CSLB-Verified · California
Licensed Landscaping Contractors in DIAMOND BAR, CA
10 verified contractors · 3 carry active workers' comp · Average 21 years in business · Updated June 2026
Finding a reliable landscaping contractor in DIAMOND BAR means looking beyond reviews. Of the 10 CSLB-licensed contractors operating in DIAMOND BAR, 3 carry active workers' compensation insurance — meaning they can legally employ a crew on your property. 4 hold a Corporation or LLC structure, typically carrying stronger liability coverage than sole proprietors.
Climate & Hardiness in DIAMOND BAR
DIAMOND BAR sits in USDA Plant Hardiness Zone 10a, with minimum temperatures of 30–35°F. Zone 10a sits at the edge of frost risk — rare but possible, meaning irrigation systems need winterization readiness even if they rarely need it. The mild climate supports an enormous range of plant material, but summer fog patterns, coastal wind exposure, and microclimate variation within a single neighborhood can dramatically change what thrives. Local experience matters here more than in more uniform climates.
10 Licensed Landscapers in DIAMOND BAR
PERSPECTIVE LANDSCAPING INC
Workers' Comp ActiveLicensed 1988 · 37 years in business
Corporation · Los Angeles County
License #541581 · Status: CLEAR ✓
(909) 598 5658
HARDY LANDSCAPE CONSTRUCTION INC
Workers' Comp ActiveLicensed 2007 · 18 years in business
Corporation · Los Angeles County
License #905954 · Status: CLEAR ✓
(909) 632 6052
MARTIN DOLORES K
WC Exempt (Sole Owner)Licensed 1982 · 43 years in business
Sole Owner · Los Angeles County
License #430320 · Status: CLEAR ✓
(909) 482 1279
LIM JAE H
WC Exempt (Sole Owner)Licensed 1996 · 30 years in business
Sole Owner · Los Angeles County
License #721424 · Status: CLEAR ✓
(909) 322 2906
HARDY LANDSCAPE
WC Exempt (Sole Owner)Licensed 1997 · 29 years in business
Sole Owner · Los Angeles County
License #734646 · Status: CLEAR ✓
(909) 569 3757
FOREST & SUN ARBORIST DESIGNERS LANDSCAPERS
WC Exempt (Sole Owner)Licensed 2007 · 19 years in business
Sole Owner · Los Angeles County
License #893193 · Status: CLEAR ✓
(909) 455 6800
GREEN POINT
WC Exempt (Sole Owner)Licensed 2007 · 18 years in business
Sole Owner · Los Angeles County
License #907419 · Status: CLEAR ✓
(909) 938 8430
COLONY ON GREEN
WC Exempt (Sole Owner)Licensed 2010 · 15 years in business
Corporation · Los Angeles County
License #951899 · Status: CLEAR ✓
(951) 698 8111
FILL GOOD LANDSCAPING
Workers' Comp ActiveLicensed 2019 · 7 years in business
Limited Liability · Los Angeles County
License #1053396 · Status: CLEAR ✓
(909) 215 0260
SIERRA PEAKS LANDSCAPING
WC Exempt (Sole Owner)Licensed 2024 · 1 years in business
Sole Owner · Los Angeles County
License #1128080 · Status: CLEAR ✓
(213) 865 0562
Beyond Landscaping: Specialty Licenses in DIAMOND BAR
Some DIAMOND BAR landscapers also hold additional CSLB classifications — useful when a project spans trades like drainage, concrete, or pools.
- 1 also hold General Building (B)
DIAMOND BAR Landscaping Market at a Glance
- 10 contractors hold a current, clear CSLB C-27 landscaping license
- 3 (30%) carry active workers' compensation insurance
- 4 (40%) are incorporated (Corporation or LLC)
- 8 have been licensed for 10 or more years
- Average time in business: 21.7 years
- Longest-established contractor: 43 years (licensed 1982)
Nearby Cities
Frequently Asked Questions
How do I verify a landscaping contractor's license in California?
Every contractor on this page links to its official CSLB license-detail record. Search the license number at cslb.ca.gov to confirm the license is current, the classification is C-27 (Landscaping), and the status is CLEAR before you hire.
What is the difference between a C-27 licensed contractor and an unlicensed landscaper?
A C-27 license means the contractor passed California's trade and law exams, posted a contractor bond, and is accountable to the CSLB. Unlicensed operators carry none of those protections — you have little recourse if work is defective or someone is injured on your property.
Why does workers' compensation insurance matter when hiring a landscaper?
If a contractor employs a crew, active workers' comp insurance means you are not liable for on-site injuries. A contractor without it can legally work alone, but you take on real risk the moment an uninsured crew sets foot on your property.
How does coastal fog affect landscaping choices in DIAMOND BAR?
DIAMOND BAR's summer fog and microclimate variation change what thrives block to block. Contractors with local experience choose plant material and irrigation schedules matched to your specific exposure rather than a generic plan.
