Whanganui's older inner-city housing has original clay drains that are increasingly failing. The river proximity also means stormwater management requires careful attention to prevent flooding. Here's what drainlayers charge in Whanganui in 2026.
Whanganui Drainlayer Rates 2026
| Service | Whanganui typical cost |
|---|---|
| Call-out fee | $64–$140 |
| Hourly rate | $84–$152/hr |
| Drain camera inspection | $230–$470 |
| High-pressure water jetting | $185–$460 |
| Root cutting / clearing | $270–$660 |
| Drain repair (per metre) | $370–$860/m |
| Drain replacement (open cut, per metre) | $470–$1,100/m |
| Sewer lateral connection (new) | $2,100–$6,200 |
| Stormwater connection (new) | $1,800–$5,500 |
| Pre-purchase drainage inspection | $360–$820 |
All prices GST inclusive. Broadly regional.
Whanganui Drainage Situation
Whanganui's older inner-city housing has original clay drains that are increasingly failing. The river proximity also means stormwater management requires careful attention to prevent flooding.
PGDB-Licensed Drainlayers
All work connecting to the public sewer or stormwater network must be done by a PGDB-registered drainlayer. Verify at pgdb.co.nz.
Slow drains, gurgling pipes, wet patches in the lawn, or sewage smells are all signs of drain problems. A camera inspection ($230–$470) diagnoses the issue before digging begins.
Find Whanganui drainlayers: Drainlayers Whanganui | Post a Job Free
Related: Blocked Drain Cost NZ | Plumbers Whanganui