When you're ready to experience premium, affordable home energy technology and storage solutions, we'll be there for you. Our California solar experts at SolarUnion are dedicated to helping you harness the clean and renewable power of the sun in your home. We deliver the high-quality service, parts, and designs that you need-creating long-lasting, intelligent designs that can grow with you into the future.
Our solar developers offer a turnkey solution with asset management for the entire life of your solar asset. Unlike traditional solar installers, our commitment to our clients goes beyond the installation alone. When you choose us, we treat you like family and always make sure to explain the entire solar process from start to finish.
Every one of our installations carries a 25-year performance guarantee, which means we always fix underperforming systems at no cost to you, including labor and parts. We also offer an industry-leading 25-year roof integrity warranty. We have offices throughout California, including San Diego, Stockton, and San Francisco, which enables us to provide unparalleled installation and service to the entire state.
Our solar developers offer a turnkey solution with asset management for the entire life of your solar asset. Unlike traditional solar installers, our commitment to our clients goes beyond the installation alone. When you choose us, we treat you like family and always make sure to explain the entire solar process from start to finish.
Every one of our installations carries a 25-year performance guarantee, which means we always fix underperforming systems at no cost to you, including labor and parts. We also offer an industry-leading 25-year roof integrity warranty. We have offices throughout California, including San Diego, Stockton, and San Francisco, which enables us to provide unparalleled installation and service to the entire state.
Services
Our team at SolarUnion is committed to delivering the highest level of customer service and satisfaction. When we say we're here to take care of your home or commercial space, we mean it. We proudly serve customers throughout California-marketing, financing, building, and operating solar systems to deliver clean electricity at affordable rates.
SolarUnion is a full-service solar electricity developer founded in the heart of Silicon Valley. We proudly serve customers throughout California-marketing, financing, building, and operating solar systems to deliver clean electricity at affordable rates. Our customers enjoy savings from day one, with cumulative savings in the thousands of dollars throughout the lifespan of their system.
As the only premium Diamond Certified Bay Area solar company in the Silicon Valley and Bay Area, SolarUnion knows how to empower you. We have handled thousands of jobs throughout California and offer solid performance guarantees for parts, workmanship, and output for 25 years. Our solar developers offer a truly turnkey solution for your space for years to come.
At SolarUnion, we understand that it is difficult to find a solar company you are confident with signing a contract for 25 years and letting them drill holes in your roof. Being Diamond Certified means that our team keeps our promises which are backed up by unbiased satisfaction, performance, and customer ratings.
Solar is becoming more and more accessible, and if you are interested in making solar power your new energy solution for your home or business, it is important to hire a company that is reliable, so you can enjoy every bit of your clean, renewable energy. Our skilled solar developers at SolarUnion are here to be your complete solar specialists, offering turnkey solutions you can count on.
Reviews (22)
William W.
Jan 27, 2022
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SolarUnion is one of the very few companies that will install solar on a foam roof. Their team was incredible in the way they staged the project and worked together with the roofing company.
First the roofers ripped off my old composite shingles and repaired the roof. SolarUnion installed brackets that anchor the solar panels on the bare plywood base. The roofers came back to spray foam to seal the brackets and completed the foam roof. Then SolarUnion came back to install the panels on the brackets that were now sealed in with foam. I'm telling you, this company goes the distance. The team
First the roofers ripped off my old composite shingles and repaired the roof. SolarUnion installed brackets that anchor the solar panels on the bare plywood base. The roofers came back to spray foam to seal the brackets and completed the foam roof. Then SolarUnion came back to install the panels on the brackets that were now sealed in with foam. I'm telling you, this company goes the distance. The team
Joseph K.
Jan 21, 2022
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I received a quote from Solar Union through Energy Sage. When I spoke with Solar Union's representative "Tom" he quoted me a second proposal for a panel system with less panel capacity but which was over 150% more than their initial quote, and almost $2,000 more then their battery quote. Even the price per watt jumped almost by $0.70 per watt with no explanation. When I asked about this dramatic price difference between Solar Union's first quote through Energy Sage, and his proposal, he told me he didn't know who at His own company prepared the Energy Sage quote and
Vincent
Jan 18, 2022
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I am buying a house and reached out to get the solar panels that are on the roof assessed to see if they need repairs or replacing. SolarUnion sent someone out and they didn't even have a ladder. They spent 0 time looking at the panels and immediately jumped into sale mode to try and convince me to buy their system and have them replace the current one. I initially ignored the emails from them but then their agent called me and I told him very sternly that I wasn't interested and to not call me again. They have continued to contact me even after I have made it explicitly clear multiple times that
Theral M.
