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Solar Installer GuildUnited States · independent

Infinium Solar, Roofing and Electric

Solar energy system service · Campbell, CA

What the listing shows you

4.9★

345 Google reviews

What it doesn’t

2%

rated 1–2★

typical in the San Jose area, 4%

Newest review held

Aug 2026

newest held review this month

Google's rating breakdown · all 345 reviews

Rated 1–2★
2%
typical in the San Jose area, 4%
Posted an update
2 days ago
the company posting to its own Google profile
Replies to reviewers
79%
of the 345 reviews we hold

Its one and two star share is 2 points below the typical installer in the San Jose area. Across California, 704 of the 1,529 installers whose breakdown Google has published carry a higher share than this one.

The percentages are Google’s own arithmetic over every review it holds, not a sample we assembled. Separately we hold 345 review texts for this company, quoted below. Google publishes review ages rather than dates, so every date here is approximate.

Every company we hold in the San Jose area, on one axis

0% rated 1–2★40%

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

What reviewers said

  • 1★ · around August 2026 · the company replied

    One of your company cars were speeding beyond reason over the limit, driving erratically and almost ran both myself and another vehicle off the road. You complained about me not having words to this review well here they are - with what I witnessed, the person driving should’ve been arrested. Absolutely despicable, endangering others lives like that. Do better.

  • 1★ · around August 2026 · the company replied

    I am a property manager, and I chose Infinium Solar for a newly built ADU solar project. Unfortunately, my experience was extremely disappointing. If you value your time and want to avoid unnecessary stress managing your own solar installation, I would not recommend using Infinium Solar. The sales process was positive. Marcia from sales was responsive, provided different options quickly, and was easy to work with. We selected Infinium Solar because of their good reviews, our positive experience with Marcia, and pricing approximately 5% lower than other companies we contacted. Unfortunately, af

  • 2★ · around April 2026 · the company replied

    Initial experience was good in that they were responsive and quickly asked for a lot of details regarding my project, but after those first few days I've gotten thoroughly ignored despite reaching out multiple times. Perhaps my project is not attractive to them, but just ignoring a customer for over 2 months does not seem like a great way to run a business.

  • 3★ · around December 2025 · the company replied

    A simple removal and reinstall of a solar system took them 5 months and the output of the system dropped 50% after they reinstalled it. They did not even know city requirements to get a permit for the job. Edit: The owner is responsive after you leave a bad review and will work with you to improve the review. They fixed some of the issues but some issues like leaving a pipe uncapped after removing a solar water heater is not fixable at this point.

  • 5★ · around August 2026 · the company replied

    The company that installed our solar panels went out of business. Infinium did a great job servicing one of our inverters that went bad. Final price was as quoted with no hidden fees. The team followed up with every phase of the installation. Thank you to Tavee, Lou, and Gilbert for the excellent service.

  • 5★ · around July 2026 · the company replied

    We used Infinium Solar services before to install a 5KwH Solar system in our home, which worked flawlessly for many years. Now -- it was time to upgrade with 2 Franklin home batteries to take us off the grid. Infinium Solar did an AMAZING job designing the layout, getting permits, ensuring everything is installed and setup correctly to make our home fully independent of the grid. Infinum also accommodated take-down and re-install of the solar panels as we were replacing the roof (it added to complexity of the project). Kudos, Jeff, Dai, Ji, Jiel, Jerome and team!! Kirill PS we just installed S

  • 5★ · around July 2026 · the company replied

    "Choosing Infinium Solar was one of the best decisions I've made for my home. They are transparent, competitive, and truly care about their customers. A massive thank you to Jiel Justo and the rest of the crew for going above and beyond to ensure my system was set up perfectly. Jiel's professionalism and expertise made the whole experience completely worry-free. 5 stars all the way!"

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.

What reviewers keep mentioning

  • batteries 61
  • permitting 31
  • responsive staff 29
  • solar system installation 22
  • quick response 18
  • quick installation 14
  • installation process 12
  • battery installation 12
  • warranty replacement 11
  • quick issue resolution 5

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.

What the company says about itself

Taken from its own website. We have not checked any of it, and a sentence on a website is not evidence.

    Its website also mentions warranty, established, insured and licensed, but not in a sentence we can quote cleanly.

    Elsewhere

    When they say they are open

    Sunday
    9 AM to 5 PM
    Monday
    8 AM to 7 PM
    Tuesday
    8 AM to 7 PM
    Wednesday
    8 AM to 7 PM
    Thursday
    8 AM to 5 PM
    Friday
    8 AM to 5 PM
    Saturday
    9 AM to 5 PM

    As Google published them when we last read the listing, not a live check. Ring before you drive anywhere.

    Who Google shows alongside them

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

    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.

    Other installers around San Jose

    1–2★3★4★5★gauge 0–20%typical here, 4%

    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.

    What we don't know

    • 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 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.

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    Claim this listing to become its verified contact: correct your own phone number, hours and description, and hear first if anything here changes. Free, reviewed by a person — and it changes nothing about the numbers.

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