T.D. Williamson, Inc., founded in 1920, has a rich tradition of providing innovative products and the most reliable services available to our customers globally, whether the needs are: \r\n· Hot Tapping and Plugging of Under-Pressure Piping Systems\r\n· Pigging Products \r\n· Pipeline Cleaning Services \r\n· KALIPER Geometry Inspection \r\n· Gas Leak Detection Products \r\n \r\nThis tradition of quality products and services did not just happen, but was earned by dedicated employees who remain the innovators and knowledge providers to this industry.