Dec 21, 2021
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After another period of no news, there were a few weeks of back-and-forth requests being made, including trimming back 3' of hedging near where the new panel would go and the tree next to it. The next week a call the evening before a contractor was scheduled to remove the downspout and flatten the ground, followed a few days later by another contractor visit because "PGE wants a concrete pad". So at 8am the next morning they were hammer-drilling bolts into the concrete retaining wall to build forms for the concrete next to my bedroom window, and re-routed the downspout they had removed
Francisco Frias
Dec 17, 2021
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At first I didn't even want solar. Than a coworker of mine got solar and went with SolarUnion. So during the whole process I sat in to here everything that would happen and still could not believe it. So after a year of seeing his bill and mine I knew I needed to chance. at the time we were doing a remodel and talk to Randy and told him that I wanted to make the change but wasn't ready to pull the trigger. Another year went by, the whole time Randy would check in just to see how my wife and kids were doing but never asked if I was ready to make the move and that made me feel awesome not being bugged
Diego Buthay
Dec 16, 2021
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We chose SolarUnion after getting quotes via EnergySage from 3 installers. SolarUnion wasn't the cheapest, but they had a great warranty and a knowledgeable team. We wanted a ground mounted array, that would require 250ft of trenching in our sloped backyard. The job was supposed to take 3 days, but once they started digging it was clear 3 days wouldn't be enough: the slope was too steep for the trencher to work, and there were too many roots. The crew worked for 5 days with pick and axe, carefully digging the trench to avoid hurting our trees. Top notch job. The rest of the install seemed super
M. Marckek
Dec 14, 2021
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Solar Union did a great job for us. I did a lot of research and got multiple bids through Energy Sage. Nearly every company backed off with the complexities of our installation with a flat roof encumbered with multiple exhausts on top of a 3-level townhouse. Not Solar Union that patiently looked at my drawings to make some initial assessments and designs for my review. The final system design optimized solar production while respecting the construction code. They took care of all permits and inspections with the city and PG&E and were amenable to the HOA demands.
David H.
Nov 08, 2021
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Update: I called the inspector and was told they don't know why 3 separate permits were pulled if changes were made. The appointments for green tag and final sign off was schedule on two separate permits. 2 of 3 permits had open status until I called the inspector to have it cleared up. After we got the updated permits and submitted to pge then I got pto. I had to answer questions to pge even during the service upgrade. Taking measurements and tell them how the install would be. To be honest, if I didn't step in, the timeframe for pge would have been longer. You may think your doing your
Tom B.
Nov 03, 2021
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There are lots of solar providers in our area. I did several hours of research to determine which companies I felt were best for me. After soliciting bids and talking to representatives I choose SolarUnion and could not be more satisfied. They offer excellent service, competitive pricing, knowledgable advice, quick customer service and really walked me through it step by step. They acknowledged any delay and explained exactly what and when to expect. All permits, inspections, and any other bureaucratic paperwork was handled flawlessly. I followed several of their suggestions including one
Mike Sallaberry
Oct 18, 2021
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Solar Union has been great to work with! It started with a free estimate and meeting that was super informative. They turned out to be the lower bid so we went with them and, three years later, have no regrets (and much lower utility bills)! I haven't needed any service yet but if I have any experiences to add down the line, I will. I highly recommend solar panels to anyone looking for an investment that will pay for itself and then more.
Rose & Linda Hawayek & Finch
Sep 22, 2021
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I put solar panels on my home in San Francisco in 2018. Karissa Gallo was the agent I worked with. The whole process was smooth and relatively easy (The inspector had to come out twice but not a big deal). I have since sold my home and not only did I recouped my money on the solar, It actually increased the value by a very high percentage.
Karissa was and is (I have called her about the other two homes I would like to have solar put in ) always available for any questions I have.
I referred her to two of my neighbors and they also got solar and are very happy about it.
I love that solar is a
Karissa was and is (I have called her about the other two homes I would like to have solar put in ) always available for any questions I have.
I referred her to two of my neighbors and they also got solar and are very happy about it.
I love that solar is a
Sean T.
Jul 09, 2021
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We chose SolarUnion after requesting many estimates and, even beyond being a very competitive estimate, a few things set them apart.
- SolarUnion also offered a 25 year production guarantee. This gave peace of mind of a guaranteed financial benefit in addition to the environmental benefits.
- They were aware of and qualified us for two extra tax credits through GoSolarSF that other installers didn't factor in.
- They also have been very responsive and helpful through the whole process, answering HOA questions, adjusting plans and timelines, and just easy to work with.
I cannot recommend
- SolarUnion also offered a 25 year production guarantee. This gave peace of mind of a guaranteed financial benefit in addition to the environmental benefits.
- They were aware of and qualified us for two extra tax credits through GoSolarSF that other installers didn't factor in.
- They also have been very responsive and helpful through the whole process, answering HOA questions, adjusting plans and timelines, and just easy to work with.
I cannot recommend
Tina S.
