CSLB-Verified · California
Licensed Landscaping Contractors in ONTARIO, CA
32 verified contractors · 17 carry active workers' comp · Average 13 years in business · Updated June 2026
Finding a reliable landscaping contractor in ONTARIO means looking beyond reviews. Of the 32 CSLB-licensed contractors operating in ONTARIO, 17 carry active workers' compensation insurance — meaning they can legally employ a crew on your property. 14 hold a Corporation or LLC structure, typically carrying stronger liability coverage than sole proprietors.
Climate & Hardiness in ONTARIO
ONTARIO 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.
32 Licensed Landscapers in ONTARIO
PREMIER POOLS AND SPAS
Workers' Comp ActiveLicensed 1982 · 43 years in business
Corporation · San Bernardino County
License #430551 · Status: CLEAR ✓
(909) 321 1400
M & R CONSTRUCTION SERVICES INC
Workers' Comp ActiveLicensed 1987 · 39 years in business
Corporation · San Bernardino County
License #508404 · Status: CLEAR ✓
(909) 947 6474
COASTLINE OUTDOOR SOLUTIONS
Workers' Comp ActiveLicensed 1989 · 36 years in business
Sole Owner · San Bernardino County
License #581970 · Status: CLEAR ✓
(909) 224 0133
LANDEROS CONSTRUCTION GROUP
Workers' Comp ActiveLicensed 1999 · 26 years in business
Sole Owner · San Bernardino County
License #770655 · Status: CLEAR ✓
(909) 284 0667
MYCO CONSTRUCTION
Workers' Comp ActiveLicensed 2005 · 21 years in business
Corporation · San Bernardino County
License #853581 · Status: CLEAR ✓
(909) 456 9719
GARCIA MARTIN ROBLES
Workers' Comp ActiveLicensed 2006 · 20 years in business
Sole Owner · San Bernardino County
License #872581 · Status: CLEAR ✓
(909) 772 5908
CALIFORNIA TURF MANAGEMENT INC
Workers' Comp ActiveLicensed 2011 · 15 years in business
Corporation · San Bernardino County
License #958651 · Status: CLEAR ✓
(909) 949 9373
ONTARIOS LANDSCAPE INC
Workers' Comp ActiveLicensed 2012 · 14 years in business
Corporation · San Bernardino County
License #972069 · Status: CLEAR ✓
(909) 996 7782
EYE ON BUILDERS
Workers' Comp ActiveLicensed 2012 · 13 years in business
Sole Owner · San Bernardino County
License #977924 · Status: CLEAR ✓
(323) 997 0193
ROSE GARDEN LANDSCAPING INC
Workers' Comp ActiveLicensed 2015 · 10 years in business
Corporation · San Bernardino County
License #1009854 · Status: CLEAR ✓
(909) 938 1548
SHAMROCK LANDSCAPE & MAINTENANCE
Workers' Comp ActiveLicensed 1986 · 39 years in business
Sole Owner · San Bernardino County
License #496215 · Status: CLEAR ✓
(909) 983 1299
LYTLE LANDSCAPE CONSTRUCTION
WC Exempt (Sole Owner)Licensed 1997 · 28 years in business
Sole Owner · San Bernardino County
License #743494 · Status: CLEAR ✓
(949) 525 7929
SWEET WATER LANDSCAPING
WC Exempt (Sole Owner)Licensed 2003 · 23 years in business
Sole Owner · San Bernardino County
License #817917 · Status: CLEAR ✓
(562) 881 8208
HASSON'S LANDSCAPING
WC Exempt (Sole Owner)Licensed 2007 · 19 years in business
Sole Owner · San Bernardino County
License #891023 · Status: CLEAR ✓
(714) 240 8175
GOEDHART LANDSCAPING
WC Exempt (Sole Owner)Licensed 2009 · 17 years in business
Sole Owner · San Bernardino County
License #934150 · Status: CLEAR ✓
(909) 549 1380
J S C GARDENS & LANDSCAPE
WC Exempt (Sole Owner)Licensed 2012 · 14 years in business
Sole Owner · San Bernardino County
License #973284 · Status: CLEAR ✓
(951) 440 0332
EARTHSCAPES
Workers' Comp ActiveLicensed 2017 · 9 years in business
Corporation · San Bernardino County
License #1027517 · Status: CLEAR ✓
(949) 536 8258
BEAR PAW LANDSCAPE
Workers' Comp ActiveLicensed 2018 · 8 years in business
Sole Owner · San Bernardino County
License #1037030 · Status: CLEAR ✓
(909) 437 3871
FORM & FUNCTION LANDSCAPE
Workers' Comp ActiveLicensed 2019 · 7 years in business
Sole Owner · San Bernardino County
License #1049832 · Status: CLEAR ✓
(909) 525 7878
KORMEX CONSTRUCTION INC
Workers' Comp ActiveLicensed 2021 · 5 years in business
Corporation · San Bernardino County
License #1073142 · Status: CLEAR ✓
(909) 518 5700
Beyond Landscaping: Specialty Licenses in ONTARIO
Some ONTARIO landscapers also hold additional CSLB classifications — useful when a project spans trades like drainage, concrete, or pools.
- 2 also hold General Engineering (A)
- 6 also hold General Building (B)
- 2 also hold Concrete (C-8)
- 1 also hold C17 (C17)
- 2 also hold Swimming Pool (C53)
ONTARIO Landscaping Market at a Glance
- 32 contractors hold a current, clear CSLB C-27 landscaping license
- 17 (53%) carry active workers' compensation insurance
- 14 (44%) are incorporated (Corporation or LLC)
- 16 have been licensed for 10 or more years
- Average time in business: 13.9 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 ONTARIO?
ONTARIO'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.
