Lic #1007864 · San Mateo County · General Contracting
Remodels — Commercial & Residential
Whole-home renovations and retail build-outs, delivered design-build under one license.
America's most exclusive zip code. Discreet, white-glove contracting for ultra-luxury estates and legacy Peninsula properties.
JMG runs full-scope remodels: celebrity-mansion kitchens and baths, whole-home transformations in Palo Alto and Menlo Park, and fast-track retail tenant improvements for national brands.
In Atherton and across San Mateo County, JMG delivers remodels under California Contractor's License #1007864 — permitted, inspected, and personally overseen by owner Jerry Guinn. With 16 trades in-house, there is no subcontractor carousel — one contract, one schedule, one accountable owner: Jerry Guinn, Lic #1007864.
Atherton builds answer to the Town's Building Department on Station Lane — and to the heritage-tree ordinance that shapes where additions, ADUs, and driveways can land on the town's one-acre estate lots. We plan around protected oaks, manage design review, and deliver the discreet, high-touch project management Lindenwood and West Atherton estates expect.
What's included in Atherton
Recent remodels work
The process in Atherton
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.
Remodels in Atherton — FAQ
Usually, yes. We sequence work to keep a working kitchen or bath available, contain dust with negative-air barriers, and keep predictable hours. If a phase genuinely requires you out, you will know before we start.
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Remodels · Atherton