May 10, 2021
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Mary O.
May 07, 2021
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We chose SolarUnion in 2017/18 because the sales person charmed my husband who had resisted the idea of personal solar panels for several years. And as we looked into the product, we became convinced that the product being sold by Solar Union was top notch, with excellent technical services quaranteed. The entire installation process went smoothly.
During the ensuing 3 years I needed technical assistance once and the problem was solved instantly ....I recommend Solar Unionwithout reservation!
Mary OConnor
During the ensuing 3 years I needed technical assistance once and the problem was solved instantly ....I recommend Solar Unionwithout reservation!
Mary OConnor
Bruce K.
Apr 05, 2021
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So my system is finally fully operational, all 14 panels...knock on wood! Honestly, I don't think I've been given the full truth, but I do believe several coincidental hardware AND software failures were involved. Hey, some small percentage of all machines are defective, I get that. But the manufacturer (Solar Edge) customer service was lousy, and Solar Union made many more screw-ups beyond installing hardware that didn't work (see my first review). I give them credit for sticking with the system until it was working (although this seems a very low bar for getting credit); I think
Matt B.
Mar 30, 2021
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I'd say overall, I had a 5 star experience getting my solar panels installed with SolarUnion. Despite COVID delays and SF city inspection back and forth, I think they were generally organized and I knew what was going on the in project. And my solar panels have been working flawlessly for several months without issue and should pay themselves off in the expected timeframe.
I started the process about 9 months ago, with an intro conversation with Ivan, no pressure, but it was easily scheduled and he explained the solar panel system choices their company has made. There is still a fair amount
I started the process about 9 months ago, with an intro conversation with Ivan, no pressure, but it was easily scheduled and he explained the solar panel system choices their company has made. There is still a fair amount
Angelica A.
Feb 02, 2021
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Going solar was something I wanted but didn't know if I can afford this project for a duplex property such as mine located in the outer sunset. I met with a few solar installers in the Bay Area and Solar Union was the only company that helps you qualify for rebates offered by San Francisco, in addition to financing options. I was able to replace the roof with a company Solar Union recommended. The whole project (roofing then solar installation) took 1 week and there were only minor findings (grounding) and resolved quickly. Thank you Solar Union team!
Margaret B.
Nov 04, 2020
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Loved the way they respected the COVID threat. They wore masks and where very professional in the way they handled this tough situation.
After reviewing two other solar companies, I chose them based on their high Yelp rating and because every single person I talked was genuinely interested in me and in my project.
The equipment they installed is rated as the best on the Market and the components were engineered to give the best performance over the life of the Solar Panels. I can watch my solar production from an app. My solar production is also reported back to Solar Union for them to use
After reviewing two other solar companies, I chose them based on their high Yelp rating and because every single person I talked was genuinely interested in me and in my project.
The equipment they installed is rated as the best on the Market and the components were engineered to give the best performance over the life of the Solar Panels. I can watch my solar production from an app. My solar production is also reported back to Solar Union for them to use
Adrian A.
Oct 02, 2020
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Solar Union was a pleasure to work with and I highly recommend them for your solar project. I am meticulous about researching all of my options and found that Solar Union provided a very competitive quote combined with great service and I appreciated that they are a local company that is very responsive. They are extremely professional and the whole process from proposal to install to rebates was smooth.
C. C.
Sep 12, 2020
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Great experience with Solar Union with planning, installation and follow up so far. We've had the system for close to a year now, and it has produced as promised. Worked with Itzel on installation and Erica assisted with the municipality rebate. They reviewed past energy usage, discussed plans for potential electric vehicle in the future, and recommended panel coverage to meet our needs. No electric vehicle, yet, but the extra capacity has helped with increased household use during COVID.
Alex W.
Aug 13, 2020
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Well, they dropped off the face of the planet. Did something happen to this company? Their rep Karissa was very on top of it and responsive in her emails, then they sent someone out to take drone shots of our house and we were told we'd hear back in a few days..... nada. I've emailed her several times asking what's going on, and if they're still interested in our project - no response. What gives SolarUnion??? Even if Karissa is no longer with your company, SOMEONE should have reached out to us.....
I'm happy to update this review if/when reasonable to do so....
I'm happy to update this review if/when reasonable to do so....
Monina T.
Feb 26, 2020
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I am very pleased with SolarUnion. After being courted by numerous Solar companies, I finally decided with SolarUnion for the following reasons: 1) They have a local office. 2) They didn't overwhelm me with phone call after phone call. 3) They were patient with me when I had to wait off on the project. 4) Their sales rep Karissa G. was very thorough and explained everything in layman terms, because buying solar is like buying insurance, not easy and definitely confusing. 5) my house has a flat roof, many Solar companies avoid working on these types of roofs, the fact that SolarUnion was
