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Critical Mass Solar

4.9

About this business

Location details

33 Leighton St, Pepperell, MA, 01463, United States

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WeekdayScheduleStatus
Mon7:00 a.m. to 7:00 p.m.
Tue7:00 a.m. to 7:00 p.m.
Wed7:00 a.m. to 7:00 p.m.
Thu7:00 a.m. to 7:00 p.m.
Fri7:00 a.m. to 7:00 p.m.
SatClosed
SunClosed
4.965 reviews
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Andrew Woodbury's profile image
Andrew Woodbury 
a month ago

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 com... read more

Tyler Carroll's profile image
Tyler Carroll 
5 months ago

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!! 

Aki Kastanas's profile image
Aki Kastanas 
9 months ago

I would strongly recommend Freddy and Critical Mass Solar to anyone who's remotely interested in a solar installation. The crew was excellent, the process was incredibly smooth and efficient, and Freddy was a wonderful presence in our corner throughout the journey. Our questions were answered in timely fashion, and Freddy's guidance and detailed proposals were so helpful in our decision-making process. The timeline was insanely fast, too -- we signed the paperwork on March 31, and we were already generating power from the co... read more

Evan Tingle's profile image
Evan Tingle 
9 months ago

Our experience with Critical Mass was so easy it makes you wish every home project could be like this. Not only were they less expensive than other companies, but they tackled a tricky roof the other guys didn't want to deal with and maximized our coverage. Freddy is one of the most responsive contractors we've ever met and will keep you updated every step of the way. We couldn't be happier with our Critical Mass. 

Vicki Morehouse's profile image
Vicki Morehouse 
9 months ago

Freddy is great to work with and very knowledgable. 

Frequently asked questions about Critical Mass Solar

How is Critical Mass Solar rated?

Critical Mass Solar has a 4.9 star rating with 65 reviews. 

When is Critical Mass Solar open?

Critical Mass Solar is open now. It will close at 7:00 p.m. 

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