55 licensed well and septic pros based in Dauphin County. Every license number below is sourced from official Pennsylvania records, with a link to verify it yourself.
Grouped by the county of the address on each business's state license record, which can be a mailing address; it doesn't tell you where the business works. Where the record doesn't name the county of the address, its ZIP code decides (a ZIP that crosses a county line goes to the county holding most of its homes), then its town.
Based in Palmyra, PA · License #003
Based in Middletown, PA · License #04060
Based in Harrisburg, PA · License #04279
Based in Harrisburg, PA · License #03855
Based in Millersburg, PA · License #04027
William A. Burch & Associates · Based in Millersburg, PA · License #03959
Based in Millersburg, PA · License #01213
PA Department of Conservation and Natural Resources · Based in Harrisburg, PA · License #03359
Based in Harrisburg, PA · License #03719
Based in Halifax, PA · License #012
East Hanover Township · Based in Grantville, PA · License #03767
Based in Harrisburg, PA · License #011
Based in Harrisburg, PA · License #03647
Based in Harrisburg, PA · License #03627
Based in Harrisburg, PA · License #02657
Yingst Engineers & Associates, Inc. · Based in Middletown, PA
Based in Harrisburg, PA · License #03767
Based in Millersburg, PA · License #03959
Based in Harrisburg, PA · License #04126
Based in Millersburg, PA · License #008
Based in Harrisburg, PA · License #04278
Based in Harrisburg, PA · License #03446
PA Department of Environmental Protection · Based in Harrisburg, PA · License #03627
Based in Hummelstown, PA · License #04264
Based in Harrisburg, PA · License #02758
William A. Burch & Associates · Based in Millersburg, PA · License #01213
Raudenbush Engineering, Inc. · Based in Middletown, PA · License #02879
Based in Palmyra, PA · License #001
ACT ONE & Associates · Based in Harrisburg, PA · License #02814
Based in Harrisburg, PA · License #009
Based in Berrysburg, PA · License #02723
Walters Environmental Services, Inc. · Based in Grantville, PA
Walters Environmental Services, Inc. · Based in Grantville, PA
Based in Halifax, PA · License #005
Based in Harrisburg, PA · License #03581
Based in Harrisburg, PA · License #03986
Based in Harrisburg, PA · License #004
Based in Millersburg, PA · License #007
Based in Palmyra, PA · License #010
Bruce P. Willman, C.P.S.S. · Based in Hummelstown, PA · License #01315
T & T Services, Inc. · Based in Millersburg, PA · License #04027
PA Department of Environmental Protection · Based in Harrisburg, PA · License #03647
Based in Berrysburg, PA · License #02723
Based in Palmyra, PA · License #03990
Based in Harrisburg, PA · License #03742
Walters Environmental Services, Inc. · Based in Grantville, PA · License #04192
Based in Lykens, PA · License #006
Kerstetter Land Surveying, L.L.C. · Based in Dauphin, PA · License #02701
Based in Harrisburg, PA · License #03956
Based in Harrisburg, PA · License #02814
Final Grade Excavation LLC · Based in Dauphin, PA · License #04218
Walters Environmental Services, Inc. · Based in Grantville, PA
GroundRoster aggregates official state licensing rosters for water-well and septic (onsite wastewater) professionals into one searchable directory, refreshed regularly.
Before you sign anything: confirm the license number on this page is still active with Pennsylvania, ask for proof of insurance, and get at least three written quotes; pricing on this work varies widely by site conditions.
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