Sunternal

Each mark is one company we hold in San Jose whose Google breakdown has been read, placed by its share of one and two star reviews. Sunternal is the red one. The amber line is the middle of that set, which includes suppliers and maintenance businesses as well as installers.

• 1★ · around August 2025

  It’s truly disheartening that this company steals from others. They have failed to pay our small company. At this point we do not know what to do.

• 1★ · around August 2025

  I waited a year to finally post this review. I went into my solar installation with a 5 star experience. Unfortunately, after the contract was signed and the solar panels installed, the customer service for Sunternal went to non-existent. I was told by the sales agent Brian Nadeau that we would be receiving an additional referral fee because we were installing two homes at once. He made excuses on why it was taking longer to send the check and eventually stopped picking up my phone calls. Ultimately, we never receieved the addtional referral that we were promised. Noth homes ran into issues wi

• 1★ · around August 2025

  Sunternal is a nightmare for us. Since a consultant to our door and gave us a great pitch, until now has been 15 months. Our solar is still not running. During these 15 months, Sunternal damaged our roof, put a foot through our ceiling, didn’t cover right, that night, storm came and our bedroom ceiling collapsed at 4am. Everything up in the attic and debris from our came into our bedroom. Water everywhere. We try to save our brand new hardwood floor, lots clean up and try to stop water coming in which was not possible since it’s a large hole from the roof. After the roof. They went dark. Canno

• 3★ · around August 2021 · the company replied

  I was never sent an email with the name of the app to monitor the solar panels. I still don’t have the app. Searching on YouTube or the App Store gives many options and I am not able to determine which one to connect to my panels with. When I emailed my contact I was directed to search google or YouTube. I would give it a lower score because this is disappointing but the Service was great until I was not given an email with directions how to connect to the app or at least the name of the app.

• 5★ · around August 2024

  I got installed an year a ago, and everything went really well with the installation. The Sunternal team was very quick to respond my request to install bird nets. I love the Enphase technology that help me track my productions every day. Overall I had an excellent experience with Sunternal.

• 5★ · around August 2024

  Everything went as expected. Design and construction and implementation were set up and the schedule was fallowed perfectly. I will know more after January, after a full year I will be able to figure out my monthly savings, so far, I believe I am saving more than $300.00 a month. That is fabulous.

• 5★ · around August 2024

  Sunternal made the process of purchasing and installing solar panels smooth and easy. The 30 year warranty is better than any other company can offer.

Reviewer names are not published here. Negative reviews are shown first because they are the ones a listing hides, not because they are more representative.

• solar panel installation 20
• quick inspection 8
• quick installation 8
• knowledgeable consultant 5
• informative staff 4
• installation crew 3
• permit process 3
• installation speed 3
• solar panel design 3

Topics Google derives from the review text, with how often each appears. A frequent topic is not a good one: “price” turns up in praise and in complaints alike.

• It is also reviewed on Yelp and the Better Business Bureau. Worth reading before you sign anything: those are a different crowd, and the complaints that reach the Better Business Bureau rarely reach Google.

Google’s own “people also viewed” set, in Google’s order. It is Google’s comparison, not ours.

• Simmitri, Inc.4.9★ · 101
• Auxin Solar Inc.2.0★ · 64
• SolarGuru Energy4.0★ · 3

The ones without a link have no page here, either because Google does not categorise them as solar businesses or because we could not match the name to a listing with confidence.

• CompanyRating breakdown1–2★Newest review held

• EnergyAid

  4.8★ · 884 reviews · Fremont, CA

  3%
  Newest held review 3 months old

• Infinium Solar, Roofing and Electric

  4.9★ · 345 reviews · Campbell, CA

  2%
  Newest held review this month

• Poco Solar Energy Inc

  4.8★ · 279 reviews · Santa Clara, CA

  3%
  Newest held review this month

• TN Electrical and Solar Services

  5.0★ · 122 reviews · Milpitas, CA

  1%
  Newest held review this month

• Cinnamon Energy Systems, Inc.

  4.8★ · 102 reviews · Los Gatos, CA

  4%
  Newest held review this month

• Simmitri, Inc.

  4.9★ · 101 reviews

  1%
  Newest held review this month

Ordered by how much we can tell you about each, which is not an order of quality. We do not know which of these is better and would not say if we did.

• —The date above is the newest review we hold, which is not necessarily the newest that exists — we hold a large share of Google's reviews, not all of them.
• —We found nothing on a website for this company that states a warranty, a licence or how long it has traded.
• —We do not verify licences, insurance or bonding. Nothing here has been checked against a state licensing board.
• —We cannot tell you what an installation costs, and we hold nothing about the equipment they fit.

Something wrong here? Tell us and a person will read it.