Nortex septic design and aerobic septic system design utilizes the latest technology for Septic Tanks. Our licensed and insured staff has years of experience in DFW to design and deliver superior results and service. We cater to new home builders and property owners in Collin, Grayson, Denton, Tarrant, Dallas, Rockwall, Fannin, & Hunt counties. Our service and product give you the best overall product for all your septic needs.