GroundRosterRobert Wiesner PlumbingLicensed
| Name | Robert Wiesner Plumbing |
| License number | 2394E3, 2394H |
| License type | Class E (System Contractor) ยท Class H (Systems Inspector) |
| License status | Approved |
| Location | Newark, Delaware 19702 |
| Phone | (302) 368-7766 |
Request a quote from Robert Wiesner Plumbing
What this license covers
- Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.
- Inspection: licensed to inspect existing septic systems; the license you want for a home-purchase inspection.
How to verify this license
We publish this listing exactly as it appears in Delaware's official licensing records; we do not vouch for the business itself. Before hiring, look up license #2394E3, 2394H directly with the state, confirm it is still active, and ask for a current certificate of insurance.
Source: Delaware DNREC - licensed on-site wastewater treatment and disposal system licensees, last checked 2026-08-16. Verify at the official source.
Are you Robert Wiesner Plumbing? Claim this listing to set your business name and add your website, service area, hours, and photos. It's free.