Waikato Pond Services

Pond maintenance across the Waikato

Clear water. Healthy fish. No stress.

Waikato Pond Services looks after koi ponds, goldfish ponds and garden water features from Cambridge to Hamilton and across the wider Waikato. Regular maintenance so you never have to think about your pond.

Get a pond assessment →

Step 1

Pond cleaning

We drain, vacuum sludge from the base, scrub algae from walls and rocks, clean or replace filter media, and refill with treated water. Most ponds take two to three hours.

  • Small pond (under 2,000L)
    From $180
  • Medium pond (2,000–5,000L)
    From $280
  • Large pond (5,000–15,000L)
    From $420
  • Water feature (fountain, pondless)
    From $120

What we bring

Submersible pump, vacuum head, filter brushes, dechlorinator, test kit, nets and a holding tank for fish during a full drain.

Step 2

Filter & pump servicing

We inspect the pump impeller, clean or replace UV bulbs, service pressure filters and gravity-fed bio-filters, and check flow rates. A well-maintained filter means clear water between cleans.

  • Filter service (clean, inspect, test flow)
    From $120
  • UV bulb replacement
    From $85
  • Pump replacement (supply + fit)
    From $220

Common filters

We service Oase, Laguna, Aqua One, Matala and most other brands found in New Zealand ponds.

Step 3

Water testing

We test pH, ammonia, nitrite, nitrate, KH and GH on every visit and email you the results. For koi keepers, we also check dissolved oxygen and temperature at depth.

  • Standard test (6 parameters)
    $65
  • Extended koi test (8 parameters + DO)
    $95
  • Included in all maintenance plans
    —

Healthy ranges

pH
7.0 – 8.0 for koi, 6.5 – 7.5 for goldfish
Ammonia
0 ppm (any reading is a concern)
Nitrite
0 ppm (toxic at any level)
KH
80 – 120 ppm (prevents pH crash)

Step 4

Maintenance plans

Set and forget. We visit on a regular schedule, test the water, service the filter and clean the pond as needed. You get an email summary after every visit.

Bronze

$55/month

  • Quarterly full clean
  • Water test each visit
  • Filter check each visit
  • Email summary

Silver

$95/month

  • Bi-monthly full clean
  • Water test each visit
  • Filter service each visit
  • UV bulb included annually
  • Priority scheduling

Gold

$165/month

  • Monthly full clean
  • Water test + koi health check
  • All filter media and UV included
  • Plant trimming and repotting
  • Emergency callout (24hr response)

Service area

Where we work

We cover Cambridge, Hamilton, Te Awamutu, Matamata, Morrinsville and most of the wider Waikato. Travel is included for all plan customers within 30 km of Cambridge; a mileage charge applies beyond that.

Service area map showing Cambridge at the centre with surrounding towns Cambridge Hamilton Te Awamutu Matamata Morrinsville Ngāruawāhia Tauranga (by arrangement)

Step 5

Common pond problems

Most pond issues have simple causes. Here is what to look for — and when to call us.

Which service do you need?

Answer three questions and we will recommend the right service.

What is the main issue?

Why is my pond water green?

Suspended algae. Usually caused by too much sunlight, excess nutrients from fish waste or overstocking, and an undersized or poorly maintained UV clarifier.

How often should I clean my pond?

Most ponds need a full clean twice a year — spring and autumn. Koi ponds with heavy stocking may need quarterly cleaning.

Are my fish safe during a clean?

Yes. We catch and hold fish in an aerated holding tank with pond water during the clean. They go back once the pond is refilled and dechlorinated.

Do you supply fish or plants?

We do not sell fish or plants directly, but we work with several aquatic nurseries and breeders in the Waikato and can source on your behalf.

Testimonials

What pond owners say

  • Our koi pond had been neglected for two years. Grant came out, tested the water, did a full clean and set us up on a Silver plan. The pond has never looked better.
    — Helen, Hamilton, koi pond, March 2026
  • We had a persistent green water problem. Turned out the UV bulb was two years old and the flow rate was too high for the filter. Fixed in one visit.
    — Ray & Sue, Cambridge, goldfish pond, June 2026
  • The monthly Gold plan is worth every cent. We do not think about the pond any more — it just works, and the fish are thriving.
    — The Patels, Matamata, water garden, ongoing

Step 6

Get in touch

Call, email or text for a free pond assessment. We will visit, test the water, inspect the filter and give you a quote on the spot — no obligation.

Waikato Pond Services

Cambridge, Waikato

07 827 0000 · ponds@waikatoponds.co.nz

We visit Monday to Friday, 8am – 5pm. Emergency callouts for Gold plan customers are available 7 days.