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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| Haltom Plumbing Company LLC | Shreveport, LA | — | Installer (Basic)Installer (Combination) | 31957 |
| Hattaway Plumbing LLC | Farmerville, LA | — | Installer (Basic)Installer (Combination) | 32217 |
| Hemphill Septic Service | West Monroe, LA | — | Installer (Basic)Installer (Combination)Installer (Maintenance) | 986 |
| Henderson Construction | Kenner, LA | — | Installer (Basic) | 32197 |
| Heritage Septic Services LLC | DeRidder, LA | — | Installer (Basic)Installer (Combination) | 32247 |
| High Ten Services LLC | Norwood, LA | — | Installer (Basic)Installer (Combination) | 31499 |
| Highland Pumping Co., LLC | Kentwood, LA | — | Installer (Basic)Installer (Combination) | 40116 |
| Holly Construction | Baton Rouge, LA | — | Installer (Basic)Installer (Combination) | 31772 |
| Home, Land, & Septic Construction LLC | Abita Springs, LA | — | Installer (Basic)Installer (Combination) | 40030 |
| Honey Dippers | Mandeville, LA | — | Installer (Basic)Installer (Combination) | 40031 |
| Hoot Systems LLC | Lake Charles, LA | — | Installer (Basic)Installer (Combination) | 31278 |
| Hover Septic Services LLC | Thibodaux, LA | — | Installer (Basic)Installer (Combination) | 40076 |
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