Lic #1007864 · Santa Clara County · Commercial Solutions
Retail Maintenance & Rapid Response
The crew national brands call — multi-site retail maintenance from San Francisco to San Diego.
Luxury remodels and custom ADUs in one of Silicon Valley's wealthiest family communities — where lot values reward estate-level craftsmanship.
JMG keeps retail portfolios open and immaculate: punch-list turnarounds, fixture and signage repair, painting, drywall, and emergency response delivered to brand standards — including work for Starbucks locations.
In Los Altos and across Santa Clara County, JMG delivers retail maintenance under California Contractor's License #1007864 — permitted, inspected, and personally overseen by owner Jerry Guinn. One call covers every trade. Our after-hours crews work while your stores are closed, so revenue is never interrupted and corporate inspections always pass.
Los Altos Community Development guides projects through planning and building review with close attention to lot coverage and neighborhood scale. We remodel the city's classic ranch homes, build ADUs that respect its single-story streetscapes, and deliver downtown-adjacent commercial work without disrupting neighboring businesses.
What's included in Los Altos
Recent retail maintenance work



The process in Los Altos
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.
Retail Maintenance in Los Altos — FAQ
Active maintenance clients get same-day or next-morning response across our San Francisco to San Diego corridor. Emergency board-up and leak mitigation dispatch immediately.
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Retail Maintenance · Los Altos
