GroundRosterLicensed Well and Septic Contractors: Howard County, MD
47 licensed well and septic pros based in Howard County. Every license number below is sourced from public licensing records, with a link to look it up yourself.
Grouped by the county of the address on each license record, which can be a mailing address, so it doesn't tell you where the business works. When the record names no county, we place it by ZIP code, then town.
Checked against MD State Board of On-Site Wastewater Professionals - registered individuals and NJDEP DataMiner - Well Drilling Companies. Roster copy last refreshed 2026-08-17.
Towns in Howard County
All 18 towns named on the license records based here, with the number of listings in each, most first.
License classes on the Howard County records
Each class as the issuing agency prints it on the license record. A record that names more than one class counts once under each, so the rows can add up to more than 47.
| License class | Trade | Listings |
|---|---|---|
| Registered On-Site Wastewater (Septic) Professional | Septic | 45 |
| Well Drilling Company | Well | 2 |
Septic Contractors based in Howard County (45)
Michael P. EhrhardtLicensed
Jeff G. AllenLicensed
John D. ShirleyLicensed
Basilio MartinezLicensed
Jignesh ShethLicensed
Marc D. HerethLicensed
Edgar W. ZeppLicensed
Renato SanchezLicensed
Timothy (Tim) J. RollmanLicensed
Steven M. ChurchwellLicensed
nJesus E. Sanchez-MondragoLicensed
Paul G. CavanaughLicensed
Paul M. SillLicensed
Richard L. SobbottLicensed
Oscar A. AlfaroLicensed
Justin IngramLicensed
Antonio Martinez GarciaLicensed
Casey P. SpearesLicensed
John M. CarneyLicensed
Robert H. VogelLicensed
Marcos Torres-RodriguezLicensed
Michael SkipperLicensed
Morgan DittonLicensed
Edward W. WagnerLicensed
Benjamin WalgeLicensed
Issa M. HaddadLicensed
Miguel A. BatresLicensed
Eric T. DennisLicensed
John A. Bounds IIILicensed
James C. BiddiyLicensed
Joe MarshallLicensed
Dwayne E. HarrisLicensed
Geoffrey L. CinieroLicensed
Paul H. Dymond, JrLicensed
William T. Cumberland IIILicensed
Mohammad N. RoshanLicensed
Tyrell (Ben) R. BrownLicensed
Matthew R. GilbertLicensed
Michael S. LewisLicensed
William IngramLicensed
Jose HerreraLicensed
James A. RuffLicensed
Michael A. NortonLicensed
Edward HeilLicensed
Garland L. Brian, SrLicensed
Water Well Contractors based in Howard County (2)
Earth Matters INCLicensed
Allied Well DrillingLicensed
Own one of these businesses? Find your listing and claim it.
Looking for a specific contractor? Search by name, business name, or license number.
Services in Howard County, with national cost ranges
Listings based in Howard County whose license class covers each service. Cost ranges are national; each links its cost guide.
| Service | Based in Howard County | National cost |
|---|---|---|
| Septic Tank Pumping | 0 | $250 to $600 |
| Septic System Installation | 0 | $3,600 to $12,500 |
| Septic Inspection | 0 | $150 to $900 |
| Septic System Design | 0 | Varies by site |
| Perc Test and Soil Evaluation | 0 | $250 to $1,000 |
| Well Drilling | 2 | $5,500 to $35,000 |
| Well Pump Repair | 0 | $1,000 to $2,500 |
None of the listings based in Howard County hold a license class we can match to septic tank pumping, septic system installation, septic inspection, septic system design, perc test and soil evaluation or well pump repair. Ask any contractor whether they do this work, or try a nearby city.
Hiring a well and septic professional in Howard County
Before you sign anything: confirm the license on this page is still active with the agency that issued it, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.
Do I need a permit for well or septic work in Maryland?