4045 Federal Hill Rd, Jarrettsville, MD 21084 · Harford County
Is Earl E Preston Jr Inc and Whiteford Septic Service licensed?
Earl E Preston Jr Inc and Whiteford Septic Service appears on a Maryland septic license or certification list. The Septic Guide matched these credentials to the issuing agency's published list as of October 2026; confirm the current status with the agency before you hire.
| Credential | Number | Issued by | Verify |
|---|---|---|---|
| Maryland MDE Certified BAT (Best Available Technology) Septic Installer | — | Maryland Department of the Environment | Agency lookup |
A matched credential shows the holder was on the agency's list when we checked. It does not by itself authorize every kind of septic work: an installer license, a pumper license and an inspector certification are different credentials.
What septic services does Earl E Preston Jr Inc and Whiteford Septic Service offer?
Found on Earl E Preston Jr Inc and Whiteford Septic Service's website: Septic tank pumping, Septic system installation, Risers and lids, Perc testing and site evaluation.
Implied by its state license: Aerobic septic systems.
Ask Earl E Preston Jr Inc and Whiteford Septic Service to confirm it handles your specific job and service area. Guides: Septic tank pumping · Septic system installation · Aerobic septic systems.
Before you hire Earl E Preston Jr Inc and Whiteford Septic Service
- Check the license on the agency lookup above and ask which person holds it.
- Ask who pulls the permit and whether the fee is in the quote.
- Ask for proof of liability insurance sent by the insurer.
- Get the scope and price in writing. How to check a septic license.
Is this your business? Correct or update this listing. Listing data: state license lists and public business information, as of October 2026. Not an endorsement.