Founded in 2008 after the founder spent five prior years inside the utility-scale solar industry, Gen819 Roofing San Diego operates from a Thorn Street base in Hillcrest installing CeDUR synthetic wood shake, standing-seam metal, and commercial TPO/PVC single-ply membranes. CeDUR Walden shakes are the residential headline — a Class A fire-rated polymer composite approved for California's Wildland-Urban Interface zones that reads visually identical to cedar without the ember-ignition profile, a product pairing installed simultaneously with rooftop PV array work by Mission Solar Electric so that mounting-point flashing sits under the course rather than cut through a finished surface later. The crew integrates solar-mount flashing into the underlayment layer at install rather than retrofitting penetrations into a completed roof, eliminating the double-trip leak liability that comes from decoupled roof-and-solar trades. Standing-seam metal installs serve Hillcrest's modern-coastal remodels and handle the salt-air corrosion profile of homes within a few miles of the bay. Gutter and scupper tie-ins route into the site grading and stormwater diagrams produced by GroundLevel Landscape Architecture when daylight points sit too close to foundation footings to solve with a gutter-extension patch alone. Commercial flat-roof restoration across corridor storefronts uses fully adhered TPO with reinforced seams and manufacturer warranties running to twenty years. The most complex project on the board is a full CeDUR synthetic-shake re-roof with integrated monocrystalline PV array and lithium battery storage, delivered as one sequenced install rather than three separate contractor visits.