Mark D. Johnson

State-Certified Septic Contractor — FL DEP #SR0021405 (Registered)Mark D. Johnson is a Florida-registered septic contractor (DEP credential number SR0021405, active through September 30, 2026) serving Orlando and surrounding areas. This credential, verifiable in Florida’s state septic database, authorizes the contractor to perform installation, pumping, repair, and maintenance of on-site sewage and septic systems. Homeowners and property owners seeking a licensed professional for new septic or drainfield installation, tank pumping, inspections, or repairs can verify this active registration directly with the Florida Department of Environmental Protection.

Compare all 30 state-certified septic contractors in Orlando, each matched to a Florida DEP septic registration.