Best Licensed Landscaping Contractors in Altadena, CA
9 landscaping companies registered in Altadena 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.
- 1,481 active C-27 landscaping licenses in Los Angeles County; 9 registered in Altadena
- 5 of Altadena's 9 licenses (55.6%) carry current workers' compensation cover, not liability insurance; a blank usually means an owner-operator with no employees
- Median time licensed in Altadena: 13 years
- Longest Altadena licensure: since 1992
- 130 county licenses reach their expiration date within 90 days
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- Verified
- August 20, 2026
- Licensed since
- 1997
- Phone
- (626) 644-3733
- Verified
- August 20, 2026
- Licensed since
- 2014
- Phone
- (626) 217-8035
- Verified
- August 20, 2026
- Licensed since
- 2024
- Phone
- (424) 257-2060
- Verified
- August 20, 2026
- Licensed since
- 2025
- Phone
- (626) 893-0522
- Verified
- August 20, 2026
- Licensed since
- 2025
- Phone
- (626) 818-0757
- Verified
- August 20, 2026
- Licensed since
- 1992
- Phone
- (626) 482-4941
- Verified
- August 20, 2026
- Licensed since
- 2004
- Phone
- (626) 376-7779
- Verified
- August 20, 2026
- Licensed since
- 2007
- Phone
- (818) 790-8607
Compare the top 6 at a glance
| Company | License | Workers' comp | Licensed since |
|---|---|---|---|
| Bottoms Up - Gardens & Tree Care | #743800 | On file | 1997 |
| Lopez Tree & Landscape Inc. | #997458 | On file | 2014 |
| Noah's Ark Landscaping Inc. | #1115757 | On file | 2024 |
| Socal Landscape And Trees | #1138267 | On file | 2025 |
| Linares Landscaping LLC | #1143601 | On file | 2025 |
| Scott Landscape Group | #641419 | Exempt or none on file | 1992 |
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, 9 of them registered in Altadena. CSLB also publishes a real original issue date, which Washington's registry does not, so tenure is measurable here: the median Altadena license has been held 13 years, and the longest-standing one dates to 1992. 5 of Altadena's 9 licenses (55.6%) 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: 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 Altadena: common questions
How many licensed landscaping contractors are there in Altadena?
9 active C-27 landscaping licenses are registered in Altadena, out of 1,481 across Los Angeles County. 9 Altadena-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. 9 active C-27 landscaping licenses are registered in Altadena and 1,481 across Los Angeles County, the longest-standing issued in 1992. 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 5 of Altadena's 9 currently carry. 130 Los Angeles County licenses expire within 90 days.
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