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Solar Installer GuildUnited States · independent

Harmon Solar

Solar energy company · Phoenix, AZ

What the listing shows you

4.3★

205 Google reviews

What it doesn’t

16%

rated 1–2★

typical in Arizona, 5%

Newest review held

Jul 2026

newest held review this month

Google's rating breakdown · all 205 reviews

Rated 1–2★
16%
typical in Arizona, 5%
Posted an update
3 months ago
the company posting to its own Google profile
Replies to reviewers
86%
of the 28 reviews we hold

Its one and two star share is 11 points above the typical installer in Arizona. Across Arizona, 59 of the 269 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 28 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 Arizona, on one axis

none

1–5%

6–10%

11–20%

over 20%

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

What reviewers said

  • 1★ · around July 2026 · the company replied

    Spoke with Dennis Alessandro, he gave an astronomically high bid, which is completely unethically priced for a job. 60k for 15 kw system with 2 batteries is abhorrent. I hope people search him and don’t get taken advantage of. When I respectfully discussed this with him he became nasty, condescending, and disrespectful, saying he had been doing this 16 years etc. Buyer beware!!!! Continued following response on 7/12/2026: This response from Harmon Solar is exactly why I left my review in the first place. After hearing that I had a bad experience with one of their representatives, their first m

  • 2★ · around August 2025

    We started in March/April and took a few weeks to get started. I was promised it would be operating in mid June. Then before July 4th it’s now July 18 and still at least a week away. I had a new upgraded panel put in and I was told 3.5% on visa etc. ok I understand that. I paid through Applepay. No fee for either party and it’s instant. Well they still charged me $70. Cameron says it’s a new policy. We charge that no matter how you pay. May 28 2025 Cameron leaves me a message. We down to the last inspection. 7 weeks and no inspection yet.

  • 1★ · around August 2025 · the company replied

    Pushy salesman! I would never use this company as long as they employ these types of people.

  • 5★ · around July 2026 · the company replied

    Recently Harmon Electric was sent to our home for repairs from our solar provider. From start to finish we were so pleased with customer service staff by phone and email, great communication and professional, kind staff! Jacob Doyle and Vincent Guzman were the electricians sent to our home. They spent over 8 hours in 110 degrees, and were as pleasant and efficient than you’d imagine working in the sun on this hot day. My husband put out folding chairs for them to cool down in the garage, and we supplied water and Gatorade. The messy and unsafe wiring the solar company (not Harmon) had created

  • 5★ · around May 2026 · the company replied

    Dennis was fantastic. He was very knowledgeable, friendly and informative. He helped me decide to put solar in and I’d highly recommend using him and Harmon Solar. Great pricing too!

  • 5★ · around March 2026 · the company replied

    Ryker has been absolutely amazing, he has helped us design out complete off-grid solar set up. As of today we have everything to run our homestead 100% solar!

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

  • solar panel installation 20
  • project management 15
  • timeliness 7
  • easy process 6
  • professional crew 5
  • neat installation 3
  • informative staff 3
  • no pressure sales 3
  • project timeline 2
  • honest sales rep 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 Fountain Hills

1–2★3★4★5★gauge 0–20%typical here, 5%

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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