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    NorthStar Solar

    4.8 (120 reviews)
    Open 8:00 am - 5:00 pm

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    Jason D.

    With a large EV vehicle, a Plug-in hybrid, and constant energy rate increases, we knew we had to go solar ASAP. After quite a bit of research and discussions with different solar companies to learn about the differences of buying, leasing, or other options, I spoke with the team at NorthStar Solar. They were very friendly, professional, and straightforward about their offering. They asked about other companies we had spoken with and provided multiple estimates based on their recommendation as well as comparable builds to the estimates we received from other companies. From initial call to completion was ~6 weeks, and the actual build was done in less than 3 days. We were quoted 3-4 months with other companies along with a lot of extra equipment and construction that seemed unnecessary. The fact that they are local to the Tri-Valley, and diversified as a roofing company, also was a big selling point. Their ongoing system monitoring and ability to come out quick if something goes wrong down the line was our main decision for going with them. Having received a pitch from a large company offering a 'power purchase agreement' style lease where we are effectively being charged an equipment rental rate that is "cheaper than PG&E rates" but not enough to offset expected sun production on our roof ultimately seemed too opaque of a business offering to see any real cost savings. Plus, being able to capitalize on the federal credits of owning a system vs. leasing with a big company covered about 1/3 of the total cost to buy. Definitely recommend NorthStar Solar from start to finish!

    andy w.

    My wife and I have been researching installing solar panels and a backup battery system for our house for a while due to the desire to mitigate against rolling power outages as well as ever-increasing PG&E rate increases. I researched and contacted a few California-based solar installation companies that can do solar+battery+new roof installation (our existing roof was 20 years old and I wanted to take the opportunity to replace it) under a single contract. The companies I talked to either don't do roofs or subcontract them to another roofing company. On top of that, getting a straight answer on how many solar panels I need as well as the type of battery system I'm interested in was difficult and frustrating. Luckily, a friend who had solar panels installed on his house in San Bruno, recommended I check out Northstar Solar Inc which is based in Danville. From initial contact with Northstar to post-installation, the team at Northstar was top-notch in communication, product knowledge, project management, and installation. We ended up selecting an 8.2KW capacity solar installation and a 10kW battery backup system from Enphase. For the roof, we went with Landmark Solaris tile roofing. Once the configuration and contract were agreed to and signed, Northstar started scheduling roof pre-inspection and filing all the necessary permits and paperwork needed to do the installation. Along the way, the project team informed me of the status of permits (including PG&E NEM application), installation, and the payment schedule for each milestone. We started the conversation with Northstar in mid-August and signed the contract in September. I told Northstar I wanted to have everything completed before year's end so I could get the full tax credit for 2023. They assured me they would complete the project before year's end and they totally delivered. Roofing installation was about 5 days and actual solar+battery installation and configuration took 3 days (they had to wait for the roof installation to complete and "dry" before they could do the solar installation). The installation team was super professional, cleaned up each day, and did a superb job in mounting the panels and batteries. Many thanks to Sean, Daniel, Ryan, and the Northstar team for making this installation so painless. I highly recommend anyone looking at installing solar/battery/re-roofing with a single local company that is professional and price competitive to talk to Northstar. And if you do go with @northstar Solar Inc, please use my name for the referral.

    Northstar Solar helped us get into NEM2 in April 2023, when there were just days left to apply for that program and other solar companies were refusing to guarantee that they would get the application submitted in time. This was an indicator of their superior planning ability. When we had the work done in 2024, Northstar completed everything very efficiently and with great communication. We are very happy with the installation of our solar panels and all the peripherals that went into the system. We would highly recommend Northstar to anyone in the Bay Area who is looking at installing a solar power generation system. We worked with Sean Rodrigues (510.862.7404) to start the system sizing process.

    Battery and solar inverter

    The team at Northstar was exceptional at every step. I was eager to find a single contractor to replace my roof and install a new solar setup and a battery. They delivered as I hoped and were able to come in with a super competitive offer even compared to other separate bids for roof and solar. The installation teams were super clean, punctual, did great work and made sure I was aware of the plan and progress all throughout the journey. All the staff were so hard working- I was so impressed by their commitment. My guy Pierce who quoted everything out said they would really excel in customer service too and he was SO RIGHT. When/if I move, I'll definitely be a repeat customer.

