GroundRosterLicensed Well and Septic Contractors: Baltimore County, MD
115 licensed well and septic pros based in Baltimore 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 Baltimore County
All 25 towns named on the license records based here, with the number of listings in each, most first.
License classes on the Baltimore 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 115.
| License class | Trade | Listings |
|---|---|---|
| Registered On-Site Wastewater (Septic) Professional | Septic | 113 |
| Well Drilling Company | Well | 2 |
Septic Contractors based in Baltimore County (113)
David P. VincentLicensed
Arvell ColeLicensed
Kristy M. BischoffLicensed
Richard C. JohnsonLicensed
Jonathan J. BlevinsLicensed
Kenneth JenkinsLicensed
John W. CossentinoLicensed
Michael K. MaholchicLicensed
Oscar C. GomezLicensed
Charles A. SegermanLicensed
Thomas G. Harris, Sr.Licensed
Bruce E. DoakLicensed
Juan LopezLicensed
Glenroy DoreLicensed
Joseph C. PassapaeLicensed
Mitchel RuhkampLicensed
Mark TestermanLicensed
Eric R. McWilliamsLicensed
Darien JacksonLicensed
Miguel A. AlfaroLicensed
Ruddy R. SedaLicensed
Jason A. JamisonLicensed
Justin R. OttensmeyerLicensed
Mitchell R. CarrickLicensed
Wayne D. RochkindLicensed
Larry FooteLicensed
Thomas A. EarpLicensed
Kevin M. OasterLicensed
Mike SteeleLicensed
Reid (Drew) A. HendersonLicensed
Kevin R. BielatLicensed
Salvatore C. CrupiLicensed
Gregory ChapmanLicensed
Gregory J. Billing SrLicensed
Robert E. Appleby, IIILicensed
Grant R. FradyLicensed
Joseph P. LinsenmeyerLicensed
Aaron M. DorseyLicensed
Gary CooperLicensed
James (Rob) R. PowellLicensed
Cole J. RaffertyLicensed
Dwayne M. HarrisLicensed
Christian D. Arrue CisnerosLicensed
Jose N. PovedaLicensed
Daniel E. NazarioLicensed
Johnnie Wade Sr.Licensed
Anthony W. AndersonLicensed
Mahindra (Wayne) W. GayadeenLicensed
Kenneth J. WellsLicensed
Matthew J. GeckleLicensed
William (Andy) A. Lipinski IILicensed
Travis W. BlevinsLicensed
Harry (Michael) M. SampleLicensed
Steven A. KelleyLicensed
Tyler WertzLicensed
Robert (Troy) T. SlevinLicensed
Carlos MartinezLicensed
Richard L. Fishpaugh, JrLicensed
Christopher T. EbyLicensed
Ronald SampleLicensed
Lloyd WigginsLicensed
Jay T. YoungLicensed
Tyler R. FrankLicensed
Harrison FergusonLicensed
Braulio RomeroLicensed
Abraham G. RiosLicensed
Richard C. BurtonLicensed
Christopher M. AyresLicensed
Patrick C. Richardson, JrLicensed
Brian RobinsonLicensed
Wade R. BlevinsLicensed
Frank M. TaciakLicensed
Seth K. EnsorLicensed
William J. HouseLicensed
Megan R. FrankLicensed
Eric K. GarrettLicensed
Lawrence E. MockLicensed
Jason MooneyLicensed
Shawn YoltonLicensed
Kenneth (Scott) S. HickmanLicensed
Carl H. StillwellLicensed
George H. NitzelLicensed
Richard A. ShaneybrookLicensed
Travis M. ErbLicensed
Christopher W. MilanLicensed
William G. MalkinLicensed
Nicholas A. BobesLicensed
Samuel C. HuntLicensed
Stephanie BlevinsLicensed
Connor P. SandiferLicensed
Kyle GrafLicensed
Tyler A. ArmstrongLicensed
Brian R. DietzLicensed
Keith PerryLicensed
Brian M. Bates, Jr.Licensed
Todd A. SpriggLicensed
Gregory (Ben) AndrewsLicensed
Justin M. SappLicensed
Edward L. LinsenmeyerLicensed
Frederick C. Ruff, IVLicensed
Thomas A. Cossentino, Jr.Licensed
Stephen A. WarfieldLicensed
Dennis S. LagunaLicensed
Frank F. WhiteLicensed
Nicholas RiehlLicensed
Ronald EllaLicensed
Michael P. McKennyLicensed
Brian K. CollinsLicensed
Michael F. HumerLicensed
Matthew SichelLicensed
Timothy M. Kuhn, SrLicensed
Blaine LinkousLicensed
John J. Stallings IIILicensed
Water Well Contractors based in Baltimore County (2)
Columbia Technolgies, LLCLicensed
Summit Site ServicesLicensed
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 Baltimore County, with national cost ranges
Listings based in Baltimore County whose license class covers each service. Cost ranges are national; each links its cost guide.
| Service | Based in Baltimore 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 Baltimore 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 Baltimore 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?