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Solar Installer GuildUnited States · independent

Heliodyne, Inc.

Solar hot water system supplier · Richmond, CA

What the listing shows you

4.5★

6 Google reviews

What it doesn’t

0%

rated 1–2★

typical in California, 1%

Newest review held

Jun 2026

newest held review 3 months old

Google's rating breakdown · all 6 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 6 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 6 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. Heliodyne, Inc. is in the highlighted group.

What reviewers said

  • 4★ · around September 2022

    Trucker from I-80 use only central ave to leave freeway, this facility got only one dock from s50th st. Truck gate on this street too but you need backing by right side. Short trailer is better for this facility.

  • 4★ · around September 2022

    Update 11/2021: About two years ago, we finally had an amazing tech who Heliodyne recommended come out and take a look at our system and he found several installation errors that the the installer (Advanced Home Energy - now out of business) and others had not yet identified. It now works like a charm. If you are having problems with your system and live in the SF Bay Area, contact Heliodyne and ask for good techs - they know who is qualified to fix it. As a conservation scientist working to advance climate change solutions, I LOVE the concept of all things solar, and this past summer, we inst

  • 4★ · around September 2016

    We've had a fairly positive experience with our Heliodyne solar hydronic system. Eight months into its operation, the Heliodyne componentry has proven to be reliable and just whirrs along. They could improve is the WiFi interface -- you have to connect to the unit's own WiFi transmitter, rather than interfacing via your regular network, which in this case means you need an older version of Windows that can be dedicated to talking to the hydronic system. I just use an old laptop that I keep around for this. Having said all of that, my experience has been that solar hydronic systems are not for

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 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.

  • Established

    “in solar water heating technologies. Since 1976 we have innovated the category and…”

  • Years in business

    “both engineers and contractors. With more than 35 years of experience in solar hot water,…”

Elsewhere

  • It posts on Facebook and LinkedIn. A page that stopped posting years ago tells you something a listing will not.

When they say they are open

Sunday
Closed
Tuesday
8 AM to 5 PM
Wednesday
8 AM to 5 PM
Thursday
8 AM to 5 PM
Friday
8 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 Mill Valley

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 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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