Lic #1007864 · Santa Clara County · MEP Engineering
Residential & Commercial Plumbing
Full-service residential and commercial plumbing — repipes, tankless systems, and ADA restrooms, engineered and guaranteed.
Premier residential renovations and ADU construction for Professorville estates, tech-founder homes, and Stanford-adjacent properties.
From copper and PEX whole-house repipes in Atherton estates to ADA-compliant commercial restrooms, JMG's plumbing division handles rough-in through finish fixtures with in-house accountability.
In Palo Alto and across Santa Clara County, JMG delivers plumbing under California Contractor's License #1007864 — permitted, inspected, and personally overseen by owner Jerry Guinn. We coordinate directly with our HVAC and electrical crews, so remodels, ADUs, and tenant improvements move through inspection without costly trade conflicts.
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.
What's included in Palo Alto
Recent plumbing work
The process 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.
Plumbing in Palo Alto — FAQ
We plan PEX or copper routes through attics and crawlspaces to minimize openings — and because our sheet rock and paint crews are in-house, every patch disappears on the same job ticket.
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Plumbing · Palo Alto