Lic #1007864 · Santa Clara County · MEP Engineering
HVAC — Commercial & Residential
Rooftop package units, retail preventative maintenance, and Title-24 compliant climate systems.
Premier residential renovations and ADU construction for Professorville estates, tech-founder homes, and Stanford-adjacent properties.
JMG services and installs commercial HVAC for retail portfolios — the same rapid-response discipline trusted by national brands like Starbucks — with after-hours crews that never disrupt business hours.
In Palo Alto and across Santa Clara County, JMG delivers hvac under California Contractor's License #1007864 — permitted, inspected, and personally overseen by owner Jerry Guinn. For residential clients, we design high-efficiency heat-pump systems, zoning, and smart controls that keep luxury homes silent, comfortable, and energy-compliant.
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 hvac 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.
HVAC in Palo Alto — FAQ
Yes — crane picks are scheduled before opening or on closed days. Most like-for-like rooftop unit swaps are same-day, and the store opens on time.
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HVAC · Palo Alto