Contractors / Cambridge, MA / Solar

Solar installers in Cambridge, MA

Ranked by permit volume, not quality or customer satisfaction.

172 solar permits were filed in Cambridge in the last 12 months. These 22 contractors filed them most often. Tap a name for their full permit history.

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  1. 1Boston Solar Company2 in last 90 days22
  2. 2Gerald D Hebertnone in last 90 days18
  3. 3Great Sky Solar2 in last 90 days11
  4. 3Matthew Knight2 in last 90 days11
  5. 5Revision Energy3 in last 90 days10
  6. 6Samuel John Pillsbury3 in last 90 days9
  7. 7Nathan A Ashenone in last 90 days7
  8. 8Sunrun Installation Servicesnone in last 90 days5
  9. 9Trinity Solar, LLC2 in last 90 days4
  10. 9All Energy Solarnone in last 90 days4
  11. 9Anthony . Alfanonone in last 90 days4
  12. 12Stephen Connolly1 in last 90 days3
  13. 12Clean Earth Energy LLCnone in last 90 days3
  14. 12Nicholas Pellegrinonone in last 90 days3
  15. 12Peter Andersonnone in last 90 days3
  16. 12Team Sunshine Construction LLCnone in last 90 days3
  17. 17Lunex Power Inc.1 in last 90 days2
  18. 17Sunrunnone in last 90 days2
  19. 17Tesla Energynone in last 90 days2
  20. 17Viridis Energy Solutionsnone in last 90 days2
  21. 21Frs Roofing Inc1 in last 90 days1
  22. 21RB Farina Roofing & Construction Inc.none in last 90 days1

Recent solar permits in Cambridge

  1. Oct 21, 2026Solar installation (solar): Rooftop solar installation consisting of (9) Solar panels and (9) Microinverters, 4.14 kW DCGreat Sky Solar · Electrical · Active · #1491481
  2. Oct 21, 2026Electrical: Rooftop solar installation consisting of (9) Solar panels and (9) Microinverters, 4.14 kW DC.Matthew Knight · Electrical · Active · #1491486
  3. Oct 19, 2026Electrical: Installation of 33 solar panels on roof of residence. 15.015 kW DC roof mount. No ess/battery. No structuralLunex Power Inc. · Electrical · Active · #1491045
  4. Oct 13, 2026Electrical: Install 5.74kW roof-mounted solar panels; will not exceed roof panel, but will add 6" to roof height - 14 paTrinity Solar, LLC · Electrical · Active · #1490100
  5. Oct 13, 2026Solar installation (solar): Install 5.74kW roof-mounted solar panels; will not exceed roof panel, but will add 6" to rooTrinity Solar, LLC · Electrical · Active · #1490092
  6. Oct 10, 2026Electrical: Associated electrical work for an installation of  ballasted PV solar systems (6.89 kW DC / 4.94 kW AC) withSamuel John Pillsbury · Electrical · Active · #1489749
  7. Oct 7, 2026Electrical: Installation of a 34.22kW DC / 20kW AC rooftop solar panel system w/EPO at grade level (58 modules).Boston Solar Company · Electrical · Active · #1489181
  8. Oct 7, 2026Electrical: Installation of a 33.32kW DC / 20kW AC rooftop solar panel system with EPO at grade level (56 modules).Boston Solar Company · Electrical · Active · #1489186
  9. Sep 29, 2026Solar installation (solar): The installation of a ballasted PV solar project (6.89 kW DC / 4.94 kW AC) with 13 modules oRevision Energy · Electrical · Active · #1487548
  10. Sep 8, 2026Electrical: The installation of a roof mounted PV solar project consist of 27 Silfab 440W modules, totals 11.88KWDC, 10.Samuel John Pillsbury · Electrical · Active · #1483646

How solar compares in Cambridge

Other trades in Cambridge

Electricians 2419Plumbers 1258Building contractors 1089HVAC contractors 1025Gas fitters 790Roofing contractors 440Siding contractors 20

Solar installers nearby

Boston 1442Randolph 496Attleboro 438Falmouth 386Bellingham 263Plymouth 204Bridgewater 181Barnstable 180

Get quotes from active solar contractors in Cambridge

Request a quote and we route it to contractors with documented permits here. No ratings invented — you see their permit history first.

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Source: Cambridge open data. Data updated Nov 6, 2026. A permit shows a job was filed with the town. It doesn’t show whether the work was finished or how it turned out. Rankings are by permit volume, not quality.