Official list entries
Authority-first tester table
Use the governing authority list first. Provider profiles and sponsor routing remain secondary to the official approval context.
| Full name | License notes | Company or label | Review date |
|---|---|---|---|
| Backflow Preventer Test | Official Garland backflow tester listed by Garland Water Utilities | Officially listed on the Garland tester PDF | 2026-04-04 |
| Polk Mechanical | Official Garland backflow tester listed by Garland Water Utilities | Officially listed on the Garland tester PDF | 2026-04-04 |
| Quality Automatic Fire Protection | Official Garland backflow tester listed by Garland Water Utilities | Officially listed on the Garland tester PDF | 2026-04-04 |
| Ro-Teck Backflow | Official Garland backflow tester listed by Garland Water Utilities | Officially listed on the Garland tester PDF | 2026-04-04 |