Home › Maryland › Washington County › Smithsburg › Douglas L. Monninger

Douglas L. MonningerLicensed

Licensed septic contractor based in Smithsburg, Washington County, MD

License details

Company	C.R. Semler, Inc
License number	01081
License type	Registered On-Site Wastewater (Septic) Professional
License status	Current, MD State Board of On-Site Wastewater Professionals
License expires	December 31, 2026
Based in	Smithsburg, Washington County, Maryland 21783

"Based in" is the city and county of the address on the business's license record.

How to verify this license

We publish the license details exactly as they appear in the public licensing records of the agency that issued the license; we do not vouch for the business itself. Before hiring, look up license #01081 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Source: MD State Board of On-Site Wastewater Professionals - registered individuals, last checked 2026-08-17. Look it up at the issuing agency.

Compare licensed contractors based in Smithsburg

All listings based in Smithsburg 22

Other septic contractors based in Smithsburg

Janell K. FlookLicensed

Septic

C.R. Semler, Inc · Based in Smithsburg, MD · License #01073

Tim E. StotelmyerLicensed

Septic

Stotelmyer Plumbing · Based in Smithsburg, MD · License #00950

Taylor S. WhittedLicensed

Septic

J.R. Services LLC · Based in Smithsburg, MD · License #01009

Robert W. FlookLicensed

Septic

C.R. Semler, Inc · Based in Smithsburg, MD · License #01074

Kenneth P. HovisLicensed

Septic

C.R. Semler, Inc · Based in Smithsburg, MD · License #01077

Benjamin GsellLicensed

Septic

J.R. Services, LLC · Based in Smithsburg, MD · License #02122

Other licensed septic contractors based in Washington County

William W. TolleyLicensed

Septic

Tolley Enterprises, Inc. · Based in Boonsboro, MD · License #00496

Kyle L. HottLicensed

Septic

Affordable Septic & Excavating LLC · Based in Hagerstown, MD · License #00992

Drexel A. BidleLicensed

Septic

Bidle Brothers, Inc. · Based in Keedysville, MD · License #00454

Tyler S. HorstLicensed

Septic

J.A. Horst & Sons · Based in Clear Spring, MD · License #02269

Steven T. MessickLicensed

Septic

Gerald Taylor Co., Inc. · Based in Williamsport, MD · License #02553

See every listing based in Washington County or in Smithsburg.