CSLB-Verified · California
Licensed Landscaping Contractors in LOS ALTOS, CA
9 verified contractors · 4 carry active workers' comp · Average 19 years in business · Updated June 2026
Finding a reliable landscaping contractor in LOS ALTOS means looking beyond reviews. Of the 9 CSLB-licensed contractors operating in LOS ALTOS, 4 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 LOS ALTOS
LOS ALTOS sits in USDA Plant Hardiness Zone 9b, with winter minimum temperatures of 25–30°F. This means a true dormant season — lawns and most perennials slow significantly from December through February. Contractors experienced in Zone 9b know to schedule irrigation shutdown before first frost, design planting schemes around the zone's long dry summers, and recommend drought-tolerant species that handle both the heat and the occasional cold snap. Ask any contractor you hire whether their plant selections are rated for Zone 9b minimums.
9 Licensed Landscapers in LOS ALTOS
HARMONYSCAPES
Workers' Comp ActiveLicensed 2009 · 17 years in business
Sole Owner · Santa Clara County
License #931608 · Status: CLEAR ✓
(650) 492 0882
PAZMANY BROS LANDSCAPING
Workers' Comp ActiveLicensed 2014 · 12 years in business
Corporation · Santa Clara County
License #992858 · Status: CLEAR ✓
(650) 941 8596
LOS ALTOS LANDSCAPE DEVELOPMENT
WC Exempt (Sole Owner)Licensed 1985 · 41 years in business
Sole Owner · Santa Clara County
License #474772 · Status: CLEAR ✓
(650) 940 1916
NEW GROWTH LANDSCAPE AND GARDEN
WC Exempt (Sole Owner)Licensed 1991 · 35 years in business
Sole Owner · Santa Clara County
License #620487 · Status: CLEAR ✓
(650) 493 2229
KAMANGAR BABAK
WC Exempt (Sole Owner)Licensed 2009 · 16 years in business
Sole Owner · Santa Clara County
License #937181 · Status: CLEAR ✓
(650) 245 0245
SANCTUARY LANDSCAPING
WC Exempt (Sole Owner)Licensed 2012 · 14 years in business
Sole Owner · Santa Clara County
License #969307 · Status: CLEAR ✓
(650) 823 4281
YARD ART LANDSCAPE INC
Workers' Comp ActiveLicensed 2019 · 7 years in business
Corporation · Santa Clara County
License #1051608 · Status: CLEAR ✓
(408) 394 6904
HARDOY RENE INC
No Active WCLicensed 1992 · 34 years in business
Corporation · Santa Clara County
License #643337 · Status: CLEAR ✓
(408) 981 8287
QUALITY GREEN GARDENING CORP
Workers' Comp ActiveLicensed 2022 · 3 years in business
Corporation · Santa Clara County
License #1094011 · Status: CLEAR ✓
(669) 228 3221
Beyond Landscaping: Specialty Licenses in LOS ALTOS
Some LOS ALTOS landscapers also hold additional CSLB classifications — useful when a project spans trades like drainage, concrete, or pools.
- 1 also hold General Building (B)
LOS ALTOS Landscaping Market at a Glance
- 9 contractors hold a current, clear CSLB C-27 landscaping license
- 4 (44%) carry active workers' compensation insurance
- 4 (44%) are incorporated (Corporation or LLC)
- 7 have been licensed for 10 or more years
- Average time in business: 19.9 years
- Longest-established contractor: 41 years (licensed 1985)
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.
Do landscapers in LOS ALTOS winterize irrigation systems?
Yes. LOS ALTOS sees a real frost season, so experienced contractors schedule irrigation shutdown before first frost and choose cold-hardy plant material rated for the local winter lows.
