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DeFreitas Enterprises, LLC

DeFreitas Enterprises, LLC is a family owned and operated solar installation company based in Chelmsford, MA. We are a 100% in house installation team that has installed on hundreds of homes in New England. We are in control of our process, and only use the best materials on the market. Our team is made of licensed engineers, insured installers & master electricians- ready to take on your next New England solar project. Offering lifetime support, we are your best choice for price, quality, and efficiency in New England.
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About DeFreitas Enterprises, LLC

DeFreitas Enterprises, LLC is a family owned and operated solar installation company based in Chelmsford, MA. We have been installing for companies and customers since 2014 & have a 5 star rating for customer satisfaction. We communicate with previous customers and work incredibly well with the New England Market.
Year Established
Phone Number
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Services Offered

  • Installation
  • Financing
  • Construction
  • Roofing
  • Electrical Contracting
  • General Contracting
  • Solar Repair & Maintenance

Workmanship Warranty

3 Years


MA Construction Supervisor: 109127
MA Home Improvement Contractor: 183712


$2,000,000 General Liability
Workers Compensation

Industry Certifications

Manufacturer Certifications

  • Certified
  • PWRpartner

What Customers Are Saying

7 reviews
Average Rating 7 review(s)
Leave a Review
Amazing Service & Installation- Talented Crew

This team is welcome back at any time. All high end equiptment and full monitoring access. I no longer pay eversource a bill

Posted by mcsailing18 on Sep 25, 2022
Very responsive and thorough

I really enjoyed working with Alex DeFreitas. He was very knowledgeable, forthright, and seemed sincere. The system he proposed was enough to eliminate my electric bill and then some and was designed with top of the line panels. I only decided to go with another provider as I found an outfit that was local and designed a system that almost doubled my needs as I plan to add high power needs equipment to my farm.

Posted by pamiejune14 on Apr 28, 2020
Reliable Solar Panels Installer

Alex-sun was the solar contractor we chose for our Solar Panel installation project. Both my wife and I have been extremely pleased with the quality of service we have received from Alex and his team. The work was performed on schedule and with a high degree of precision. All issues that entail such an endeavor were managed in a timely and professional manner. We have no hesitation in recommending that anyone considering either a residential or commercial solar energy project to definitely consider Alex-sun as their prospective contractor. Frank and Farida Ahmed

Posted by frankiahmed on Apr 03, 2017
Choose Alex-Sun for your Solar!

Alex was phenomenal, accommodating and very flexible. He was very knowledgeable about regulations, rebates and loan programs and helped every step of the way with those. We wanted to go beyond just the PV Solar panels that Alex-Sun provided and installed, and include Solar Hot Water. Alex wanted to expand his repertoire and he encouraged and helped us with that installation as well. I was particularly impressed with that. Through all this, Alex's commitment to the environment came shining through!

Posted by sjlentz1 on Jan 25, 2017
Solar Panels

We are thrilled with our solar panels and how quickly they were installed.

Posted by ekarban on Dec 21, 2016
Great Experience!

Alex was great to work with, from start to finish! While he is a relatively new installer, he wasn't overly pushy in his sales pitch. He was always open and honest throughout the inspection, design, install, financing, and post work phases. His turnaround time - a little over a month from start to finish - was a difference maker in my decision to go with his company over other proposals and he stuck to that timeline. The install and inspection did not hinder my normal routine much at all, either. I've had several questions after install and Alex still remains in contact. I highly recommend Alex for your solar needs!

Posted by arthur.rivera on Dec 07, 2016



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