Licensed Septic Companies in Hagerstown, MD
8 septic companies serve Hagerstown, Maryland, and 8 of them hold a Maryland septic license or certification matched to the Maryland Department of the Environment list (data as of October 2026).
Septic services in Hagerstown
Guides: Septic system installation · Aerobic septic systems · Installation cost · Pumping cost
8 septic companies in Hagerstown
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A C & T
Po Box 4217, Hagerstown, MD · Washington County
- Licensed: Maryland MDE Certified BAT (Best Available Technology) Septic Installer (Maryland Department of the Environment, verify)
Per state license: Installation · Aerobic systems
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Ac & T Co Inc
P.O. Box 4217, Hagerstown, MD · Washington County
- Licensed: Maryland MDE Certified BAT (Best Available Technology) Septic Installer (Maryland Department of the Environment, verify)
Per state license: Installation · Aerobic systems
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Hoffman Excavating And Hauling
13205 Dusty Lane, Hagerstown, MD · Washington County
- Licensed: Maryland MDE Certified BAT (Best Available Technology) Septic Installer (Maryland Department of the Environment, verify)
Per state license: Installation · Aerobic systems
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Horizon Outdoor Services, Inc
16230 Mount Tabor Rd, Hagerstown, MD · Washington County
- Licensed: Maryland MDE Certified BAT (Best Available Technology) Septic Installer (Maryland Department of the Environment, verify)
Per state license: Installation · Aerobic systems
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Keplinger Excavating
10218 Sharpsburg Pike, Hagerstown, MD 21713 · Washington County
- Licensed: Maryland MDE Certified BAT (Best Available Technology) Septic Installer (Maryland Department of the Environment, verify)
Per state license: Installation · Aerobic systems
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Oliver Homes, Inc
19733 Leitersburg Pike, Hagerstown, MD 21742 · Washington County
- Licensed: Maryland MDE Certified BAT (Best Available Technology) Septic Installer (Maryland Department of the Environment, verify)
Per state license: Installation · Aerobic systems
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Rock Bottom Excavating LLC
20931 Mt. Aetna Rd, Hagerstown, MD 21742 · Washington County
- Licensed: Maryland MDE Certified BAT (Best Available Technology) Septic Installer (Maryland Department of the Environment, verify)
Per state license: Installation · Aerobic systems
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Valentine Excavating
110 Western Md Parkway, Hagerstown, MD · Washington County
- Licensed: Maryland MDE Certified BAT (Best Available Technology) Septic Installer (Maryland Department of the Environment, verify)
Per state license: Installation · Aerobic systems
No listings match those filters.
Septic licensing in Maryland
Maryland certifies installers of nitrogen-reducing BAT septic units; installers also need the unit maker's certification, and some counties require a local license. The Maryland Department of the Environment issues these credentials: BAT (Best Available Technology) certified installer; County septic installer licenses in some counties.
Permits for new systems, replacements and most repairs are issued locally. Ask the contractor which office handles Hagerstown and whether the permit fee is in their quote.
Maryland septic licensing: agencies, license types and how to check a license →
Septic companies in Hagerstown: common questions
How many licensed septic companies are in Hagerstown, MD?
8 septic companies serve Hagerstown, Maryland, and 8 of them hold a Maryland septic license or certification matched to the Maryland Department of the Environment list (data as of October 2026). Each license badge on this page names the agency and links to its lookup so you can confirm it.
Who licenses septic contractors in Maryland?
Maryland certifies installers of nitrogen-reducing BAT septic units; installers also need the unit maker's certification, and some counties require a local license. The licensing body is the Maryland Department of the Environment.
Which companies install septic systems in Hagerstown?
8 listings in Hagerstown install septic systems. New systems and replacements need a permit, so ask each installer to handle the permit and to show their Maryland license.
How do I check a septic contractor's license in Maryland?
Use the Maryland Department of the Environment's lookup (https://mde.maryland.gov/programs/water/BayRestorationFund/OnsiteDisposalSystems/Pages/index.aspx) and search the contractor's name or license number. Our guide to checking a septic license walks through it.