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Best Licensed Landscaping Contractors in Diamond Bar, CA

7 landscaping companies registered in Diamond Bar hold current CSLB licenses, verified against official records as of August 20, 2026. All 7 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 7 companies registered in Diamond Bar. 7 passed license verification. All 7 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. Verified
    August 20, 2026
    Licensed since
    1988
    Phone
    (909) 598-5658
  2. Verified
    August 20, 2026
    Licensed since
    1997
    Phone
    (909) 569-3757
  3. Verified
    August 20, 2026
    Licensed since
    2019
    Phone
    (909) 215-0260
  4. Verified
    August 20, 2026
    Licensed since
    2007
    Phone
    (909) 455-6800
  5. Verified
    August 20, 2026
    Licensed since
    2007
    Phone
    (909) 632-6052
  6. Verified
    August 20, 2026
    Licensed since
    2007
    Phone
    (909) 938-8430
  7. Verified
    August 20, 2026
    Licensed since
    2010
    Phone
    (951) 698-8111

Compare the top 6 at a glance

CompanyLicenseWorkers' compLicensed since
Perspective Landscaping Inc.#541581On file1988
Hardy Landscape#734646On file1997
Fill Good Landscaping#1053396On file2019
Forest & Sun Arborist Designers Landscapers#893193Exempt or none on file2007
Hardy Landscape Construction Inc.#905954Expired on file2007
Green Point#907419Exempt or none on file2007

Los Angeles County landscaping licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 1,481 active C-27 landscaping licenses in Los Angeles County, 7 of them registered in Diamond Bar. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Diamond Bar license has been held 18 years, and the longest-standing one dates to 1988. 3 of Diamond Bar's 7 licenses (42.9%) 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: 1,479 of the county's 1,481 licenses carry the same $25,000 bond California sets by statute. 130 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.

Landscaping Contractors in Diamond Bar: common questions

How many licensed landscaping contractors are there in Diamond Bar?

7 active C-27 landscaping licenses are registered in Diamond Bar, out of 1,481 across Los Angeles County. 7 Diamond Bar-registered companies passed our license verification, and all 7 are listed on this page. Only licenses CSLB shows as CLEAR and unexpired are listed.

Does California license landscaping contractors?

Yes. California licenses contractors by classification, and C-27 is the CSLB classification that authorises this work. 7 active C-27 landscaping licenses are registered in Diamond Bar and 1,481 across Los Angeles County, the longest-standing issued in 1988. Only CLEAR, unexpired licenses appear here.

How do I check a landscaping 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 Diamond Bar's 7 currently carry. 130 Los Angeles County licenses expire within 90 days.

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