Sanitation system contractors in Ontario, CA
9 licenses with the C-42 classification list Ontario (San Bernardino County) as their address with the state, 8 of them active. Active licenses with nothing flagged come first.
- Aranda'S Sanitation SystemsC-42 · #1053122 Ontario · San Bernardino County Active
- C P Construction Co IncA · C-12 · C-34 · C-42 · #304795 Ontario · San Bernardino County Active
- H SepticC-42 · #1149300 Ontario · San Bernardino County Active
- High Speed Rooter and Plumbing IncA · C-10 · C-20 · C-36 +1 · #1017796 Ontario · San Bernardino County Active
- Pro Tech PlumbingC-36 · C-42 · #915091 Ontario · San Bernardino County Active
- Senor Septic Construction & PumpingC-42 · #888517 Ontario · San Bernardino County Active
- Senor Septic Construction and Pumping IncC-42 · #1048170 Ontario · San Bernardino County Active
- Urgent Septic Solutions LLCC-42 · #1121506 Ontario · San Bernardino County Active
- Rodriguez Brothers Engineering IncA · C-42 · #670969 Ontario · San Bernardino County Suspended: bond lapsed
Source: CSLB license file, Nov 8, 2026All trades in Ontario