Mullen Septic & Drainfield Service L.L.C.

State-Certified Septic Contractor — FL DEP #SA0121794 (Authorized business)Mullen Septic & Drainfield Service L.L.C. is a state-authorized Florida septic tank contracting business, holding Florida DEP credential number SA0121794. Based in Largo, Pinellas County, the company provides septic tank installation, pumping, repair, and maintenance for on-site sewage systems. Its active credential, valid through March 31, 2027, is backed by a linked Florida contractor registration (SR0121703). Property owners can verify this licensing in Florida’s state septic database, ensuring compliance with state regulations for new systems, inspections, and routine service.

Compare all 5 state-certified septic contractors in Largo, each matched to a Florida DEP septic registration.