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Solar Installer GuildUnited States · independent

Hamilton Ferris Co - Power Products

Solar energy equipment supplier · Buzzards Bay, MA

What the listing shows you

3.5★

4 Google reviews

What it doesn’t

50%

rated 1–2★

typical in Massachusetts, 2%

Newest review held

Jul 2026

newest held review this month

Google's rating breakdown · all 4 reviews

Rated 1–2★
50%
typical in Massachusetts, 2%
Posted an update
—
we saw no owner post, which is not the same as none existing
Replies to reviewers
0%
of the 4 reviews we hold

Its one and two star share is 48 points above the typical installer in Massachusetts. Across Massachusetts, 6 of the 198 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 Massachusetts, on one axis

none

1–5%

6–10%

11–20%

over 20%

Every company we hold in Massachusetts whose Google breakdown has been read, grouped by their share of one and two star reviews. Hamilton Ferris Co - Power Products is in the highlighted group.

What reviewers said

  • 2★ · around August 2019

    I have one of their alternators, looks well made but me being in europe it does not seem to work with local regulators. If you buy an alternator from these people and you live outside the US make sure it either has a regulator built in or buy perhaps a regulator of the same brand. Also, it doesn't fit properly on the engine it is designed for. I managed to modify the fittings but still... I probably opt for a different brand. Service seems ok but do allow for up to a few days for them to respond by email.

  • 5★ · around August 2018

    They have stood behind their products for me.

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

    “in the rugged marine environment for over 35 years. We can help you realize your dream…”

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 Hyannis

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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