Stormwater Tank & Sump Cleaning

When the Northland rain comes down hard, your stormwater system needs to be clear and ready. Northland Septic Tank Services cleans out stormwater tanks, sumps, catchpits, soakholes and just about any other stormwater system for homes and businesses across Kerikeri, the Bay of Islands and the mid-north.

Why stormwater systems need cleaning

Stormwater carries more than rain. Silt, leaves, gravel and rubbish wash off roofs, driveways and car parks and settle in your tanks and sumps. Over time that build-up:

  • reduces how much water your system can hold
  • causes blockages and overflows in heavy rain
  • can lead to flooding around buildings and driveways
  • lets sediment and pollutants wash out into local streams and harbours

Cleaning out your stormwater system regularly keeps it working when you need it most and helps protect Northland's waterways.

What we do

Using our vacuum truck, we suck out the silt, sludge, debris and water from your tank, sump, catchpit or soakhole and take it away for proper disposal.

Our trucks need to get within 45 metres of the tank or sump. If access is tricky, or there are steps, soft ground or locked gates, tell us when you book. See our important information page.

Who we help

  • homeowners and lifestyle blocks with stormwater tanks or sumps
  • commercial sites and car parks
  • property managers and body corporates

For ongoing peace of mind, ask about programmed regular servicing, so your stormwater system gets cleaned before the wet season, not after it overflows.

Stormwater cleaning FAQs

How often should a stormwater tank or sump be cleaned? It depends on the size of the system and how much silt and debris reaches it. Sites with lots of trees, gravel or traffic usually need more frequent cleaning. Call us and we can talk through how often yours might need doing.

Can you come out during a storm or flooding? We run a 24/7 service. Call 0800 763 559 and we'll get there as soon as we safely can.

Is stormwater cleaning the same as septic tank cleaning? No. Stormwater systems handle rainwater, while septic tanks handle household wastewater. We do both. See septic tank cleaning and treatment plant pump-outs.

Helpful reading

Areas we service

Kerikeri, Kaikohe, Moerewa, Kawakawa, Russell, Hokianga, Okaihau, Bay of Islands, Kaeo, Ōhaeawai, Paihia and Horeke.

Book a stormwater clean: call 0800 SMELLY (0800 763 559), Stu on 021 669 452, or contact us.