Critical Mass Solar

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

• 1★ · around February 2026

  See edit at the end. I spent many weeks collecting quotes from 7 different solar installation providers including Tesla, Palmetto, Evergreen, Boston Solar, Valley, and Momentum. I compared the brand/quality of the panels, the total system kWh, warranties, finance rates, professionalism, and something that is important to me - how obnoxious and pushy the sales representative is. I didn't even consider collecting a quote from SunRun due to the sole fact that they would send sales people to my house multiple times a week at completely unreasonable times for months on end. It doesn't matter how ma

• 1★ · around August 2024 · the company replied

  I cannot recommend Critical Mass Solar at all, even though I initially had high hopes for them. …

• 5★ · around October 2025 · the company replied

  We had an awesome experience with Critical Mass Solar! Their pricing was very competitive and they had by far the quickest timeline to complete the installation versus all other solar companies that we talked to. Our solar system was up and running in less than three months from when we first reached out to Critical Mass solar. Every other company that we talked to was a five to six month wait. Critical Mass Solar was very helpful and responsive to all questions that we had. I highly recommend going with them!!

• 5★ · around August 2025 · the company replied

  After meeting with 6-7 solar installers, we went with Critical Mass for our solar install. Freddy was very friendly and knowledgeable and not at all pushy. He gave us the two options available during our meeting and sent over the spec sheets to compare. When we were about ready to make a decision, he let us know he got in a few LG panels (our 1st choice) and gave them to us for a great deal. We were quoted these same panels from a large local installer and Critical Mass beat their price by $6k with 5 more panels than the big guys. They were also able to get our install completed within a month

• 5★ · around August 2025 · the company replied

  We had Solar installed two years ago by Critical Mass Solar. We were impressed by how smoothly the process was from start to finish. Freddy answered all questions in a timely manner during the whole installation . My daughter was so impressed that her and her husband had a system put in this past fall. Now we are both enjoying the benefits of solar energy Thanks to Critical Mass 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.

• friendly team 16
• solar installation 15
• seamless process 8
• quick installation 6
• professional crew 5
• responsive staff 4
• competitive quote 4
• bill savings 3
• fast timeline 2
• clean installation 2
• electrical company approval 2
• experienced installer 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.

Taken from its own website. We have not checked any of it, and a sentence on a website is not evidence.

• Financing

  “of incentives, tax credits, and financing options Custom solar system design for…”

• Warranty

  “like family. ✅ Industry-Leading Warranty – Enjoy a 25-year warranty for…”

• 24/7 availability

  “the grid Pair with solar panels for 24/7 renewable energy use Whether it’s for…”

• Family owned

  “Massachusetts and New Hampshire. As a family-owned company, we prioritize honesty,…”

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

Google’s own “people also viewed” set, in Google’s order. It is Google’s comparison, not ours.

• Intelligent Solar5.0★ · 45
• Brightstar Solar4.9★ · 103
• Great Sky Solar5.0★ · 775
• Leominster Solar Solutions5.0★ · 5

• CompanyRating breakdown1–2★Newest review held

• New England Clean Energy

  5.0★ · 17 reviews · Hudson, MA

  0%
  Newest held review this month

• Sun Diagnostics

  5.0★ · 10 reviews · Westford, MA

  0%
  Newest held review this month

• Solamp, Inc.

  5.0★ · 3 reviews · Maynard, MA

  0%
  Newest held review 8 months old

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.

• —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.
• —Google publishes no street address for this company, so we cannot say which town it is based in. Billerica 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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