Lic #1007864 · Contra Costa County · General Contracting
Remodels — Commercial & Residential
Whole-home renovations and retail build-outs, delivered design-build under one license.
The East Bay's retail capital — Broadway Plaza-caliber tenant improvements, striping, and luxury home upgrades in the surrounding hills.
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 Walnut Creek and across Contra Costa 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.
Walnut Creek pairs a high-traffic downtown retail core with hillside neighborhoods in Saranap and Northgate. Retail refreshes downtown demand night work and zero downtime; hillside homes demand fire-safe materials and defensible-space detailing. JMG crews handle both on one schedule.
What's included in Walnut Creek
Recent remodels work
The process in Walnut Creek
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 Walnut Creek — 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 · Walnut Creek