Lic #1007864 · Santa Clara County · Envelope
Roofing Systems & Waterproofing
Composition, tile, and flat roofing systems with forensic leak diagnostics and full waterproofing.
Estate contracting for hillside properties, vineyard-adjacent residences, and custom homes in the foothills of the Santa Cruz Mountains.
JMG installs and repairs roofing systems built for California microclimates — from wind-rated composition shingles in the East Bay to clay tile estates in Saratoga and cool-roof flat systems on commercial corridors.
In Saratoga and across Santa Clara County, JMG delivers roofing under California Contractor's License #1007864 — permitted, inspected, and personally overseen by owner Jerry Guinn. Our leak-detection protocols trace water intrusion to its source before we ever lift a shingle, saving owners from repeat repairs and interior damage.
Saratoga projects near the Village respect its historic character, while hillside homes fall under the city's hillside development standards — grading limits, view protection, and engineered drainage. From Saratoga Village storefront refreshes to hillside estate rebuilds, we coordinate the review boards so approvals never stall your build.
What's included in Saratoga
Recent roofing work
The process in Saratoga
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.
Roofing in Saratoga — FAQ
Most composition-shingle re-roofs run three to five working days; tile and flat systems run longer. We tear off only what we can dry-in the same day — your home is never left open overnight.
More services in Saratoga
Roofing in other cities
Roofing · Saratoga