Betta Plumbing & Gas
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Hot Water Systems

Cylinders, continuous flow and heat-pump systems — supplied, installed and sized to your actual needs.

Heat-pump hot water system going in
Heat-pump hot water system going in

Hot water is one of the most common calls we get — and one of the easiest places to get oversold. We supply and install all major hot water brands including Rheem, Rinnai, HotSpring and Stiebel Eltron, and we'll always give you an honest recommendation based on your actual needs — not the most expensive option.

What this covers

Hot water cylinders

Replacement and new installs, sized to your household — most cylinder installations are done in a day.

Heat-pump hot water

Whisper-quiet, energy-efficient systems that cut water-heating power use — a smart upgrade for Coast homes.

Gas continuous flow

Endless hot water from a compact wall unit — installed and certified by a certifying gasfitter.

Sizing advice

1–2 people ≈ 135–180 L, 3–4 ≈ 180–250 L, 5+ ≈ 250–300 L — we check your household habits before we recommend a size.

The Betta promise
  • Free on-site visit — we come take a look, have a chat, and check your current setup.
  • Fixed quote — no surprises. You approve the full quote before we book anything in.
  • Fast install — most hot water cylinder installations are done in a day.
  • We take care of the old cylinder — removal and disposal included.
Rumbling noises, rusty water or a cylinder over 10 years old? Book a health check before it fails at the worst possible time.
On the job

Recent hot water systems work

Copper pipework on a continuous-flow install
Copper pipework on a continuous-flow install
Outdoor hot water cylinder install, copper-piped
Outdoor hot water cylinder install, copper-piped
Rinnai continuous-flow gas hot water
Rinnai continuous-flow gas hot water
Local. Trusted. No-fuss.

Ready when you are.

Call or email to discuss your job — you'll get honest advice and a fixed quote with clear pricing, and we'll book a time that suits you.