The Peninsula · Santa Clara County · Premier Residential
General Contractor
Premier residential renovations and ADU construction for Professorville estates, tech-founder homes, and Stanford-adjacent properties.
JMG Construction Services — California Contractor's License #1007864 — delivers all sixteen of our in-house trades to Palo Alto and greater Santa Clara County. From estate remodels and custom ADUs to roofing, electrical, plumbing, and commercial HVAC, every Palo Alto 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.
Palo Alto's Development Services center on Hamilton Avenue runs one of the Bay Area's most detailed review processes — and Professorville or Downtown North projects can trigger historic review. Eichler and mid-century homes get period-correct detailing; new work gets full Title 24 energy coordination. JMG handles the paperwork so your schedule survives it.
All services in Palo Alto
Recent work in the Palo Alto area
How projects run in Palo Alto
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.
Palo Alto 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.
Palo Alto Projects