Sun Diagnostics

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

• 5★ · around August 2026

  I have no hesitation giving my experience with Sun Diagnostics five stars. The service was prompt, precise and knowledgeable. It turned out that my inverter had a large mouse nest in it, including the mouse, which had become entangled with the fan. Not only was all that removed but the inverter was deep cleaned and made pristine. It was checked out and works perfectly. I’m going to add another array soon, and I’ll be pleased to work with Sun Diagnostics again when I do.

• 5★ · around August 2026

  I consulted with Steve C. of Sun Diagnostics concerning servicing my solar panel array. He reviewed the condition of my arrays remotely and was able to pursue the manufacturer of the panels and components and was able to get them to ‘ fix’ the panels remotely. His actions were swift and accurate and my panels are all working now. I just need to get them cleaned and he has sent me to a company that does just that. I am extremely happy with his responses and actions and will continue to use him when I need servicing of my panels. I highly recommend Sun Diagnostics for Solar panel servicing!

• 5★ · around July 2026

  Stephen Cuzziere provided excellent service, he came out to provide a quote for an error code showing on the inverter for our solar panels. He went above and beyond to identify and diagnose the issue, and provided next steps for a potential fix. He was very knowledgeable, honest, and straightforward to work with. I look forward to continue working with him in the future, highly recommend!

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.

• solar panel installation 5
• solar needs 3

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.

• Established

  “approach to construction and repairs. Since 2007, we have dedicated ourselves to…”

• Years in business

  “in 2007, Sun Diagnostics leverages over 25 years of combined trade experience. Rooted…”

• Insured

  “model means you work with a licensed, insured, and manufacturer-certified…”

• Licensed

  “service model means you work with a licensed, insured, and manufacturer-certified…”

Its website also mentions warranty, but not in a sentence we can quote cleanly.

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

• CompanyRating breakdown1–2★Newest review held

• Critical Mass Solar

  4.9★ · 59 reviews

  3%
  Newest held review 6 months old

• New England Clean Energy

  5.0★ · 17 reviews · Hudson, 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.
• —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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