Delaware licenses septic system installers and septage haulers through DNREC’s Division of Water. This page lists approved licensees from the official state file.
Showing the first 120 of 349 certified companies (A–Z). Browse every Delaware company by name:
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| Company | Location | County | Certifications | License # |
|---|---|---|---|---|
| A-1 Sanitation Service Inc | — | — | Septage Hauler | 5896F |
| A-1 Sanitation Service Inc | — | — | Septage Hauler | 6308F |
| A-1 Sanitation Service Inc | — | — | Septage Hauler | 5424F |
| A-1 Sanitation Service Inc | — | — | Septage Hauler | 5575F |
| A-1 Sanitation Service Inc | — | — | Septage Hauler | 5600F |
| A-1 Sanitation Service Inc | — | — | Septage Hauler | 6304F |
| Aaa Environmental Services, Llc | — | — | Installer | 2347E3 |
| Alvin E Mast | — | — | Installer | 2424E3 |
| American Outback Septic Services Llc | — | — | Septage Hauler | 6344F |
| American Sanitation Service, Llc | — | — | Septage Hauler | 5716F |
| Amick Farms | — | — | Septage Hauler | 6238F |
| Andy'S Plumbing & Heating | — | — | Septage Hauler | 6386F |
| Apple Designs | — | — | Installer | 2099E3 |
| Arcaplc | — | — | Installer | 4658E3 |
| Arcaplc | — | — | Septage Hauler | 4658F |
| Artesian Resources | — | — | Installer | 2334E3 |
| Artesian Resources | — | — | Installer | 2334E4 |
| Artesian Resources | — | — | Septage Hauler | 2334F |
| Artesian Resources | — | — | Septage Hauler | 5963F |
| Artesian Resources | — | — | Septage Hauler | 5965F |
| Artesian Resources | — | — | Septage Hauler | 6010F |
| Artesian Resources | — | — | Septage Hauler | 6011F |
| Artesian Waste Water Management Inc | — | — | Septage Hauler | 6326F |
| Artesian Waste Water Management Inc | — | — | Septage Hauler | 6335F |
| Artesian Water Company | — | — | Septage Hauler | 6250F |
| Artesian Water Company | — | — | Septage Hauler | 6194F |
| Artesian Water Company | — | — | Septage Hauler | 6246F |
| Asap Pumping Service | — | — | Installer | 5201E3 |
| Asap Pumping Service | — | — | Septage Hauler | 5201F |
| Asap Pumping Service | — | — | Septage Hauler | 5402F |
| Asap Pumping Service | — | — | Septage Hauler | 5456F |
| Asap Pumping Service | — | — | Septage Hauler | 6149F |
| Asap Pumping Service | — | — | Septage Hauler | 6343F |
| B.L. Phippin And Son Construction | — | — | Installer | 6184E1 |
| Blevins Excavating | — | — | Installer | 2018E3 |
| Bo'S Construction | — | — | Installer | 4438E4 |
| Bo'S Construction | — | — | Installer | 6241E1 |
| Bobcat Septic Services Llc | — | — | Installer | 4591E3 |
| Bobcat Septic Services Llc | — | — | Septage Hauler | 4591F |
| Bolt, Llc | — | — | Septage Hauler | 6311F |
| Boozer Excavation Co, Inc | — | — | Installer | 4188E3 |
| Boston Beer | — | — | Septage Hauler | 6351F |
| Brandywine Septic Services Inc. | — | — | Septage Hauler | 5957F |
| Bunker Hill Services Inc | — | — | Installer | 5525E3 |
| Byards Construction & Sons | — | — | Installer | 2189E3 |
| C M Kristman Excavating | — | — | Installer | 2444E3 |
| C M Kristman Excavating | — | — | Septage Hauler | 2444F |
| C White & Sons Llc | — | — | Installer | 5845E4 |
| C White And Sons | — | — | Installer | 4171E3 |
| C White And Sons | — | — | Installer | 4175E3 |
| C.M. Kristman Excavating Inc. | — | — | Installer | 5619E3 |
| Central Backhoe Services Llc | — | — | Septage Hauler | 2467F |
| Central Backhoe Services Llc | — | — | Installer | 2467E3 |
| Chaesapeake Environmental Services | — | — | Septage Hauler | 5972F |
| Chaesapeake Environmental Services | — | — | Septage Hauler | 6046F |
| Chaesapeake Environmental Services | — | — | Septage Hauler | 6047F |
| Chaesapeake Environmental Services | — | — | Septage Hauler | 6048F |
| Chaesapeake Environmental Services | — | — | Septage Hauler | 6049F |
| Chaesapeake Environmental Services | — | — | Septage Hauler | 5417F |
