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Best Licensed Landscaping Contractors in Knightsen, CA

3 landscaping companies registered in Knightsen hold current CSLB licenses, verified against official records as of August 20, 2026. All 3 are listed below, ordered by workers' compensation cover and years licensed.

How we chose: We identified 3 companies registered in Knightsen. 3 passed license verification. All 3 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. 1.Aj's Landscaping

    ✓ CSLB License #966319 - look up this number at CSLB
    Verified
    August 20, 2026
    Licensed since
    2011
    Phone
    (925) 382-2139

  2. 2.Artistic Landscape

    ✓ CSLB License #1052964 - look up this number at CSLB
    Verified
    August 20, 2026
    Licensed since
    2019
    Phone
    (925) 436-0928

  3. 3.Modern Oak Landscaping

    ✓ CSLB License #1104392 - look up this number at CSLB
    Verified
    August 20, 2026
    Licensed since
    2023
    Phone
    (925) 431-9276

Compare the top 3 at a glance

CompanyLicenseWorkers' compLicensed since
Aj's Landscaping#966319On file2011
Artistic Landscape#1052964On file2019
Modern Oak Landscaping#1104392Exempt or none on file2023

Contra Costa County landscaping licensure at a glance

California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 460 active C-27 landscaping licenses in Contra Costa County, 3 of them registered in Knightsen. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Knightsen license has been held 7 years, and the longest-standing one dates to 2011. 2 of Knightsen'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: 460 of the county's 460 licenses carry the same $25,000 bond California sets by statute. 38 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 Knightsen: common questions

How many licensed landscaping contractors are there in Knightsen?

3 active C-27 landscaping licenses are registered in Knightsen, out of 460 across Contra Costa County. 3 Knightsen-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 landscaping contractors?

Yes. California licenses contractors by classification, and C-27 is the CSLB classification that authorises this work. 3 active C-27 landscaping licenses are registered in Knightsen and 460 across Contra Costa County, the longest-standing issued in 2011. 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 2 of Knightsen's 3 currently carry. 38 Contra Costa County licenses expire within 90 days.

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