D T Stewart & Sons is a provider of products and services such as sewage treatment consultancy services,sewage removal services,sewage treatment services,sewage disposal services,cesspool or septic tank emptying services,sewer cleaning services,sewage services,septic tanks - works,treatment services of cesspools,treatment services of septic tanks,septic-tank services,cesspool or septic-tank emptying services,sewer-cleaning services,treatment services of cesspools and septic tanks,sludge-removal services,sludge services,sewer survey and sewage treatment consultancy services.