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Best Licensed General Contractors in San Luis Obispo, CA

212 general contractors registered in San Luis Obispo 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 212 companies registered in San Luis Obispo. 212 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.Quaglino Roofing

    ✓ CSLB License #254025 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1968
    Phone
    (805) 543-0560

  2. 2.R Burke Corporation

    ✓ CSLB License #264193 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1970
    Phone
    (805) 543-8568

  3. 3.D R O'daniel Construction

    ✓ CSLB License #349887 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1978
    Phone
    (805) 541-7117

  4. 4.John Madonna Construction Company Inc.

    ✓ CSLB License #358030 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1978
    Phone
    (805) 543-7751

  5. 5.Hanna Construction Engineering Inc.

    ✓ CSLB License #367611 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1978
    Phone
    (818) 331-8678

  6. 6.Knecht's Plumbing & Heating Inc.

    ✓ CSLB License #373936 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1979
    Phone
    (805) 544-5118

  7. 7.Bunnell Construction Inc.

    ✓ CSLB License #376970 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1979
    Phone
    (805) 544-4300

  8. 8.Rarig Construction Inc.

    ✓ CSLB License #389696 - look up this number at CSLB
    Verified
    August 22, 2026
    Licensed since
    1980
    Phone
    (805) 543-9397

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
Quaglino Roofing#254025On file1968
R Burke Corporation#264193On file1970
D R O'daniel Construction#349887On file1978
John Madonna Construction Company Inc.#358030On file1978
Hanna Construction Engineering Inc.#367611On file1978
Knecht's Plumbing & Heating Inc.#373936On file1979

San Luis Obispo 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: 1,381 active B general building contractor licenses in San Luis Obispo County, 215 of them registered in San Luis Obispo. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median San Luis Obispo license has been held 19 years, and the longest-standing one dates to 1968. 88 of San Luis Obispo's 215 licenses (40.9%) 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: 1,381 of the county's 1,381 licenses carry the same $25,000 bond California sets by statute. 122 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 San Luis Obispo: common questions

How many licensed general contractors are there in San Luis Obispo?

215 active B general building contractor licenses are registered in San Luis Obispo, out of 1,381 across San Luis Obispo County. 212 San Luis Obispo-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. 215 active B general building contractor licenses are registered in San Luis Obispo and 1,381 across San Luis Obispo County, the longest-standing issued in 1968. 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 88 of San Luis Obispo's 215 currently carry. 122 San Luis Obispo County licenses expire within 90 days.

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