5 Star Backflow Services Inc
What ProveHound checked
| State license | Washington L&I Plumbing Contractor (Backflow Specialty) #5STARSB785RZ · expires Jan 09, 2027 · official record Washington L&I · checked 2026-11-07 |
| On record since | On record since 2023 State records |
Verify directly with the state and the pro before hiring. Only checked facts are shown. How it works · Request a correction