CSM Contracting LLC

License details

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

What this license covers

• Installation / repair: licensed to build and install septic tanks and drainfields, and to repair or replace failed ones.
• Service: licensed to operate and service advanced treatment systems on an ongoing contract.

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 #100314125, OH5976954 directly with the agency that issued it, confirm it is still active, and ask for a current certificate of insurance.

Source: Ohio Department of Health - Sewage Treatment System Bond Lists, last checked 2026-08-17. Look it up at the issuing agency.