← All Hunterdon County septic contractors
Castle Septic Service
Milford, Hunterdon County · septic contractor serving Hunterdon County
… Credential check pending · NJDEP #32422 (stated on company site and BBB)
A pick in waiting. Owner Bob Osborne, Milford, since 2007, full spectrum from pumping to complete system replacement with excavation in-house. Reviewers repeatedly describe honest repair-versus-replace advice. First call the moment the NJDEP pull clears. Nothing gets our stamp on secondhand data, so the
endorsement waits for the registry pull.
The record
Public facts with sources, checked on the date shown. Nothing here can be bought.| Registration / NJDEP | NJDEP #32422 (stated on company site and BBB) — run a check yourself |
| Status | … Pending our direct pull Septic installer credentials run through NJDEP, a separate registry from the contractor board — our direct pull is pending |
| Based in | Milford, NJ (inside the county) |
| Services | Septic pumping · Inspections and time-of-sale certifications · System design and installation ($15-40k jobs) · Repairs · Excavation (in-house) · 24-hour emergency |
| BBB | A+ (as of July 2026) |
| Reviews, as reported | 4.9 rating across 73 reviews on Birdeye — scores are what the platforms report; we have not audited them |
| Website | castleseptic.com |
Pricing a septic contractor job?
Check the Hunterdon County planning range for your exact job before you take any quote. Free, sourced, and the number comes before any form asks your name.
Is this your business?
This is a free listing built from public records. If a fact is wrong, email corrections@hunterdonscoop.com with the document and we correct it within 48 hours. Facts, rankings, and picks are never for sale.
One license checked every Thursday.
The Hunterdon Scoop is the free Thursday email for Hunterdon County. This page is part of its homework.