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Best Licensed Solar Contractors in Windsor, CA

3 solar companies registered in Windsor hold current CSLB licenses, verified against official records as of August 17, 2026. All 3 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 3 companies registered in Windsor. 3 passed license verification. All 3 are listed below. Our methodology

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  1. 1.North Coast Waterworks Inc.

    ✓ CSLB License #498434 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1986
    Phone
    (707) 578-3411

  2. 2.Henry Mechanical

    ✓ CSLB License #855174 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2005
    Phone
    (707) 838-3311

  3. 3.B E S - Brandalick Energy Service

    ✓ CSLB License #494680 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1986
    Phone
    (707) 322-4943

Compare the top 3 at a glance

CompanyLicenseWorkers' compLicensed since
North Coast Waterworks Inc.#498434On file1986
Henry Mechanical#855174On file2005
B E S - Brandalick Energy Service#494680Exempt or none on file1986

Sonoma County solar licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 31 active C-46 solar licenses in Sonoma County, 3 of them registered in Windsor. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Windsor license has been held 39 years, and the longest-standing one dates to 1986. 2 of Windsor's 3 licenses (66.7%) 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: 31 of the county's 31 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 Windsor: common questions

How many licensed solar contractors are there in Windsor?

3 active C-46 solar licenses are registered in Windsor, out of 31 across Sonoma County. 3 Windsor-registered companies passed our license verification, and all 3 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. 3 active C-46 solar licenses are registered in Windsor and 31 across Sonoma County, the longest-standing issued in 1986. 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 2 of Windsor's 3 currently carry. 2 Sonoma County licenses expire within 90 days.

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