C. R. Semler Inc

11664 Mapleville Rd. Smithsburg Md 21783


About Us

C.R. Semler Inc has been a locally family owned business servicing the tri state area for the past 60 years.

C.R. Semler Inc provides professional septic services from site planning,  excavation, installation, tank pumping  and providing repair service to  your system.   Your septic system Is the wastewater treatment facility designed for your household or business.  We manufacture our own tanks on site exceeding industry quality standards resulting in the best performance for our customers’. 

Our precast concrete septic tanks are  superior in durability and installation.  They will serve your wastewater systems with a proven performance and longevity.  

Products / Services


  • Pump Chambers
  • 1,000 gallon tanks
  • 15,00 gallon tanks
  • 2,000 gallon tanks
  • Risers
  • Distribution boxes
  • Tank replacement lids


We provide full septic services for residential and commercial systems from planning, design to installation.

We also provide advance systems to include;

  • Norweco
  • American Drip
  • Design new home system
  • Septic installation
  • Inspections
  • Sand Mounds
  • Drip Systems
  • LPD systems
  • Repairs
  • Pumping services


We provide years of experience in sitework to maintain long term relationships with local builders.

  • Residential
  • Commercial
  • Site prep
  • Excavating
  • Driveway
  • Water – Sewer

Product Design & Dimensions

Septic Tanks

Product Partners


Thanks for reviewing our site, if you have any questions you can contact us by email or telephone

C. R. Semler Inc

11664 Mapleville Rd Smithsburg, Md 21783

Office: 301-824-2780 301-416-0414

Email: [email protected]