Commercial Water Treatment Servicing
For businesses on their own water supply.
Tailored to your site, with records to prove it.
Your water, looked after
If your business supplies drinking water to staff, customers, students or guests, the treatment has to work every day. It also has to be maintained, tested and recorded, so you can show your water is safe.
We look after commercial water treatment across Rodney and North Auckland, from Mangawhai to Albany. Every site is different, so we tailor the service to your equipment and to how much your own staff want to do.
One call, and we take care of it.
Who we look after
Tap a card to see what the rules mean for your type of site.
Commercial buildings
Workshops, offices and shared buildings on their own rainwater or bore supply.
Rural schools and ECE centres
Visits every six months, with the caretaker doing the day-to-day checks.
Cafés and restaurants
Safe water for food and drink, tested to the MPI limits.
Vineyards and wineries
Cellar doors and restaurants on rural water, usually with a validated UV system.
Lodges and holiday stays
Motels, lodges and holiday homes, where guests expect safe water from every tap.
Service stations and businesses
Any business that supplies its own drinking water to staff or the public.
Three levels of service
We build a service plan around your equipment and how much your own staff want to do. Most sites fit one of these three.
Fully managed
We look after everything, so your staff don’t have to. On our busiest sites that means:
- Every day: a remote check of the plant room on camera.
- Every month: a site visit to inspect the tanks, pumps, filters and gauges, flush the tank valves and record the readings.
- Every 3 months: an E. coli test at an accredited laboratory.
- Every 6 months: new filter cartridges, clean quartz sleeves, another water test and a gutter clean.
- Every 12 months: the full annual service. A new UV lamp, a full clean, the lines sterilised, the backflow devices tested and a full water test. We also water blast the roof, wash down the gutters, and drain and clean the water tanks.
Shared with your caretaker
Many schools and cafés have a caretaker who is happy to do the daily and monthly checks. We show them what to look for, then visit every 6 months for the filters and quartz sleeves, and every 12 months for the full annual service.
Annual service
Some sites change their own basic filters and just want us for the main service. We visit every 12 months for the full annual service, and you call us if anything changes in between.
What we look after
UV systems and quartz sleeves.
Cartridge and media filters.
Water pumps and pressure.
Water tanks and tank levels.
Roofs, gutters and rain heads.
Tank flush valves.
Backflow prevention devices.
Water testing and results.
Records for your water safety plan.
Every visit includes
- A check of the whole system for leaks, wear and alarms.
- The UV dose and lamp hours read and recorded.
- New filters, sleeves or lamps where they’re due.
- A written record of what we did and what we found.
What your staff can do
- Check the UV screen each day to make sure it’s treating.
- Keep an eye on the tank levels and the water pressure.
- Flush the pre-filters and tank valves, once we’ve shown you how.
- Call us straight away if an alarm sounds or the water changes.
One yearly price. No lock-in contract.
Local Jobs – Local Trust – Local Experts
Commercial sites we look after
A few of the systems on our service rounds.
A tidy plant room: a validated UV system and two large cartridge filters on one wall. We service the lot in a single visit.
Every visit: we read the UV dose. The rules ask for at least 40 mJ/cm², and this Hallett is reading 63.
Alarms: a warning that the water in the UV is getting warm, which usually means no water has been used for a while. We check alarms like this before they become a problem.
One price for the year
We don’t lock you into a long contract. We quote one yearly price that covers the monthly, six-monthly and annual work, so you know your costs up front.
Once you’re happy, it simply rolls over each year. There’s nothing big to sign: we keep your business by doing a good job.
What the rules ask for
- Register your supply. Businesses and community sites that supply drinking water must register with Taumata Arowai. Existing supplies have until November 2028. See drinking water suppliers.
- Keep it maintained. Under the Acceptable Solution for self-supplied buildings, treatment must be maintained to the manufacturer’s instructions, with records kept for at least three years.
- Test on schedule. Supplies of 26 to 100 people on the Quality Assurance Rules test for E. coli and total coliforms every three months.
- Use validated UV. Under the Acceptable Solution, schools, cafés and other sites open to the public need a validated UV system with a dose of at least 40 mJ/cm².
- Test your backflow devices. Testable backflow devices need regular testing. We test yours every year.
- Food businesses. MPI requires water used for food to be safe to drink, with E. coli tested at an accredited laboratory. See cafés and restaurants.
Which rules apply depends on your supply. We’ll explain them in plain English at the site visit. See NZ drinking water regulations.
