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Solar Installer GuildUnited States · independent

Corda Solar

Solar energy system service · Danville, CA

What the listing shows you

5.0★

10 Google reviews

What it doesn’t

0%

rated 1–2★

typical in California, 1%

Newest review held

Jul 2026

newest held review this month

Google's rating breakdown · all 10 reviews

Rated 1–2★
0%
typical in California, 1%
Posted an update
—
we saw no owner post, which is not the same as none existing
Replies to reviewers
0%
of the 10 reviews we hold

Its one and two star share is 1 point below the typical installer in California. Across California, 788 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 10 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 California, on one axis

none

1–5%

6–10%

11–20%

over 20%

Every company we hold in California whose Google breakdown has been read, grouped by their share of one and two star reviews. Corda Solar is in the highlighted group.

What reviewers said

  • 5★ · around July 2026

    I use Corda Solar for my pool Solar installation. They were priced competitively and got the job done quickly. Customer service was prompt and responsive. Highly recommend.

  • 5★ · around October 2025

    We recently had two Tesla Powerwall 3 units installed by Corda Solar in Danville, and we couldn’t be happier with the entire experience! From start to finish, everything went seamlessly, with no surprises along the way. The quote process was straightforward, and the coordination with PG&E was handled flawlessly. A huge shoutout to Sara, Michael, Jennifer, and owner Nathan for their exceptional support, as well as the super cool installation crew who did an amazing job. The prompt email responses, thorough follow-up, and top-notch post-installation support truly set them apart. Highly recommend

  • 5★ · around August 2025

    Great company to do business with. Nathan and his team of installers were very knowledgeable and answered any questions I had. They are local here in Danville Ca. and could not have done a better job on the installation. From the very first time I met with Sara (salesperson) to the completion of Solar panels/Powerwall install was exactly one month. Couldn't be happier. John S.

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

  • email 2
  • pricing 2
  • company 2
  • roof 2

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.

Elsewhere

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

When they say they are open

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

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 Ramon

1–2★3★4★5★gauge 0–20%typical here, 1%

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 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.

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