| Company | Location | Certifications | License # |
|---|---|---|---|
| Carl J Englestad | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0029051 |
| Cesar Zuniga | — | Installer (Class I) | OS0039974 |
| Dale Reid Davenport | — | Installer (Class II)Inspector (Maintenance Provider) | OS0007587 |
| Daniel C Grannis | — | Installer (Class II)Inspector (Maintenance Provider) | OS0037819 |
| Herbert Larenze Rs Harker | — | Designer (Site Evaluator) | OS0008656 |
| Katie Loving | — | Installer (Class I) | OS0038891 |
| Michael Joseph Jr Moslener | — | Installer (Class I) | OS0041527 |
| Ryan C Cooper | — | Installer (Class I) | OS0039573 |
| Samuel Alves Mota | — | Installer (Class II)Designer (Site Evaluator)Inspector (Maintenance Provider) | OS0038661 |
| Thomas W Davis | — | Installer (Class II)Inspector (Maintenance Provider) | OS0027548 |
| Travis Pearson | — | Installer (Class I) | OS0040997 |
11 companies in the TCEQ OSSF (On-Site Sewage Facility) occupational licenses are based in Rockwall County as of 2026-07-23. Companies based elsewhere in Texas also commonly serve the county.
Tell us what you need — we'll connect you with state-certified companies serving your area. No obligation.