Compliance, done for you
The rules can be confusing, so we take care of the whole process. We can register your supply with Taumata Arowai, write your water safety plan and act as your water operator.
Every visit and every test result is recorded, so you have what you need for your annual report or an MPI verification. See our water safety plan service.
A fully managed site in Matakana
A group of commercial workshops in Matakana runs on its own rainwater. In December 2024 we registered the supply with Taumata Arowai, and by March 2025 we’d written its drinking water safety plan.
Since then we’ve looked after the whole system. We check the plant room every day, visit every month, test for E. coli every three months and change 28 filter cartridges every six months. Spare parts for the validated UV system are kept on site, so a fault can be fixed quickly.
How it works
Four steps to a service plan that fits your site.
1
Free site visit
We look at your equipment, your water and the rules that apply to you.
2
Your service plan
We agree what we do and what your staff do, with one yearly price.
3
We look after it
Visits, tests and repairs happen on schedule, without you having to remember.
4
Records you can show
Every visit and test result is recorded and ready when you need it.
A local service team
Our own team services commercial water treatment across Rodney and North Auckland, from Mangawhai to Albany, from our base in Warkworth.
- Most makes of UV system, including validated Hallett and VIQUA units.
- A service plan that fits your site and your budget.
- A record of every visit and every test.
- Clear quotes before any repairs or upgrades.
Repairs and call-outs
If something breaks between visits, call us. For key equipment we can keep spare parts on site, and our emergency call-out team can get your water running again.
Commercial water treatment servicing FAQs
What does a commercial water treatment service include?
It depends on your equipment and the level of service you choose. A full annual service usually includes a new UV lamp, clean quartz sleeves, new filter cartridges, a check of the pumps, tanks and pressure, backflow testing and a water test, all recorded.
How often does a commercial site need servicing?
At least once a year. Most commercial sites need the filters and quartz sleeves done every six months, and our busiest sites have us visit every month.
Do we have to sign a long contract?
No. We quote one yearly price that covers the monthly, six-monthly and annual work. Once you’re happy, it rolls over each year, and there’s no long contract to sign.
How much does commercial servicing cost?
It depends on your equipment and how much we do. We start with a free onsite visit, then give you a written yearly price, so there are no surprises. Call us on 0800 278 296.
Can our caretaker do some of the work?
Yes. Many schools and cafés have a caretaker who does the daily and monthly checks. We show them what to look for, and do the six-monthly and annual work ourselves.
Do you service systems someone else installed?
Yes. We service most makes and models of UV systems, filters, softeners and pumps, whoever installed them. If something is worn out, we’ll tell you honestly and quote before doing the work.
Can you register our supply and write our water safety plan?
Yes. We can register your supply with Taumata Arowai, write your drinking water safety plan and keep it up to date. See our water safety plan service.
How often should our water be tested?
It depends on your supply. Supplies of 26 to 100 people on the Quality Assurance Rules test for E. coli every three months, and food businesses must show MPI their water is safe. We take the samples and send them to an accredited laboratory. See water testing.
Why do quartz sleeves need cleaning?
The UV lamp sits inside a glass quartz sleeve. Minerals and dirt slowly coat the outside of the sleeve and block the UV light, so the dose drops and bugs can get through. We clean the sleeves every six months on most commercial sites.
Do you test backflow prevention devices?
Yes. We test backflow devices every year as part of the annual service, and record the results.
What areas do you cover?
Rodney and North Auckland, from Mangawhai to Albany, including Warkworth, Matakana, Wellsford, Orewa and the Hibiscus Coast. For larger sites further away, give us a call.
Don’t just take our word for it…
⭐⭐⭐⭐⭐
“Outstanding service. We have been with Steve and his team for over almost 20 years now and feel secure in the expertise and support they have provided to us in the past and going forward. Absolutely your go to for safe water provision.”
A. B., 2026
⭐⭐⭐⭐⭐
“Excellent experience. Technician turned up on Sunday am, within 90mins of call out, which included him going to the store to pick up the parts. This was so important, as without their help the Childcare center would not have been able to open on the Monday. Thanks to Sherrie, Richard and the team.”
Barry Larman, 2025
⭐⭐⭐⭐⭐
“Easy and straight forward process every year. Great team and great service.”
CoastLab Team, 2025
Want us to look after your water?
Call us for a free onsite visit. We service most makes and models, whoever installed them.