Septic Tank Inspections & Maintenance
Inspected, serviced and kept compliant.
Keep your septic system working, and the council happy
Most rural homes in Rodney rely on a septic tank or an aerated treatment system. Looked after, you hardly know it’s there. Neglected, it means smells, blocked toilets and soggy, smelly ground over the disposal field.
Aqua Works inspects and services septic systems across Rodney and North Auckland. We check the whole system, give you a report for your records, and fix pumps, alarms, filters and blocked lines.
We don’t empty septic tanks. If your tank needs pumping out, we’ll tell you and can arrange it with a septic tank cleaning company.
We inspect and service septic systems. We don’t pump them out.
Related services
Tap a card to find out more.
Drain unblocking
Blocked lines between the house and the tank, cleared with our jetter.
CCTV drain inspections
A camera look inside the pipes, to find roots, cracks and broken joints.
Drain repairs
Broken or root-damaged pipes dug up and replaced by our drainlayers.
Buying a rural property?
What to check on tank water, bores and septic before you buy or rent out.
Water testing
Septic system close to your bore or tank? Get your water tested.
24/7 emergency plumbing
Septic alarm going off or sewage backing up after hours? Call us.
Inspection or service: what’s the difference?
They’re often done in the same visit, but they’re not the same thing.
Septic tank inspection
A check-up of the whole system. We look at the tank, the lids and the baffles, measure how much sludge and scum has built up, check the outlet filter, and walk the disposal field looking for ponding, smells or soggy ground. You get a report on what’s working, what needs attention, and when the tank will need pumping out. In Auckland, a septic tank needs an inspection at least every three years.
Septic system service
Hands-on maintenance. We clean the outlet filter, test the pumps, floats and high-level alarm, flush the irrigation lines and clear any blockages. Aerated treatment systems also get the blower and the treatment stages checked. In Auckland, aerated and other secondary systems need a service every six months.
Usually, one visit
For a septic tank, we do the inspection and a basic service together: check everything, clean the filter and write up the report. For an aerated system, each six-monthly service includes the checks the council needs.
Pump-outs
When the sludge and scum fill half the tank, it needs pumping out. We don’t empty septic tanks. If your tank needs pumping out, we’ll tell you and can arrange it with a septic tank cleaning company. A pump-out on its own isn’t enough for Auckland Council: it wants a record that the whole system was checked.
Repairs
Failed pumps and alarms, cracked lids, and blocked or broken pipes between the house and the tank. Our plumbers and licensed drainlayers fix them. See drain unblocking.
Close to your water supply?
If your bore or water tank is close to the septic system, or the system has overflowed, get your drinking water tested. See water testing.
Every visit includes
Lids, tank and baffles checked.
Sludge and scum measured.
Outlet filter checked and cleaned.
Pumps, floats and alarm tested.
Disposal field checked.
Photos of anything we find.
A report and a reminder when due.
A copy for your records.
A price for any repair.
Signs your septic system needs attention
- Toilets and drains slow or gurgling.
- Sewage smells around the tank or the field.
- Soggy, very green or smelly ground over the disposal field.
- The high-level alarm going off.
- Sewage backing up into the house.
- Nobody has checked it for more than three years.
Keep these out of your septic system
- Wipes, nappies and sanitary products.
- Fat, oil and food scraps.
- Strong bleach and antibacterial cleaners.
- Medicines, paint and chemicals.
- Roof water and stormwater.
Septic inspection due? Talk to us.
Local Jobs – Local Trust – Local Experts
What we look at
From septic jobs around Rodney.
The tank: lids lifted to check the tank, the baffles and the sludge level.
The pipes: the lines in and out of the tank, where blockages and breaks happen.
Repairs: a broken bend in the sewer line at a home on a septic tank, found and replaced.
Auckland Council’s septic rules
The Auckland Unitary Plan says on-site wastewater systems must be maintained by a suitably qualified service provider:
- Septic tanks and their disposal fields inspected at least every three years.
- Tanks pumped out when sludge and scum fill half the tank.
- Aerated and other secondary systems serviced every six months.
- Outlet filters serviced as the manufacturer recommends.
- A record of each visit kept, ready for the council.
The council is following up owners who haven’t sent in records. You get a copy of our report for your records, and we can send a copy to the council for you.
Source: Auckland Unitary Plan, rule E5.6.1(3), read 2 November 2026.
Buying a home with a septic system?
Ask the seller for the septic records. In Auckland, the owner has to keep a record of every inspection and service, and the council can note a system that isn’t compliant on the property’s LIM. If there are no recent records, book an inspection before you buy. See buying or renting out a rural property.
