Lic #1007864 · San Francisco County · Finishing
Epoxy Coating Services
Seamless epoxy floor coatings for garages, retail floors, showrooms, and warehouses — decorative to heavy-duty industrial.
Retail flagship maintenance, high-rise improvements, and Victorian-era remodel expertise in one of the world's most demanding building environments.
From metallic designer floors in Los Altos garages to high-build industrial systems in Central Valley warehouses, JMG's epoxy crews prepare, coat, and seal concrete that takes real abuse — grinding, moisture testing, and crack repair included on every job.
In San Francisco and across San Francisco County, JMG delivers epoxy coatings under California Contractor's License #1007864 — permitted, inspected, and personally overseen by owner Jerry Guinn. Retail and commercial spaces get brand-color flake and quartz systems installed after hours; residential clients get garage, ADU, and showroom floors with slip-resistant, easy-clean finishes. Every system is specified for the traffic it will actually carry.
San Francisco builds answer to DBI — and often to the Planning Department's historic-preservation review. Soft-story retrofits, Victorian and Edwardian renovations, and multi-trade tenant improvements across the city's retail corridors: JMG navigates the permits, the neighbors, and the logistics of building in a dense city.
What's included in San Francisco
Recent epoxy coatings work
The process in San Francisco
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.
Epoxy Coatings in San Francisco — FAQ
A typical two-car garage runs two to three days including grinding and prep; large commercial floors are phased so operations continue. Full cure before vehicle traffic is usually five to seven days — we give you exact re-entry times.
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Epoxy Coatings · San Francisco