Pro 365 Plumbing in Santee holds CSLB license #906977 and has serviced San Diego County plumbing infrastructure since the late 1980s from its base in the 92071 ZIP. The company covers the full C-36 scope—drain cleaning, faucet repair, whole-house repipe, and new-construction water and sewer systems—work that runs parallel to the electrical rough-ins Solid Electrical Services on Magnolia Avenue performs in the same Santee builds. Tankless water heater installations require gas-line resizing and dedicated venting, a retrofit Pro 365 handles for homeowners upgrading from standard 40- and 50-gallon tank units along the Mission Gorge Road corridor. New-construction sewer tie-ins for Santee residential developments involve coordination with general contractors such as Legacy Home Construction, particularly on properties near the Carlton Hills and Fanita Parkway growth areas. Sewer lateral replacements at this scope use 4-inch HDPE DR-11 pipe rated for 160 PSI, joined by electrofusion couplings and tested at 150 percent of working pressure per San Diego County standards.