What to Look for When Hiring a Drainage Specialist in NZ
- Licensed drainlayer for sewer connections
- Hydraulic design with grade calculations
- Council compliance for stormwater discharge
- CCTV drain inspection capability
- Maintenance access point installation
Red Flags to Watch Out For
- No hydraulic design
- No council compliance check
- Can't do CCTV inspection
- No maintenance access points
Typical Costs Across NZ
French drain: $80β$150/m installed. Soakpit: $1,500β$4,000. Full site drainage: $5,000β$25,000+
Costs vary significantly by city β Auckland and Queenstown are typically the most expensive, while Invercargill and Dunedin are among the most affordable.
Licensing Requirements
Licensed drainlayer required for sewer connections. Resource consent for stormwater discharge. Check the register β