Swannco LLC in Alpine provides metal fabrication, welding, sand blasting, powder coating, and painting services from Cougar Summit in the 91901 ZIP code. Custom metalwork including gates, running boards, and structural repairs integrates with the fencing and perimeter systems installed by Alpine Fence Inc. on Alpine Boulevard. Incorporated in 2023, the shop serves East County's residential and commercial properties with design, prototyping, and manufacturing capabilities alongside mobile welding for on-site steel repair. Automated gate fabrication and hinge assembly work coordinates with motorized access system installers such as A Access Automation & Gate in Lakeside for complete entry system buildouts. The shop's small mobile crane rated at 1,000 pounds at seven feet of reach enables on-site positioning of fabricated steel components including beams, headers, and custom ranch-style entry arches.