Mangawhai and Kaiwaka
Kaipara District Council has its own rules for septic systems in residential areas and near the coast and harbours. We can fix pumps, alarms, filters and blocked lines anywhere in our area. Call us to talk about what applies to your property.
How often?
- Septic tank: an inspection at least every three years in Auckland, with the sludge level checked.
- Pump-out: when sludge and scum fill half the tank. For many homes that’s every three to five years.
- Aerated system: a service every six months in Auckland.
- Outlet filter: as often as the manufacturer recommends, and at every visit.
A bigger household or a smaller tank fills faster.
An alarm in Mangawhai Heads
An emergency call-out to a home in Mangawhai Heads: the owners thought the septic filter was blocked. The filter was clear. The real problem was the pump, which had shorted out, so the tank had filled right up to the lid.
That’s why we check the whole system, not just the part that looks broken.
How it works
Four steps to a system that works and a council that’s happy.
1
Book a visit
Tell us what kind of system you have and when it was last checked.
2
We inspect and service
We check the whole system and do the routine maintenance.
3
You get the report
Photos, the sludge level, anything that needs fixing, and the next due date.
4
Records and reminders
A copy for your records, one for the council if you need it, and a reminder when the next one is due.
Local drain specialists
Aqua Works has looked after homes and businesses across Rodney and North Auckland since 2000, from our base in Warkworth. Aqua Works Drainage is our drainage team.
- Licensed plumbers and drainlayers.
- Hydro jetter, small-line jetter, root cutter and drain camera.
- Our own diggers for drain repairs.
- Members of Master Plumbers, and SiteWise Gold.
- 24/7 emergency call-outs.
Areas we cover
Mangawhai to Albany, including Warkworth, Matakana, Snells Beach, Wellsford, Orewa, Silverdale, Whangaparāoa, Millwater, Dairy Flat and Coatesville.
Septic tank FAQs
What’s the difference between a septic inspection and a service?
An inspection is a check-up: we look at the tank, measure the sludge and scum, check the outlet filter and the disposal field, and report what needs doing. A service is the hands-on maintenance: cleaning the filter, testing pumps and alarms, flushing lines and clearing blockages. For most septic tanks we do both in one visit.
How often does my septic tank need an inspection?
In Auckland, a septic tank and its disposal field need an inspection at least every three years, and aerated or other secondary systems need a service every six months. Kaipara District Council has its own rules.
Do you pump out septic tanks?
We don’t empty septic tanks. If your tank needs pumping out, we’ll tell you and can arrange it with a septic tank cleaning company.
How do I know if my tank needs pumping out?
We measure the sludge and scum in the tank. When they fill half the tank, it needs pumping out. For many homes that’s every three to five years, depending on the size of the tank and how many people live there.
Does a pump-out count as my council inspection?
Not in Auckland. The council wants a record that the whole system was checked, not just a pump-out invoice.
Do you send the report to the council?
You get a copy of our report for your records, and we can send a copy to Auckland Council for you. We also remind you when your next inspection or service is due.
What shouldn’t go into a septic system?
Wipes, nappies and sanitary products, fat, oil and food scraps, strong bleach and antibacterial cleaners, medicines, paint and chemicals, and roof water or stormwater.
My septic alarm is going off. What should I do?
Use as little water as you can, and call us. The alarm usually means the pump has stopped or the level is too high. After hours, please call 021 278 7427. Don’t text or email: calling is the only way to get an emergency call-out.
Do you service aerated wastewater systems?
Yes. If your system is still under warranty, check whether the manufacturer needs its own agent to service it.
How much does a septic inspection cost?
We charge a set price for a standard inspection and written report, plus travel. Repairs and parts are extra, and a pump-out is charged by the septic tank cleaning company. Call us on 0800 278 296 for today’s rates.
What areas do you cover?
Rodney and North Auckland, from Mangawhai to Albany, including Warkworth, Matakana, Wellsford, Orewa and the Hibiscus Coast. For bigger jobs further away, give us a call.
Don’t just take our word for it…
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“Fantastic service helping with our blocked septic tank during the holiday period at Christmas!!! Appreciated the promptness in initial response and the communication from there while getting parts and information to resolve both the initial and secondary issues. Highly recommend this team.”
Ruth Scandrett, 2025
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“Excellent service, both emergency assistance and regular service.”
Marie Blatch, 2026
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“We received great service from the Aqua Works team on a large property drainage project. Throughout the entire process, Steve and his team were quick to respond and always very helpful, friendly, and reassuring. … We really appreciate all of this and would highly recommend Aqua Works to anyone needing drainage or plumbing services.”
Sarah Holmes, 2026
Septic inspection due?
Book it with Aqua Works. We’ll check the whole system and remind you when the next one is due.