Lic #1007864 · San Mateo County · MEP Engineering
Electrical — Commercial & Residential
Licensed electrical work from panel upgrades and EV charging to retail lighting maintenance programs.
America's most exclusive zip code. Discreet, white-glove contracting for ultra-luxury estates and legacy Peninsula properties.
JMG designs and installs electrical systems for high-demand modern living — 200A+ panel upgrades, whole-estate lighting, EV charging, and dedicated circuits for luxury kitchens and home theaters across Silicon Valley.
In Atherton and across San Mateo County, JMG delivers electrical under California Contractor's License #1007864 — permitted, inspected, and personally overseen by owner Jerry Guinn. For retail and commercial clients, we deliver code corrections, lighting retrofits, and rapid-response maintenance that keeps storefronts lit and operational from San Francisco to San Diego.
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 electrical 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.
Electrical in Atherton — FAQ
Always. Panel upgrades, EV chargers, new circuits, and rewires are permitted and inspected under our license — you receive the signed-off permit card at completion.
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Electrical · Atherton