Silicon Valley · Santa Clara County · Hillside Estate Contracting
General Contractor
Acre-plus hillside estates with demanding engineering — retaining structures, long driveways, and architect-driven custom construction.
JMG Construction Services — California Contractor's License #1007864 — delivers all sixteen of our in-house trades to Los Altos Hills and greater Santa Clara County. From estate remodels and custom ADUs to roofing, electrical, plumbing, and commercial HVAC, every Los Altos Hills project is personally scoped by owner Jerry Guinn and executed by our own crews — never brokered to unknown subcontractors.
Whether the brief is a celebrity-grade whole-estate renovation, a discreet retail maintenance program, or a high-value ADU addition, our clients across Santa Clara County get one contract, one schedule, and one accountable license.
Los Altos Hills keeps its rural character by rule: one-acre minimum lots, private lanes, the town pathway system, and properties that may run on septic rather than sewer. Projects here demand site-sensitive engineering and careful utility planning — exactly the ground-up estate work JMG self-performs with in-house crews.
All services in Los Altos Hills
Recent work in the Los Altos Hills area
How projects run in Los Altos Hills
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.
Los Altos Hills construction — FAQ
Yes — JMG Construction Services holds California Contractor's License #1007864 and pulls permits in Santa Clara County regularly. Every project is permitted, inspected, and signed off before we call it done.
Los Altos Hills Projects