Experience Below The Ground
Experience and Trust
Trusted expertise built over time. From cleaning to inspections, offering complete pipeline solutions.
Safety and Compliance
Safety and environmental responsibility underpin every project we deliver.
Technical Capability
Advanced inspection technology combined with comprehensive cleaning and maintenance.
Precision drain inspection for New Zealand's critical infrastructure
Experience Below the Surface.
DIS delivers CCTV drain inspection, pipe condition assessment and structured condition reporting — backed by new machinery, upskilled crews and the trusted Southeys Group name.
- CCTV Drain Inspection
- Pipe Condition Assessment
- Structured Condition Reporting
- Drain Jetting & Cleaning
- Vacuum Loading Support
- Locating & Mapping
A calm, confident way to see what's really happening underground — delivered by people who genuinely care about getting it right for you.
DIS brings Southeys Group's decades of civil experience to specialised drain and pipe inspection. Precise, non-destructive, and always approachable — because looking after your infrastructure should feel effortless.
Specialised drain & pipe inspection services
Precise, non-destructive assessment of underground assets — delivered with the equipment and experience of the wider Southeys fleet.
Emergency Response — 24/7 Callout
Core Inspection & Reporting
- CCTV inspection for pipe maintenance
- Pre-inspection reporting
- Post-inspection reporting
- Pipeline condition reports
- Inclination reports
- Reinstatement reports
- As-builts
- Tank inspections
- Power duct inspections
- Service location support
- Pre-inspection dewatering
Cleaning & Maintenance
- Pipe flushing 80 mm – 2000 mm diameter
- Pipe cleaning and unblocking
- Root cutting
- Culvert cleaning
- Grease trap cleaning and waste removal
- Pigging
- Drain Unblocking
Inspection Capability
- Pipelines from 80 mm to 2000 mm diameter
- Up to 300 metres reach (drive cameras)
- Up to 100 metres reach (push cameras)
Liquid Waste Management & Hydro Excavation
- Hydro excavation
- Dewatering services
- Septic waste removal
- Waste water disposal
- High volume waste removal
- Emergency spill response
- Tank cleaning
- Maintenance contracts (short- and long-term project support)
Engineering judgement behind every report
Our operators don't just capture footage — they interpret it. That's the difference between a video file and a report you can act on.
Trained CCTV Operators
Upskilled Southeys crews operating new inspection machinery — competent, safety-first and obliging on every site.
Recognised Condition Coding
Defect coding and condition grading aligned to New Zealand's 4th Edition Gravity Pipe Inspection Manual.
Engineering Judgement
Findings interpreted with practical civil experience so recommendations are realistic and buildable.
Non-Destructive Methods
Inspection-first approach that protects live services and keeps sites safe and productive.
From request to report in four steps
A clear, repeatable process that keeps your project moving and your asset records defensible.
Request & schedule
Log a job in the portal or give us a call. We match the right crew and equipment to your site.
On-site CCTV survey
Crawler or push-rod cameras capture high-resolution footage of every metre of line.
Condition coding
Defects are coded and graded to the 4th Edition Gravity Pipe Inspection Manual.
Structured report
You receive a clear report with imagery, defect logs and prioritised recommendations.
Doing the right thing, on every site
Our values stem from family ownership — "because it's the right thing to do." We recover sands, aggregates and water for reuse, choose non-destructive methods that protect live services, and leave sites safer than we found them.
Safety-first
First-rate health & safety programmes and inspection-first methods that protect live services and crews.
Sustainable
Recovering sands, aggregates and water for reuse — improving your project's sustainability performance.
Responsive
Known for a can-do attitude — we shift things around so main contractors get the help they need.
Community-minded
We do right by the environment and the communities we work in — our family values on every job.
Latest news & case studies
Ready to see what's really happening underground?
Book a CCTV drain inspection or talk to our team about your project. Nationwide coverage, fast turnaround, reporting you can build decisions on.