I started with a call to Semper Solaris to inquire about installation of a couple of additional solar panels. Robert C. came to my home and went over the advantages of adding a few more panels that would still keep me in tier 1 status with the power company as well as consideration of adding a Powerwall III battery. Considering the increased power generating capacity of newer panels and storage capability of the Tesla battery, I was sold by the quality and value of the expanded system. The design and contract review was done online in a timely fashion and it was a swift transition to installation taking place in just one day, as the the lead installer (Antonio) was joined with two co-workers who explained how the project would move forward and answered all my questions. The work was complete by 3pm and I was extremely satisfied with the entire process. Thank you Semper Solaris for a quality job for a fellow veteran. Dan read more

We had a Solar City System put in over 10 years ago.Then we wanted to upgrade with a solar Battery system. Semper Solaris was recommended by Tesla for the Power wall. Semper was very professional and gave us a reasonable price and guidance for tax credits at that time. The system with The Tesla Battery is excellent.I can control with an app. Now, we've been in the house over twenty years and it's time for another roof. Ken from Semper Solaris came over and we considered all the options and we received some credits for our loyalty. So the roof is almost complete and the team has been great.Excellent communication.We worked out some issues with the satellite TV and internet antenna with Tim and proceeded smoothly. The entire team has been very professional and clean up afterwards everyday they've worked. Love the new roof and gutters! read more

I've had my solar system sold and installed by Semper for 3yrs now. I had a communication problem early on and 8 panels stopped producing last month. They were very responsive and fixed problem in a reasonable amount of time and communicated with me the entire time read more

I had a small service follow up and Janice Lee was so fast to help me after Carlos forwarded my message and Brian Wicks came out within 2 days to repair. They were quick and responsive and made the small repair effortless. This was an aesthetic issue but they were quick and efficient. I've had my roof for one year and still get immediate support! The post sales & installation support is amazing. read more

My rep Angie C was prompt, fast and efficient, communicating perfect and well executed to trouble shoot and resolved my envoy connectivity issues for the past 9 months it was painless. read more

My husband and I were looking into getting solar this year. We google searched companies near our location and Semper Solaris popped up. Doing research on the company we found that it was a veteran owned business (which my husband latched onto since he's a veteran himself) and they carry many of the same morals and values within their business practices my husband holds dear from his time in service, so we decided to get an estimate. We received a call from an Alex Thomson-Corrao and honestly we couldn't have been luckier Alex was amazing he was very knowledgeable in the industry. He helped us crunch the numbers to see the value in the system for our energy needs. He went over how solar systems worked and tied into battery storage and the grid. He even helped us with looking into the incentives and rebates that were available at the time. He was very proffesional, freindly and understanding, but most importantly patient with us since we came at him with a million questions being first timers shopping in the solar industry. Unfortunately we did not go with getting a system because financially it was just not a right fit at this time, however we will definitely keep Solar Solaris as a business to go to when we decide to take the leap at a later time. Thank you Alex for your time and patience Ching and Brad read more

While I was happy with the installation process 6 years ago, their customer service after the installation is very poor.i have had one Panasonic solar panel crack, one Tesla solar battery go bad, and now my inverter stopped working. When I call for help and service, i cannot reach the support staff directly. All telephone calls go to the customer service staff who merely take your message and route it to the appropriate department. Then it takes a few days for them to call me back. I don't know if they are short staffed to answer calls directly or just their way of doing things, but I view this as very poor customer service. I'm beginning to doubt the quality of their products with my solar panel, battery, and inverter having problems within these past 6 years. read more

Brak was fabulous!!!-diagnosed the problem that knocked out my system, then washed the panels, which they really needed, recommended a surge protector, installed one, talked to headquarters, and recommended them to come in couple weeks to put in new inverter- on warranty. ( I really want him to come back then when company schedules the new inverter installation) Thank you , Brak and Semper Solaris. read more

Semper Solaris installed my solar system in 2018, and we both signed a contract giving me a supposed 25-year warranty for all the components. The salesman said that they covered the service cost of warranty repair in the case of component failures. Now it's 8 years later, and I'm having low output from a couple panels, so I called them. They checked my system via the WiFi connected monitoring system, and verified that a couple of the micro inverters were intermittent or not working. So I was told that someone from service would contact me to set up an appointment. So what that means I guess is that someone from service will come out for "only $299" to check it out and see if I want an "inverter upgrade." So I replied with the question what exactly is an inverter upgrade when I supposedly have a 25-year warranty on my inverters??? They ghosted me after that. So far I have the feeling that once Semper Solaris has your check cashed, the supposed 25-year warranty turns into a "taillight warranty" (over with as soon as the taillights disappear). Buyer beware: if your Semper Solaris installed system has problems you will need to take them to court to get the warranty repair they signed a contract to provide. After I take them to small claims I will update this review. read more