| Chaesapeake Environmental Services | — | — | Septage Hauler | 6050F |
| Chaesapeake Environmental Services | — | — | Septage Hauler | 6059F |
| Chesapeake Environmental Services | — | — | Septage Hauler | 6297F |
| Chesapeake Environmental Services | — | — | Septage Hauler | 6309F |
| Chesapeake Environmental Services | — | — | Septage Hauler | 6313F |
| Chesapeake Environmental Services | — | — | Septage Hauler | 6269F |
| Chesapeake Environmental Services | — | — | Septage Hauler | 6289F |
| Chesapeake Environmental Services | — | — | Septage Hauler | 6316F |
| Chesapeake Environmental Services | — | — | Septage Hauler | 6318F |
| Chesapeake Environmental Services | — | — | Septage Hauler | 6357F |
| Chesapeake Environmental Services | — | — | Septage Hauler | 6358F |
| Chesapeake Environmental Services | — | — | Septage Hauler | 6363F |
| Chesapeake Environmental Services | — | — | Septage Hauler | 6364F |
| City Of Rehoboth Beach Wastewater | — | — | Septage Hauler | 6360F |
| City Of Rehoboth Beach Wastewater | — | — | Septage Hauler | 6367F |
| City Of Rehoboth Beach Wastewater | — | — | Septage Hauler | 6373F |
| City Of Rehoboth Beach Wastewater | — | — | Septage Hauler | 6365F |
| City Of Rehoboth Beach Wastewater | — | — | Septage Hauler | 6370F |
| City Of Rehoboth Beach Wastewater | — | — | Septage Hauler | 6376F |
| Clark'S Environmental Services, Llc | — | — | Septage Hauler | 5780F |
| Clark'S Environmental Services, Llc | — | — | Septage Hauler | 5788F |
| Clark'S Environmental Services, Llc | — | — | Septage Hauler | 5900F |
| Clark'S Environmental Services, Llc | — | — | Septage Hauler | 5901F |
| Clark'S Environmental Services, Llc | — | — | Septage Hauler | 5742F |
| Clean Delaware | — | — | Installer | 4570E3 |
| Clean Delaware | — | — | Installer | 4600E1 |
| Clean Delaware | — | — | Septage Hauler | 4600F |
| Clean Delaware | — | — | Septage Hauler | 5571F |
| Clean Delaware | — | — | Septage Hauler | 5679F |
| Clean Delaware | — | — | Installer | 6061E1 |
| Clean Delaware | — | — | Septage Hauler | 6061F |
| Clean Delaware | — | — | Septage Hauler | 6105F |
| Clean Delaware | — | — | Septage Hauler | 6110F |
| Clean Delaware | — | — | Septage Hauler | 6271F |
| Clean Delaware | — | — | Septage Hauler | 4570F |
| Clean Delaware | — | — | Installer | 4579E3 |
| Clean Delaware | — | — | Septage Hauler | 4579F |
| Clean Delaware | — | — | Septage Hauler | 5033F |
| Clean Delaware | — | — | Septage Hauler | 5203F |
| Clean Delaware | — | — | Installer | 5483E3 |
| Clean Delaware | — | — | Septage Hauler | 5483F |
| Clean Delaware | — | — | Septage Hauler | 5653F |
| Clean Delaware | — | — | Septage Hauler | 5956F |
| Clean Delaware | — | — | Septage Hauler | 6044F |
| Clean Delaware | — | — | Septage Hauler | 6106F |
| Clean Delaware | — | — | Septage Hauler | 6107F |
| Clean Delaware | — | — | Septage Hauler | 6108F |
| Clean Delaware | — | — | Installer | 6110E1 |
| Clean Delaware | — | — | Septage Hauler | 6114F |
| Clean Delaware | — | — | Septage Hauler | 6233F |
| Clean Delaware | — | — | Septage Hauler | 6273F |
| Clean Delaware Llc | — | — | Septage Hauler | 6265F |
| Clean Delaware Llc | — | — | Septage Hauler | 6306F |
| Clean Delaware, Inc | — | — | Septage Hauler | 6312F |
| Clean Delaware, Inc | — | — | Septage Hauler | 6369F |
| Clean Delaware, Inc | — | — | Septage Hauler | 6372F |
| Clean Delaware, Inc | — | — | Septage Hauler | 6331F |
| Clean Delaware, Inc | — | — | Septage Hauler | 6337F |
| Clean Delaware, Inc | — | — | Septage Hauler | 6378F |
| Clyde Quigley & Son | — | — | Installer | 2278E3 |
| Clyde Quigley & Son | — | — | Installer | 6284E1 |
Most directories only tell you who to call. These are the cases where the honest answer is that you may not need this service at all, and the mistakes that cost people the most money.
Typical septic pumping pricing, with sources: what this costs in DE →
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