| Company | Location | Certifications | License # |
|---|---|---|---|
| Alexander Precast | Taylorsville, NC | Installer (Level II) | 6021 |
| B & D Grading | Hiddenite, NC | Installer (Level IV) | 11244 |
| Barnes Backhoe & Grading | Taylorsville, NC | Installer (Level IV)Inspector | 1017 |
| Bethelem Equip Co Inc | Hickory, NC | Installer (Level II) | 3425 |
| Bethlehem Manufacturing Co Inc | Hickory, NC | Installer (Level IV)Inspector | 2419 |
| Bethlehem Plumbing Company | Taylorsville, NC | Installer (Level IV) | 11562 |
| Bill Greene Grading And Const | Taylorsville, NC | Installer (Level II) | 1786 |
| Bowman Trucking & Landscaping | Hickory, NC | Installer (Level IV)Inspector | 1828 |
| Bowman'S Roost Grading Llc | Hickory, NC | Installer (Level II) | 9492 |
| Bowmans Grading | Taylorsville, NC | Installer (Level II) | 1770 |
| Briar Cothren | Taylorsville, NC | Installer (Level II) | 15101 |
| Carolina Clearing And Excavation | Taylorsville, NC | Installer (Level II) | 9414 |
| Charles Inspection Service | Taylorsville, NC | Inspector | 5375I |
| Construction By Clark Llc | Hickory, NC | Installer (Level II) | 9688 |
| Cothren & Son Llc | Taylorsville, NC | Installer (Level IV)Inspector | 1838 |
| Creekside Grading Llc | Taylorsville, NC | Installer (Level II) | 15254 |
| Esb Transport Llc | Taylorsville, NC | Installer (Level II) | 14171 |
| Frye Grading Llc | Taylorsville, NC | Installer (Level II) | 1785 |
| Frye Grading Llc | Taylorsville, NC | Installer (Level II) | 9673 |
| George'S Grading & Septic Tank Service L | Taylorsville, NC | Installer (Level IV)Inspector | 2708 |
| Harden Construction Llc | Taylorsville, NC | Installer (Level IV) | 11117 |
| Hoeing Around Excavation Llc | Hickory, NC | Installer (Level II) | 9431 |
| K & M Grading | Taylorsville, NC | Installer (Level IV) | 1697 |
| L & J Septic Services | Harmony, NC | Inspector | 11915I |
| Millers Septic Service | Taylorsville, NC | Installer (Level IV)Inspector | 1858 |
| Millers Septic Service | Taylorsville, NC | Installer (Level IV)Inspector | 1880 |
| Nelson Hart | Taylorsville, NC | Installer (Level II) | 14625 |
| Powell Septic Tank Service | Taylorsville, NC | Installer (Level IV)Inspector | 1864 |
| Ritchie Bowman Landscaping | Taylorsville, NC | Installer (Level II) | 4119 |
| Scott Greene Grading & Const | Taylorsville, NC | Installer (Level II) | 1787 |
| Shane Jarrett Grading & Hauling | Taylorsville, NC | Installer (Level IV) | 1851 |
| Tanner James George | Taylorsville, NC | Installer (Level II) | 9440 |
| Total Landscape Creations & Hauling | Taylorsville, NC | Installer (Level II) | 9854 |
| Wes Yount Landscaping | Taylorsville, NC | Installer (Level II) | 3893 |
| Zachary Philip Mundy | Taylorsville, NC | Installer (Level II) | 15157 |
35 companies in the NCOWCICB certified onsite wastewater contractor & inspector lists are based in Alexander County as of 2026-07-23. Companies based elsewhere in North Carolina also commonly serve the county.
Tell us what you need — we'll connect you with state-certified companies serving your area. No obligation.