Alpine Plumbing & Backhoe Inc on Alpine Blvd holds CSLB licenses under both C-36 Plumbing and B General Building classifications, combining full-service plumbing with on-site excavation capability. The dual-license structure allows the company to self-perform trenching for sewer-lateral replacement and septic-system installation without subcontracting earthwork, a scope that parallels the concrete-pour coordination handled by Back Country Concrete Pumping on Arnold Way. Twenty-one permitted building projects recorded through San Diego County document a history of new-construction rough-in, bathroom remodels, and water-heater changeouts across Alpine's residential parcels. Drain and sewer cleaning services use mechanical snake equipment and hydro-jet nozzles to clear root-bound clay laterals common to older Alpine Blvd properties, and the backhoe fleet supports utility-trench work that runs alongside underground electrical conduit installed by solar contractors like Clayco Electric Inc. Solar Specialist on Alpine Blvd. Repipe projects on pre-1980 galvanized systems convert to Type L copper or PEX-A manifold layouts with individual fixture shut-offs meeting current California Plumbing Code requirements.