Lic #1007864 · Santa Clara County · Exterior
Commercial & Residential Landscaping
Full-service commercial and residential landscaping — estate gardens, retail grounds, hardscape, and smart irrigation across California.
Luxury remodels and custom ADUs in one of Silicon Valley's wealthiest family communities — where lot values reward estate-level craftsmanship.
JMG's landscaping division serves both sides of California: estate gardens and outdoor living for residential clients, and grounds programs for retail centers, campuses, and commercial properties — from the Bay Area to Sacramento, and San Francisco to San Diego.
In Los Altos and across Santa Clara County, JMG delivers landscaping under California Contractor's License #1007864 — permitted, inspected, and personally overseen by owner Jerry Guinn. Drought-tolerant conversions, smart irrigation, architectural lighting, and hardscape are engineered for beauty and for California's water reality — installed and maintained by the same in-house team.
Los Altos Community Development guides projects through planning and building review with close attention to lot coverage and neighborhood scale. We remodel the city's classic ranch homes, build ADUs that respect its single-story streetscapes, and deliver downtown-adjacent commercial work without disrupting neighboring businesses.
What's included in Los Altos
Recent landscaping work
The process in Los Altos
Private Consultation
Walk the property with owner Jerry Guinn. Honest scope, realistic timeline, and a written line-item estimate — free.
Design & 3D Rendering
See the finished project in photorealistic 3D before a single wall comes down. Finishes get locked before demo day.
Permits, Handled
Plans, submittals, corrections, and city or county coordination under CA License #1007864. You sign — we run the process.
Build & Final Inspection
Sixteen in-house trades on one schedule, one accountable owner. Inspection passed, walkthrough done, keys in hand.
Landscaping in Los Altos — FAQ
Yes — estate gardens and outdoor living for homeowners, plus grounds design, installation, and maintenance programs for retail centers, campuses, and commercial properties. One in-house team covers both.
Related reading
More services in Los Altos
Landscaping in other cities
Landscaping · Los Altos