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Best Licensed General Contractors in Petaluma, CA

348 general contractors registered in Petaluma hold current CSLB licenses, verified against official records as of August 22, 2026. The 8 below are the top-ranked, ordered by workers' compensation cover and years licensed.

How we chose: We identified 348 companies registered in Petaluma. 348 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.Midstate Construction Corporation

    ✓ CSLB License #89455 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1946
    Phone
    (707) 762-3200

  2. 2.Kozy Homes

    ✓ CSLB License #262090 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1970
    Phone
    (707) 778-3500

  3. 3.Curran Environmental Services Inc.

    ✓ CSLB License #269122 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1971
    Phone
    (707) 529-6693

  4. 4.Bryan Masterson Enterprises

    ✓ CSLB License #271933 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1971
    Phone
    (707) 971-7686

  5. 5.North Bay Sunspace Inc.

    ✓ CSLB License #337713 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1977
    Phone
    (707) 769-8553

  6. 6.Goebel Construction Inc.

    ✓ CSLB License #348449 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1977
    Phone
    (707) 763-0088

  7. 7.Anthony Bertotti Landscaping Inc.

    ✓ CSLB License #373488 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1979
    Phone
    (707) 559-7077

  8. 8.Cooney Construction Inc.

    ✓ CSLB License #379542 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1979
    Phone
    (707) 658-1046

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
Midstate Construction Corporation#89455On file1946
Kozy Homes#262090On file1970
Curran Environmental Services Inc.#269122On file1971
Bryan Masterson Enterprises#271933On file1971
North Bay Sunspace Inc.#337713On file1977
Goebel Construction Inc.#348449On file1977

Sonoma County general building licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 2,077 active B general building contractor licenses in Sonoma County, 356 of them registered in Petaluma. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Petaluma license has been held 19 years, and the longest-standing one dates to 1946. 157 of Petaluma's 356 licenses (44.1%) 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: 2,075 of the county's 2,077 licenses carry the same $25,000 bond California sets by statute. 175 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.

General Contractors in Petaluma: common questions

How many licensed general contractors are there in Petaluma?

356 active B general building contractor licenses are registered in Petaluma, out of 2,077 across Sonoma County. 348 Petaluma-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 general contractors?

Yes. California licenses contractors by classification, and B is the CSLB classification that authorises this work. 356 active B general building contractor licenses are registered in Petaluma and 2,077 across Sonoma County, the longest-standing issued in 1946. Only CLEAR, unexpired licenses appear here.

How do I check a general 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 157 of Petaluma's 356 currently carry. 175 Sonoma County licenses expire within 90 days.

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