A company that stands behind it's products and is still veteran owned. My recent experience was exceptional as they addressed a system failure to my great satisfaction. read more

The phone call follow up was helpful and cleared up our questions. Linda was knowledgeable, courteous and professional. We are very happy with our solar panels, especially the reduced utility bills. We so appreciate the excellent service to veterans. Thank you for everything! read more

I had my battery backup system installed during covid. I had a wiring issue occur on Sunday April 2026 and reached out to Semper. They responded and had a team of electricians come to my home and solve my wiring issue and get everything back in order by the end of day on Monday. They honored the warranty and the electricians were extremely professional and knew what they were doing. I appreciate a company that stands behind their work and responds immediately. read more

Terrible customer service, terrible finnish work repairs. Avoid this company if you want customer service.

When we decided to go solar a couple of years ago we interview three firms: SunRun, Tesla, and Semper Solaris. We went with Semper Solaris and have never regretted the decision. Great design and installation process as well as great and timely customer support when's things (inevitably) break. read more

Had an installation issue with a roof leak that damaged a ceiling. The roof was repaired and the ceiling was patched. Sharise was outstanding in coordinating the process after the assigned project coordinator, Andrew, repeatedly dropped the ball in keeping me updated on the process. His voice mail was not even set resulting in unnecessary repair delay. Sharise saved the day and was extremely professional. The repair tech, Austin was outstanding. He was on time, did an amazing repair and was a pleasure to work with. I am a retired Sr Project manager, mechanical and energy conservation, and in my experience the repair, even with the rocky start, was first class read more

Slow response. Takes days for a response. Several different people and phone numbers responding so you need to remove spam filters. Not a lot of explanation about the process and expected timeline. Price was high for backup battery and installation did not happen as described. Workers who i stalled were great though. read more

Called Semer Solaris to get a quote on how much it cost to install solar panels. A person named Devin showed up. He took some information regarding my monthly pg&e usage and gave me a quote. I told him that I would think about it and get back to him. He was very pushy on imposing the lease option and the deal will expire after he leaves. Then he was rude to me and my wife after telling him multiple times that I would get back to him after I looked at all options. Very pushy sales tactics BEWARE!!!!! read more

Very expensive. They were 100 - 400 percent more than several other quotes that I received. I ultimately went with a local company and saved myself several thousand dollars. read more

I have been trying for over a year to get help with my solar system as my batteries were not working/ communicating. I was ripped off by several solar 'tech' repair guys , and no solar company would help as they didn't do the system installation. I finally called Semper , and today Brak B. came to my house, problem diagnosed, new inverter ordered . Battery issues to be fixed when new inverter is installed.. I am so happy that I called Semper.. Their customer service is exemplary !!!! read more

Semper has been the most professional organization to work with, truly dedicated to customer satisfaction, even years after the installation. read more

I had installed a system a while ago and it took some time for Semper Solaris to get their maintenance situation under proper control. I've noticed a 100% improvement in response, follow up and results. I commend the company for doing a strong turnaround. read more

I received a wildly expensive quote that did not meet fire code, would not recommend. The business owner actively takes down Yelp comments they don't agree with. This is my second time posting this review. read more

Sadly, these folks don't offer removal/reinstallation of existing systems, which is quite commonly needed when it comes to re-roofing projects since most roofers/construction companies won't touch the solar if you already have it on your roof. Their choice...but would be nice to see them expand their services... read more

I was promised moon and stars by SemperSolaris and have ended up paying $575.00 PGE bill for month of January ,2026.Stay away.I can not find the salesman. read more

After getting multiple quotes we decided to go with simper Solaris. Alex Thompson-Corraro was great through the whole process. The installation guys were great and took extra time to help us move our shed so we would be happy with the way look of the pipes on the exterior. We were up and running off the grid within a few weeks! Thanks again Alex read more

Semper Solaris has been my go to vendor for my solar panels and batteries. I recently had more panels added to my system. They provided same courteous services and professional installations. Arriving right on time and finished with things nicely cleaned up. I am very happy about the services and highly recommending their work. read more

Semper Solaris is a great company. at first I had an issue with my latest installment but their liaison, Daisy Trejo, was a truly excellent lady. She helped me solve my issue and gave me the utmost attention to resolving it. I now have a new roof, excellent solar power, and a Tesla battery thanks to them. (Different times for installations but same company). read more

Went with Semper back in October. Could not be happier. They did a great job installing all my panels and the workmanship doing our batteries and wire management was amazing. I love the Enphase product line. Out of all the quotes we got, they had the best bang for your buck package. I will be pursuing with them later about expanding but we had to stick to a strict budget at the time and they worked with us on that too. read more

A representative arrived on time and filles in internal forms very quick. A quote was extrimelly expensive so i found somebody else.