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    Unprofessional. We requested pricing for commercial project. Didn't get back. Wasted out time.

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    Page 1 of 3

    Ask the Community - NorthStar Solar

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    Review Highlights - NorthStar Solar

    Quality components, excellent team (Dan, Ryan, Danielle, and team) that understands what they are doing.

    Mentioned in 56 reviews

    Read more highlights

    Two Brothers Roofing

    Two Brothers Roofing

    4.8
    (44 reviews)

    We have used TB Roofing several times for both new roof installation and repairs of older roofs…read more They are family owned and wonderful to work with. Their work is exceptional. Highly recommend.

    I had a great experience using Two Brothers Roofing. They were responsive, transparent, and seemed…read morefairly priced. They appear to have done a great job on a small to moderate roof repair from a leaking easement on my home. They were very responsive from the Yelp inquiry and sent out someone a day or two later who seemed experienced and forthright (Dario). He was able to immediately diagnose the source of my water entry (something another company had missed or tried to upsell on diagnosing it a different way). He was willing to walk me through what he was seeing on the roof and also took photos clearly showing the issue. While he was up there, I brought two other minor issues I'd been meaning to take care of and he was happy to take photos and add them to the quote (cracked vent seal and small area of entry into the attic). They put together a formal quote and proposal within a few days and I was able to talk with one of the owners (Jason) on the phone to discuss the questions I had. He was willing to work with me on alternative (less expensive) options on one of the repairs I was requesting and walked me through the pros/cons. Felt like he really understood what I was looking for and took the time with me, even though I know it was a small repair for them. They completed the work in one day, within a week of deciding to move forward. Payment was easy and online with an immediate receipt. Price seemed fair --- bay area expensive, but worth not doing the work myself for this situation. I'd look to them first for any future work.

    Tri Valley Roofing

    Tri Valley Roofing

    5.0
    (56 reviews)

    TriValley recently completed the roofing and gutter/downspout replacement at my home, and they did…read morean outstanding job. I highly recommend them to anyone considering similar work. A few highlights: Brandon was fantastic to work with--professional, patient, and always willing to answer every question to make sure I felt confident throughout the process. He even made extra trips to my home to drop off and pick up gutter and shingle samples so we could choose the perfect colors. Brandon also kept me consistently updated on progress and what to expect at each stage, which I truly appreciated. I especially appreciated how quickly and thoughtfully the team responded when the weather changed unexpectedly. Even the owner, Ryan, came out to my home--along with Brandon and the crew--to stay late and make sure protective underlayment was fully installed before the rain started. Their urgency and care gave me tremendous peace of mind. The crew--Christian, Ricardo, and Eddie--did an excellent job with the daily cleanup. I didn't find a single nail or piece of metal on my driveway, the street, or in my backyard after they were done each day. They were professional, friendly, and incredibly efficient. They completed the entire project in just four days, and the city inspection passed with no issues.

    Tri Valley replaced one large custom skylight that was starting to crack, repaired another skylight…read morethat had begun leaking, and completed miscellaneous maintenance on the roof as part of the job. From the start, Ryan outlined all the different options for addressing the work in a detailed and straightforward way. His team was a pleasure to work with and their pricing was reasonable for the work I needed completed at my home. Highly recommend Tri Valley for any roofing needs.

    Apollo Roofing Company

    Apollo Roofing Company

    4.7
    (223 reviews)

    We have known we needed our roof repaired for a while, but it turned out it needed replaced! I…read morecalled 3 highly reviewed roofing companies in the Bay Area. 2 came out and gave me quotes, 1 no showed. Out of the 2 that came out, I choose to go forward with Apollo Roofing. I chose them for 2 major reasons. 1) they were going to deal with the scheduling of the removal and réinstallation of our solar panels. And 2) Shahar was so kind, informative, and honest during our consultation. He was through and kept us updated every step of the way. When our project finally started the crew were so respectful and kind! We found way more damage than we expected which resulted in our quote going up. However, due to Shahar being honest at the consultation we knew this was a possibility so it wasn't super shocking. The crew was great at cleaning up at the end of every day, which we appreciate as we have chickens, ducks, a puppy and cat as well as a child who are outside. When the project was done, there were a few concerns we had, we talk to Shahar and he quickly corrected and had the crew fix the items. Our roof is beautiful and will hopefully last many many years to come. I am thankful we went with Apollo Roofing and Happy Shahar was our project manager.

