Water conditioning contractors in San Diego, CA

9 licenses with the C-55 classification list San Diego (San Diego County) as their address with the state, 8 of them active. Active licenses with nothing flagged come first.

• ✓All Cities Water Treatment IncC-36 · C-55 · #631304 San Diego · San Diego County Active
• ✓All Pure Water TreatmentC-55 · #1015960 San Diego · San Diego County Active
• ✓Cal - Cool MechanicalC-20 · C-38 · C-55 · #741451 San Diego · San Diego County Active
• ✓Pure Lab Solutions IncC-55 · #978160 San Diego · San Diego County Active
• ✓Superior WaterC-55 · #1043039 San Diego · San Diego County Active
• ✓Triton Water Renewal LLCC-55 · #1078989 San Diego · San Diego County Active
• ✓Unicus Water SolutionsC-55 · #1135582 San Diego · San Diego County Active
• ✓Water Purification Systems IncC-36 · C-55 · #1017517 San Diego · San Diego County Active
• !High Quality Water of CAC-55 · #1000989 San Diego · San Diego County Suspended: no workers' comp

Source: CSLB license file, Nov 8, 2026All trades in San Diego