Sempre serviced our system yesterday. Laura in customer service went above and beyond to get us in ASAP, and Reuben solved our problem quickly. Professional, competent, responsive, accountable! Love this company, and thank you all for your service! read more

Customer service is REALLY BAD! Really wanted to use them too...I just couldn't get anyone to respond until after we went to another company! read more

This is a full context post. I initially had solar panels installed last year. the contractors punctured my roof and installed the solar panels incorrectly for my roof (TPO roofs require staunchons!) leading to major water damage of my home. Thankfully Laura was assigned to my case! Laura has been an absolute god send, following up and coordinating with the contractors and who fixed the roof (so far so good!) and even the mold specialists who dried out my home. She even sent the contractors back for tiny little detailed cleanup work-- all of this before the baby was due in 2 months. I am so grateful to have such a hardworking partner at the company on my side. Companies may make mistakes and the key was that Semper Solaris made right by it and very quickly. Laura was super responsive and very understanding of my circumstance, namely that I needed the nursery to be completely fixed and STAT. thank you for your great follow through and customer service! read more

My solar equipment has not worked for about a year now. Semper Solaris used sunpower equipment and Sunpower went out of business. Semper Solaris refuses to honor the warranty and repair my system. They said it is not their warranty and there is nothing that they can do for me. Semper Solaris is still in business and can easily replace the faulty parts but they refuse to make the repair under warranty. I did business with Semper Solaris not Sunpower. It is my belief that Semper Solaris should do the repair under the warranty that they promised. I specifically chose this company because they honor veterans but to my surprise they will leave a customer behind. read more

Hi, I worked with semper Solaris to install a new roof. The project manager, Tatin Davis, did site inspection while the roofers were hard at work. He and the roofers were timely, conscientious, and productive in that my roof was fully installed in two days with city inspection shorty after. The roofers cleaned up every day and left my home free of debris which they took with them. Please look to this company their cost is fair and they provide excellent service and warranties. read more

Semper Solaris - Roof installed - Heating & Air Conditioning/HVAC Near Me - Manteca, California

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So far so good. We are having a complete re-roof and solar system upgrade. The re-roof was just completed and the results are amazing. The Construction Manager, Tim Aubert, spent a lot of time beforehand making sure all our requirements and concerns were addressed, going so far as to investigate our Leaf-Guard rain gutters to make sure that leaving them in place would be compatible with the Owens Corning roofing system and that this would not violate the warrantee of either the gutters or the roof. Once all was in place, tear down and re-roofing took only 2.5 days, including new roofs on two small outbuildings. This was definitely not the low bid, but you get what you pay for. We are now looking forward to the reinstall/upgrade of our solar power system which should start in a couple of weeks. read more

Semper Solaris - New roof on house and outbuildings. - Heating & Air Conditioning/HVAC Near Me - Manteca, California

Very expensive relative to others and my sales rep quit within weeks of selling me solar.

Semper Solaris was always there if a problem. Installing a Powerwall 3 battery requires a lot of coordination between SS and their different Departments, the Building Inspector and finally PG&E. Not an easy task. I will say there were problems as expected but SS was always there to get the job done to my satisfaction. The power station is a great invention and you also have Tesla to help when needed. It eventually pays for itself and I don't have to worry about blackouts. Tesla's app is great as you can see what is happening and have some options that you can choose. Thanks, Richard read more

Our project mgr Tatin was quick to respond and address any questions and concerns. He followed up with an inspection of the work when completed and made sure we were happy with the work done. Thank you read more

I asked for a quote. A salesperson came over. She was 20 minutes late... never apologized. We talked about different types of batteries: she said she'd quote Tesla but didn't. She said she'd give me 3 quotes (deluxe, average and economy). I only got one and I don't know which it is. I don't know if she included the veteran discount. Her quote showed my monthly PG&E bill of $240. But the solar quote was $310. She had trouble getting connected from my house so after 45 minutes, she headed over to a coffee shop and said she'd email the quote (which she did) and call me to discuss it (which she didn't do). I emailed her with some questions. She never responded. I emailed the company with my feedback. they never responded, either. All in all, pretty pitiful. read more

I am having a roof and solar installed. I have also needed help with the paperwork and a young lady by the name of Nicole Redding has graciously walked me through the ordeal with patience, knowledge and professionalism. It's nice for us seniors to be able to trust someone in a situation like this. I also literally got a half estimates and talked to a half dozen reps. The only one that really knew all about solar and could explain it in layman's terms was Robert Cassidy. He has constantly had my back through the whole process including finances. Great experience! read more

Semper Solaris - Heating & Air Conditioning/HVAC Near Me - Manteca, California