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Best Licensed Solar Contractors in San Diego, CA

30 solar companies registered in San Diego hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by workers' compensation cover and years licensed.

How we chose: We identified 30 companies registered in San Diego. 30 passed license verification. The 8 below are the top-ranked of those. Our methodology

We earn a fee when you call businesses through numbers on this site. This never affects who is listed or how they rank.

  1. 1.Moore Home Services

    ✓ CSLB License #513115 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1987
    Phone
    (707) 243-2250

  2. 2.Alltech Solar Inc.

    ✓ CSLB License #713479 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1995
    Phone
    (949) 439-0069

  3. 3.Timeless Development

    ✓ CSLB License #781374 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2000
    Phone
    (858) 536-1048

  4. 4.Berkley Construction Inc.

    ✓ CSLB License #833169 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2004
    Phone
    (619) 255-5975

  5. 5.Pycem Inc.

    ✓ CSLB License #939078 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2009
    Phone
    (619) 271-0110

  6. 6.Ahrens Mechanical

    ✓ CSLB License #957287 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2011
    Phone
    (619) 487-9036

  7. 7.Unique Solar

    ✓ CSLB License #978493 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2012
    Phone
    (858) 353-7478

  8. 8.California Solar Integrators Inc.

    ✓ CSLB License #1004246 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2015
    Phone
    (800) 784-7612

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
Moore Home Services#513115On file1987
Alltech Solar Inc.#713479On file1995
Timeless Development#781374On file2000
Berkley Construction Inc.#833169On file2004
Pycem Inc.#939078On file2009
Ahrens Mechanical#957287On file2011

San Diego County solar licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 130 active C-46 solar licenses in San Diego County, 30 of them registered in San Diego. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median San Diego license has been held 10 years, and the longest-standing one dates to 1987. 15 of San Diego's 30 licenses (50.0%) carry current workers' compensation cover in CSLB's file. That is employee injury cover, not liability insurance, and a blank usually means an owner-operator with no employees - lawful, and not a mark against anyone. The contractor bond is not a signal here: 130 of the county's 130 licenses carry the same $25,000 bond California sets by statute. 14 county licenses reach their expiration date within the next 90 days. CSLB cannot link straight to a license record, so every listing above shows its number for you to type into CSLB's license lookup. How we verify.

Solar Contractors in San Diego: common questions

How many licensed solar contractors are there in San Diego?

30 active C-46 solar licenses are registered in San Diego, out of 130 across San Diego County. 30 San Diego-registered companies passed our license verification, and the 8 on this page are the top-ranked of those. Only licenses CSLB shows as CLEAR and unexpired are listed.

Does California license solar contractors?

Yes. California licenses contractors by classification, and C-46 is the CSLB classification that authorises this work. 30 active C-46 solar licenses are registered in San Diego and 130 across San Diego County, the longest-standing issued in 1987. Only CLEAR, unexpired licenses appear here.

How do I check a solar contractor's license in California?

Every listing above shows its CSLB license number. CSLB cannot link straight to a record, so open its license lookup and type the number in: it shows status, expiration, the contractor bond and workers' compensation cover, which 15 of San Diego's 30 currently carry. 14 San Diego County licenses expire within 90 days.

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