out to take a look at our home right away. What I loved about Juan and his team is they are NOT sales people, they're real engineers who are focused on solving your problems and meeting your needs. Juan and his team are true solar experts and know exactly what they are doing - they were great at walking me through key details I should know about the system, how to best take advantage of having a solar system, and did their best to get me scheduled (in spite of multiple difficulties) for installation before the end of the year. Just for context, I've talked to another solar company where clearly they were just about trying to close the deal and sell sell sell, which really turned me off - it felt like they just wanted our money as opposed to wanting to understand what we really needed. Juan's team really shined here by just showing up to be real experts who are thoughtful about what system you need, as opposed to trying to close a deal. Juan and his team were also really patient and flexible. Our new home's solar system had to be turned on before we could start any work, and that process took months due to Sunnova going bankrupt. And, they were also really thoughtful when we mentioned we had added in some upgrades that would affect electricity use (ie saunas and outdoor electric heaters), and they reassessed their initial project and updated it to accommodate that. I thoroughly enjoyed working with them and am really grateful that we got our project done so well!!

I first reached out to Diablo in 2020. I was solar-curious, but I determined at the time that it…read morewasn't what I needed. This year (2024) I decided that my electric bill was just too much, I was going to get solar eventually, and the longer I put it off the more it would cost me overall. I liked that they didn't harass me. Once some folks get your number they just wont stop calling. Diablo didn't bug me back in 2020 and they were not really trying the hard sale this time either. I called them, had a brief discussion about what I was looking for, and scheduled a visit. I didn't know much about solar installations, so I spoke with a friend who was familiar with these things. He told me what to look out for in terms of equipment. After I got the quote, the folks at Diablo were very helpful answering questions along these lines. Again just providing information, not trying to sell me. Diablo handled everything and scheduled a time to do the install. Overall it took about 3 days. Two days for most of the hardware and then a day about a week later to deal with the mess in my breaker box from some previous work done by another company. Then they handled everything with PG&E and about a month later everything was cleared on PG&Es end. This delay was due to PG&E processing paperwork. Overall it's working well. Just see the before and after photos below. Not of my roof but of my electric consumption. You can see some before and after values as well as how the system performed on a particularly hot day.

Terrible service , this company must have been sold since we installed our solar in 2018…read more Was getting charge $200 just for a quote and when the day they were supposed to drive to the property , we told them ahead of time of how to get in and the code to the pool House , they wrote a report that they couldn't get in After speaking to the manager , they had to sent someone else out but don't know when that will be Very frustrating experience, seems like they don't communicate internally Ended up repairing with someone local in Sonoma county

United Solar installed a 22 Panel, & 20,000 Kw Battery system to my home, that went live last…read moreNovember 2025. They were very professional, knowledgeable, and the staff who installed this system very technically competent! I believe I paid a competitive price. The performance of the system has been consistently very impressive. I have definitely seen the difference in my PG&E bill! I would not hesitate to recommend them to others.

My wife and I had a very concerning experience with United Solar Electric regarding their business…read moreethics and refund policies. We were interested in solar for our 1940s home and provided a deposit in good faith. However, after further inspection of our roof and the overall project viability, we decided not to move forward. When we requested our deposit back--before any equipment was ordered or installation began--the company initially refused, claiming it was 'passed' the point of a refund. It was a high-pressure situation where we felt they were trying to lock us into a contract we weren't comfortable with. While we did eventually receive our deposit back after pushing the issue, the initial refusal to return funds for work not performed was a major red flag. Homeowners should be very careful with the fine print here. If you are looking for a company that values transparency and customer comfort over just 'closing the deal,' I would suggest looking elsewhere. We're glad we didn't get stuck with them and are instead putting that money into improvements that actually fit our home.