The roofing contractor operating as Reliable San Diego Roofer holds CSLB License #1079579 with a C-39 Roofing classification under veteran-owned operator Edwin Guzman, working from an Adams Avenue address in Normal Heights, San Diego. The company carries both GAF Certified Contractor and Owens Corning Preferred Contractor designations, manufacturer certifications that require verified installation training, active insurance, and a documented record of completed projects before either brand extends warranty-backing authority. Attic ventilation upgrades on re-roof projects run through Surf Bros HVAC during the same mobilization window, allowing both the roofing tear-off and ductwork modifications to happen before the new deck is sealed. Residential re-roofs across the 92116 ZIP use Owens Corning TruDefinition Duration shingles, an impact-resistant asphalt line rated to 130-mph wind uplift with SureNail Technology for strip-to-strip adhesion on high-pitch applications. Scope on a typical Normal Heights bungalow includes full tear-off, decking inspection and spot replacement, synthetic underlayment, new flashing at dormers and valleys, and drip-edge installation at eaves and rakes. The company also handles tile roofing, which is common on the 1920s-era Spanish Revival homes scattered along Adams Avenue and throughout the mesa neighborhoods above Mission Valley. Commercial flat-roof systems — TPO, modified bitumen, and spray-foam applications — round out the service portfolio for multi-tenant properties in the corridor. Electrical work for rooftop conduit and junction boxes during solar-ready re-roofs is typically subcontracted to Frank Electric Inc, which handles panel upgrades and conduit runs for photovoltaic tie-ins. GAF Certified Contractor status qualifies each installation for the manufacturer's System Plus Limited Warranty, covering both materials and workmanship for the warranty period.