Lic #1007864 · Contra Costa County · Structural
Commercial & Residential Structural Framing
Load-bearing walls, additions, and seismic-smart structural framing engineered for California.
The East Bay's retail capital — Broadway Plaza-caliber tenant improvements, striping, and luxury home upgrades in the surrounding hills.
JMG frames room additions, ADU shells, and open-concept structural conversions with engineered lumber, steel, and hold-down systems that satisfy the strictest Bay Area building departments.
In Walnut Creek and across Contra Costa County, JMG delivers framing under California Contractor's License #1007864 — permitted, inspected, and personally overseen by owner Jerry Guinn. Every structural modification is permitted, engineered, and inspected — protecting both your investment and your family's safety in earthquake country.
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 framing 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.
Framing in Walnut Creek — FAQ
Yes — structural repairs, sistering joists, replacing undersized headers, and shear-wall corrections, engineered where required. We shore, repair, and inspect in sequence.
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Framing · Walnut Creek