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Solar Installer GuildUnited States · independent

Terawatt

Solar energy company · Arlington, MA

What the listing shows you

5.0★

16 Google reviews

What it doesn’t

0%

rated 1–2★

typical in Massachusetts, 2%

Newest review held

Jan 2026

newest held review 7 months old

Google's rating breakdown · all 16 reviews

Rated 1–2★
0%
typical in Massachusetts, 2%
Posted an update
—
we saw no owner post, which is not the same as none existing
Replies to reviewers
60%
of the 5 reviews we hold

Its one and two star share is 2 points below the typical installer in Massachusetts. Across Massachusetts, 107 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 5 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. Terawatt is in the highlighted group.

What reviewers said

  • 5★ · around January 2026 · the company replied

    We are very satisfied with the installation of our solar panels, a new roof and an upgraded electrical panel. I want to say thank you to Uzonna for being so amazing, he explained the process from the start and supported us throughout the project. He went above and beyond to make sure that the project was completed in a timely manner (he did all the researching, planning and cordinating). Do not hesitate to work with them

  • 5★ · around January 2026 · the company replied

    One of the most professional companies I have worked with. They care about the product, the customer, and doing what is right. I had a difficult install and the CEO came out and over saw it personally. This is not a normal thing and glad I went with this company.

  • 5★ · around December 2025 · the company replied

    Photos to show that I’m real and not AI generated alongside Uzonna, the absolute stud he is being Terawatt’s rep working alongside me to get my solar system installed. Terawatt gave me the best pricing, most UX friendly experience, and the process was seamless. If you need solar panels, go to Terawatt first and let their quoting system do the heavy lift in convincing you to go with them. Promise that you’ll get a better price and system install than other competitors.

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

  • project 4
  • customer care 3
  • professional team 3
  • simple process 3
  • bill reduction 3
  • solar panels 2
  • pricing 2
  • solar system 2
  • electrical panel upgrade 2
  • new roof installation 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.

When they say they are open

Sunday
Closed
Monday
8:30 AM to 7:30 PM
Tuesday
8:30 AM to 7:30 PM
Wednesday
8:30 AM to 7:30 PM
Thursday
8:30 AM to 7:30 PM
Friday
8:30 AM to 7:30 PM
Saturday
10 AM to 5 PM

As Google published them when we last read the listing, not a live check. Ring before you drive anywhere.

Other installers in Massachusetts

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 found nothing on a website for this company that states a warranty, a licence or how long it has traded.
  • Google publishes no street address for this company, so we cannot say which town it is based in. Arlington is the area its listing was returned for, not an address we hold.
  • 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.

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