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Solar Installer GuildUnited States · independent

Inter-Island Solar Supply

Solar energy equipment supplier · Keaau, HI

What the listing shows you

4.0★

4 Google reviews

What it doesn’t

25%

rated 1–2★

typical in the Hilo area, 2%

Newest review held

Apr 2026

newest held review 5 months old

Google's rating breakdown · all 4 reviews

Rated 1–2★
25%
typical in the Hilo area, 2%
Posted an update
—
we saw no owner post, which is not the same as none existing
Replies to reviewers
75%
of the 4 reviews we hold

Its one and two star share is 23 points above the typical installer in the Hilo area. Across Hawaii, 8 of the 87 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 4 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 Hilo area, on one axis

0% rated 1–2★75%

Each mark is one company we hold in the Hilo area whose Google breakdown has been read, placed by its share of one and two star reviews. Inter-Island Solar Supply 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 September 2020 · the company replied

    Never called me back (Vince) after repeated calls. Was told numerous excuses why the person I was attempting to contact wasn’t able to talk with me. They have two locations one in Hilo and one in Kona and both operate similarly. No customer service what so ever and their products are way over priced. I found an inverter on amazon delivered to my door for $427...this company wanted over $600 on one quote from Hilo and in the high $500’s in Kona???? Who’s running that place!????

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.

  • Years in business

    “using Inter-Island Solar Supply for over 17 years…and counting. They not only provide…”

Elsewhere

  • Google also lists this company under insulation.

When they say they are open

Sunday
Closed
Monday
7 AM to 4 PM
Tuesday
7 AM to 4 PM
Wednesday
7 AM to 4 PM
Thursday
7 AM to 4 PM
Friday
7 AM to 4 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 Hilo

1–2★3★4★5★gauge 0–20%typical here, 2%

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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