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    NorthStar Solar

    4.8 (126 reviews)
    Closed • 8:00 am - 7:30 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.

    Two 5kWh batteries

    Update April 2025. It's been 1.5yrs now and we're still 100% satisfied with our roof and solar/battery system. Adding a pic from the Enphase app to show production and consumption in 2024.

    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

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    2 years ago

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

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    Page 1 of 4

    Ask the Community - NorthStar Solar

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    Review Highlights - NorthStar Solar

    “Ryan and the Northstar team were absolute champs at removing and reinstalling the new system for us.”

    Mentioned in 58 reviews

    Read more highlights

    Two Brothers Roofing - Roof replacement

    Two Brothers Roofing

    (45 reviews)

    We recently purchased a house and required a new roof. Two brothers was recommended by our agent…read moreand all went incredibly smoothly. Not only were they responsive & professional, but they went out of their way to complete the job quickly as our new home insurance company suddenly decided to cancel the insurance as they were expecting to see a new roof rather quickly. Keith dealt with the problem with sensitivity, respect and humor; the job was moved up and so it was completed in plenty of time to address the insurance issue. He was very helpful in helping us with our roofing options, types of shingles and need for vents. No pushy sales techniques. And they did a beautiful job.  All employees were polite, respectful and hardworking...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.

    Apollo Roofing Company

    Apollo Roofing Company

    (235 reviews)

    SoMa

    I hired Apollo Roofing Company to install a new 4500 sqft modified bitumen flat roof on my 65 year…read moreold apartment building in San Francisco. I received quotes from 5 other roofers and Apollo's representative Nate Givati's proposal was the most responsive and detailed. I had some concerns about water pooling on the old roof, and Nate provided a very detailed proposal to address the problems. The installation process went smoothly and on schedule with excellent communication throughout the process.

    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.

    First Tier Exterior - Another Completed Project by First Tier Exterior!

    First Tier Exterior

    (213 reviews)

    We had a great experience with First Tier Exterior for a fairly extensive stucco repair project…read more Once work began, they discovered two layers of existing stucco, which made the job more complicated than expected. They clearly explained what they found and handled the additional work professionally. The crew was experienced, hardworking, and paid close attention to the underlying waterproofing and construction details. The finished stucco looks excellent, and they also did a thorough cleanup afterward. Bruce, Felix, and the team were responsive throughout the project and easy to work with. Overall, we're very happy with the quality of the work and would definitely recommend First Tier Exterior. (p.s., we specifically didn't really care if the color should be a perfect match to the old stucco)

    I recently had my roof replaced with First Tier Exterior (with Miguel as the project manager). From…read morethe initial estimate Miguel was professional, informative, and receptive to what I was looking for in replacing my nearly 30 year old roof. Despite having met with eight different contractors I ultimately felt most comfortable with and decided to proceed with Miguel and First Tier. Overall I couldn't be happier with the work that was done. The project was completed in two days and the quality of work seems to be of high standard. I have since received many compliments on the updated roof and will continue to recommend Miguel and First Tier to my friends and family.

    Maciel Roofing Construction

    Maciel Roofing Construction

    (126 reviews)

    Our new roof, gutters, and downspouts look so beautiful…read more The crew literally worked rain and sunshine in this weird Bay Area weather and even helped my husband bring the new mattress that was delivered outside into the house. 1000% recommend Maciel Roofing!

    We engaged a roofer to assess several rust-through spots occurring on five long panels. Upon…read moreinspection, the roofer immediately attributed the cause of the rust to the solar installer, effectively deflecting responsibility. However, the evidence does not support this conclusion. Our roof consists of two levels, and we observed rust on several spots across five long panels--many of which are not adjacent to the solar installation. Furthermore, the upper level of the roof, which has no solar panels whatsoever, also exhibits couple similar rust spots. These observations strongly suggest that the rust is not caused by the solar installation but rather stems from a material or manufacturing defect. Despite these panels carrying a 50-year life warranty, the roofer was quick to claim that the rust is not covered under the manufacturer's warranty. This is deeply disappointing, particularly given the clear evidence that the damage extends well beyond any area impacted by the solar work. The roofer demonstrated no willingness to help address the issue and offered no solution for the roof leak currently occurring at the lower level. The lack of accountability and absence of any proposed remediation is unacceptable given the scope of the defects observed.

    NorthStar Solar - solarinstallation - Updated October 2026

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