TDD Trenchless Technology Specialists There are a number of different trenchless pipe installation and rehabilitation methods available to meet individual and specific requirements, these are detailed throughout this website. Our team possess a wealth of experience and knowledge in this specialist field. Please contact us if you require any additional information. Trenchless pipe installation is the modern day alternative to the traditional open cut method. The trenchless process has a positive impact on the environment by greatly reducing landfill waste and the requirement for newly quarried materials. This technique allows minimal disruption to the general public, residents, local business and usual surface operations may continue uninterrupted. Due to the absence of trenches, open cut associated costs and maintenance are eliminated.