Semper Solaris in downtown San Diego's Gaslamp Quarter holds CSLB #978152 and #1083681 for solar, roofing, HVAC, and window installation from its Fifth Avenue office. Solar projects pair rooftop photovoltaic arrays with Tesla Powerwall or Enphase battery storage, a combined system that often requires main-panel upgrades from electricians such as All City Electric, Inc. before the city grants permission to operate. Founded in 2012 by a former U.S. Marine Corps captain, the company holds Owens Corning Platinum Preferred Contractor status, which backs full re-roofs with a 50-year manufacturer warranty. After a full tear-off and re-deck, the crew handles fascia and drip-edge metalwork that must align with any exterior recoating—an overlap point with painting contractors such as CertaPro Painters of La Jolla and Central San Diego working the same structure. The highest-complexity projects combine a full roof replacement, an integrated solar array with battery backup, and a matched HVAC changeout into a single permitted scope on one property.