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Frequently asked questions

Everything you need to know about working with DIS.

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A quick reference to the things clients ask us most.

CCTV drain inspection uses a specialised camera — either a self-propelled crawler or a flexible push-rod system — to travel through a pipe and record high-resolution video. It lets us assess the internal condition of a drain or pipe without any excavation.

Our condition assessments are coded and reported in line with the 4th Edition Gravity Pipe Inspection Manual, giving you a consistent, defensible record of structural and service defects.

We operate nationwide, with key bases in Auckland, Tauranga, Rodney and Lower Hutt. Auckland and Wellington are core regions, but we regularly travel for projects across the country.

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