Best Licensed Landscaping Contractors in Castro Valley, CA
20 landscaping companies registered in Castro Valley hold current CSLB licenses, verified against official records as of August 20, 2026. The 8 below are the top-ranked, ordered by workers' compensation cover and years licensed.
- 369 active C-27 landscaping licenses in Alameda County; 21 registered in Castro Valley
- 10 of Castro Valley's 21 licenses (47.6%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Castro Valley: 16 years
- Longest Castro Valley licensure: since 1980
- 30 county licenses reach their expiration date within 90 days
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- Verified
- August 20, 2026
- Licensed since
- 1980
- Phone
- (510) 276-2384
- Verified
- August 20, 2026
- Licensed since
- 1983
- Phone
- (510) 537-0464
- Verified
- August 20, 2026
- Licensed since
- 1991
- Phone
- (510) 517-6264
- Verified
- August 20, 2026
- Licensed since
- 1998
- Phone
- (510) 581-8492
- Verified
- August 20, 2026
- Licensed since
- 2003
- Phone
- (510) 861-0944
- Verified
- August 20, 2026
- Licensed since
- 2003
- Phone
- (510) 813-4247
- Verified
- August 20, 2026
- Licensed since
- 2007
- Phone
- (510) 512-6055
- Verified
- August 20, 2026
- Licensed since
- 2019
- Phone
- (510) 295-7604
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Plants Unlimited Inc. | #393699 | On file | 1980 |
| Hansen Landscape Contractors Inc. | #440372 | On file | 1983 |
| D A D's Garden Service | #610967 | On file | 1991 |
| Richard Ditiberio & Co | #757212 | On file | 1998 |
| Jefferson Landscape And Design | #824650 | On file | 2003 |
| Akira Landscaping | #828978 | On file | 2003 |
Alameda County landscaping licensure at a glance
California licenses contractors by classification and CSLB publishes one on every record, so supply can be counted exactly: 369 active C-27 landscaping licenses in Alameda County, 21 of them registered in Castro Valley. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Castro Valley license has been held 16 years, and the longest-standing one dates to 1980. 10 of Castro Valley's 21 licenses (47.6%) 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: 367 of the county's 369 licenses carry the same $25,000 bond California sets by statute. 30 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 Castro Valley: common questions
How many licensed landscaping contractors are there in Castro Valley?
21 active C-27 landscaping licenses are registered in Castro Valley, out of 369 across Alameda County. 20 Castro Valley-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 landscaping contractors?
Yes. California licenses contractors by classification, and C-27 is the CSLB classification that authorises this work. 21 active C-27 landscaping licenses are registered in Castro Valley and 369 across Alameda County, the longest-standing issued in 1980. 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 10 of Castro Valley's 21 currently carry. 30 Alameda County licenses expire within 90 days.
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