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Best Licensed Solar Contractors in Oakland, CA

4 solar companies registered in Oakland hold current CSLB licenses, verified against official records as of August 17, 2026. All 4 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 4 companies registered in Oakland. 4 passed license verification. All 4 are listed below. 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.Fidelity Roof Company

    ✓ CSLB License #156017 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1955
    Phone
    (510) 547-6330

  2. 2.Interstate Roofing And Solar

    ✓ CSLB License #522166 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1987
    Phone
    (510) 639-0833

  3. 3.Grid Alternatives

    ✓ CSLB License #867533 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2005
    Phone
    (510) 731-1310

  4. 4.David The Solar Pro

    ✓ CSLB License #1143968 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2025
    Phone
    (510) 930-4942

Compare the top 4 at a glance

CompanyLicenseWorkers' compLicensed since
Fidelity Roof Company#156017On file1955
Interstate Roofing And Solar#522166On file1987
Grid Alternatives#867533On file2005
David The Solar Pro#1143968Exempt or none on file2025

Alameda County solar licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 40 active C-46 solar licenses in Alameda County, 4 of them registered in Oakland. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Oakland license has been held 20 years, and the longest-standing one dates to 1955. 3 of Oakland's 4 licenses (75.0%) 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: 40 of the county's 40 licenses carry the same $25,000 bond California sets by statute. 2 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 Oakland: common questions

How many licensed solar contractors are there in Oakland?

4 active C-46 solar licenses are registered in Oakland, out of 40 across Alameda County. 4 Oakland-registered companies passed our license verification, and all 4 are listed on this page. 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. 4 active C-46 solar licenses are registered in Oakland and 40 across Alameda County, the longest-standing issued in 1955. 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 3 of Oakland's 4 currently carry. 2 Alameda County licenses expire within 90 days.

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