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Best Licensed Tree Service Contractors in Redwood City, CA

15 tree service companies registered in Redwood City hold current CSLB licenses, verified against official records as of August 17, 2026. The 8 below are the top-ranked, ordered by years licensed.

How we chose: We identified 15 companies registered in Redwood City. 15 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.Dolezal Tree Surgery Inc.

    ✓ CSLB License #663569 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    1993
    Phone
    (650) 366-5986

  2. 2.Golden Bay Arborists

    ✓ CSLB License #838387 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2004
    Phone
    (650) 575-6680

  3. 3.Sal's Landscaping

    ✓ CSLB License #868875 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2005
    Phone
    (650) 333-4373

  4. 4.E C Tree Service Inc.

    ✓ CSLB License #903257 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2007
    Phone
    (650) 368-2044

  5. 5.Castillo Landscaping

    ✓ CSLB License #937071 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2009
    Phone
    (650) 346-7158

  6. 6.Ulloa Construction

    ✓ CSLB License #948309 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2010
    Phone
    (650) 740-0656

  7. 7.Hector's Tree Service

    ✓ CSLB License #975391 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2012
    Phone
    (650) 520-3582

  8. 8.Brothers Services Tree Care Inc.

    ✓ CSLB License #980205 - look up this number at CSLB
    Verified
    August 17, 2026
    Licensed since
    2013
    Phone
    (650) 996-0360

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
Dolezal Tree Surgery Inc.#663569On file1993
Golden Bay Arborists#838387On file2004
Sal's Landscaping#868875On file2005
E C Tree Service Inc.#903257On file2007
Castillo Landscaping#937071On file2009
Ulloa Construction#948309On file2010

San Mateo County tree licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 53 active C-49 and D-49 tree licenses in San Mateo County, 15 of them registered in Redwood City. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Redwood City license has been held 13 years, and the longest-standing one dates to 1993. 15 of Redwood City's 15 licenses (100.0%) 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: 53 of the county's 53 licenses carry the same $25,000 bond California sets by statute. 7 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.

Tree Service Contractors in Redwood City: common questions

How many licensed tree contractors are there in Redwood City?

15 active C-49 and D-49 tree licenses are registered in Redwood City, out of 53 across San Mateo County. 15 Redwood City-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 tree service contractors?

Yes. California licenses contractors by classification, and C-49 or D-49 is the CSLB classification that authorises this work. 15 active C-49 and D-49 tree licenses are registered in Redwood City and 53 across San Mateo County, the longest-standing issued in 1993. Only CLEAR, unexpired licenses appear here.

How do I check a tree 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 Redwood City's 15 currently carry. 7 San Mateo County licenses expire within 90 days.

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