Cannon Building holds CSLB classifications A, B, C-10, and C-20 from its Carlsbad branch on Tiger Run Court near Poinsettia Park, giving the firm self-perform authority across general engineering, general building, electrical, and HVAC scopes. That multi-trade licensing mirrors the mechanical-systems depth of Sherlock Plumbing, Heating & Air, though Cannon applies it to commercial construction spanning life-science cleanrooms, healthcare facilities, and industrial plants. Since its founding in the mid-1990s, the company has completed more than 1,300 projects ranging from $250K to $35M across two California offices. The life-science division builds ISO-classified GMP production environments with dedicated WFI, RO, and compressed-air systems, a technical tier that requires the same precision electrical infrastructure Wheyland Electric delivers on local commercial buildouts. OSHPD-regulated healthcare renovations account for a significant share of the portfolio, including radiation-oncology vault additions requiring subgrade structural modification and 3D BIM-coordinated utility relocation.