    Apollo roofing helped us replace our roof last month, and they did a great job! As they removed the…read moreshingles, they found holes in our roof and shared those pictures with us. After replacing the boards, the showed us the pictures again and kept us updated. They also helped us replace some of the fascia that was rotten. Overall, their team is efficient and they tried their best to keep us updated throughout the process. There was a lot of debris as they removed the old roof, but they did a very good job cleaning up the areas around the house. One of the electrical circuits blew out during the process, but Apollo sent one of their electricians to ensure that it was fixed. Of course, the roof is one of those things where only time can tell, but we are hopeful that our new roof will last us quite some time!

    Equinox Roofing

    Equinox Roofing

    4.8
    (241 reviews)

    We had to replace our entire roof on a Midcentury Modern House - which can be daunting as it needs…read moreto be done right due to potential drainage issues, ponding of water and other concerns that come with torch-down flat roofs of the era. (As well as we wanting to adhere to the true aesthetic style of clean lines and edge profiles) We received 5 quotes and chose Equinox Roofing and we are glad we did. They were not necessarily the cheapest, but the price was competitive, they had a well outlined proposal, great reviews, and there were not any big surprises throughout the process that were not in line with what was outlined in the proposal. Ben, Abel (as the PM) and the entire crew were professional, responsive and worked rapidly to replace the roof in-between rainstorms that surprisingly popped up unannounced on the forecast. They resculpted previously problematic drainage areas through thoughtful insulation techniques that led to improved drainage flow and removed ponding issues that were there with the previous old roof. They also did a great job cleaning up at the end of each day. My wife and I are in the design industry, so we can be overly picky and there were a few tweaks we asked them to do throughout the process - which they did without any hesitation. You can tell they care about their craftmanship. Highly recommend Ben and the Equinox Roofing team.

    We had another roofing company tell us that we needed a complete roof replacement, which would have…read morebeen a very expensive job. Before making a decision, we asked Equinox Roofing for a second opinion, and we're so glad we did. Ilia came out on time, thoroughly inspected our roof, and provided the inspection completely free of charge. Instead of trying to sell us a new roof, he honestly told us that our roof still has plenty of life left. He pointed out a few minor issues that needed attention and even explained how we could easily fix them ourselves. It's rare to find someone who is this honest, knowledgeable, and communicative. At no point did we feel pressured into unnecessary work. We really appreciated his professionalism and integrity. We are very thankful for Ilia's honest advice, and when the time eventually comes for a new roof or any roofing work, Equinox Roofing will be the first company we call. Highly recommend!

    Dependable Roofing

    Dependable Roofing

    4.4
    (126 reviews)

    We recently had our roof replaced by Dependable Roofing, and I cannot say enough good things about…read moreour experience. From my very first phone call through the final walkthrough, their customer service was absolutely outstanding. Every interaction--whether with the office staff or the field team--was professional, courteous, and genuinely helpful. They took the time to explain each step of the process clearly, which gave us so much confidence moving forward. The onsite crew was incredibly skilled and efficient, and what impressed me most was how clean and organized they kept the worksite throughout the entire project. It's rare to see that level of care and attention to detail. It's clear that this company takes pride in their work and values their customers. I would highly recommend Dependable Roofing to anyone looking for quality workmanship and a stress-free experience. Thank you again for such an amazing job!

    We couldn't be happier with our experience with Dependable Roofing! From the very beginning, the…read moreentire process was smooth, professional, and stress-free. They took the time to explain all of our roofing options, answered every question we had, and helped us choose the solution that best fit our needs rather than trying to upsell us. Their pricing was also one of the lowest quotes we received, making the decision even easier. Everyone we interacted with, from the office staff to the installation crew and project managers, was incredibly knowledgeable, courteous, and professional. The office team was especially responsive, quickly answering our questions and revising estimates whenever we requested changes. One thing that really stood out was their commitment to quality. Before the project was considered complete, a quality control representative walked the entire job with us, carefully inspected the work, and made a few final touch-ups to ensure everything was perfect and that we were completely satisfied. The finished roof exceeded our expectations, and it's clear they take great pride in their workmanship and business. If you're looking for an honest, reliable, and professional roofing company, I highly recommend Dependable Roofing!

    NorthStar Solar - solarinstallation - Updated July 2026

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