Hot Water Systems in the Illawarra
No hot water? We have access to a wide range of genuine Rheem, Rinnai, Dux and Thermann parts through our local plumbing suppliers, so we can usually have hot water restored the same day, or a new system installed within 24 hours.

Local hot water systems you can actually rely on
Hot water failures are the single most common planned-emergency call we take across Shellharbour and the Illawarra. The classic story is the same most weeks: the unit was old, it had been making noises for a while, and now it's leaking from the body of the tank or there's no hot water at all. We have access to a wide range of genuine replacement parts — elements, thermostats, PTR valves, anodes, ignition modules — for Rheem, Rinnai, Dux, Thermann, Bosch, Vulcan and Aquamax through our plumbing suppliers, so we can source the correct components quickly and complete repairs as efficiently as possible.
When a repair no longer makes sense (a leaking tank body, a unit over 10–12 years old, repeat failures), we quote both the repair and a like-for-like replacement so you can see the real numbers. We'll also walk you through whether a heat pump or solar swap could pay for itself through lower running costs. You may be eligible for a rebate through the NSW Energy Savings Scheme or your energy provider — we recommend checking the relevant government or provider requirements directly to confirm what applies to you. A standard like-for-like hot water replacement in Shellharbour is typically completed in 2–3 hours, including hot water back on, removal of the old unit, and the Certificate of Compliance lodged with NSW Fair Trading.
We install gas continuous-flow units (Rinnai Infinity, Rheem Metro, Bosch Hydropower), electric storage (Rheem, Dux, Thermann), solar with electric or gas boost, and heat pumps (Reclaim, iStore, Sanden, Rheem Ambiheat). Every installation includes correct tempering valve setup (50°C at the outlet per AS/NZS 3500.4), pressure-limiting where required, and a written warranty on workmanship in addition to the manufacturer warranty.
Signs you need a hot water systems plumber
If any of these sound familiar, call us on 0466 442 293 — we'll talk it through and book you in.
- Lukewarm or rapidly cooling water
- Rusty or discoloured hot water
- Banging, hissing or whistling tank
- Water pooling around the base
- Pilot light won't stay lit
- Hot water bill suddenly jumped
- Unit older than 10 years and showing surface rust
Our hot water systems process
Diagnose
We test the element, thermostat, valves and anode before recommending repair vs replace.
Quote both options
You see the cost of repair AND a like-for-like replacement, with energy-saving upgrades if relevant.
Same-day fix
Most repairs and many full replacements are completed the same day from van stock.
Compliance
Every install is registered with a Certificate of Compliance and full manufacturer warranty.
Most hot water systems jobs across Shellharbour, Kiama and Wollongong are attended the same day you call — 24/7 for emergencies.
Fully licensed plumber and gas fitter, $20m public liability cover, Certificates of Compliance lodged with NSW Fair Trading.
We carry common parts for tap, toilet, drain and hot-water jobs on the van, with fast supplier access for anything more specialised — so most repairs are done permanently on the first visit.
Every repair and install is backed in writing — if anything isn't right, we come back. No fight.
The Illawarra's licensed hot water systems specialists
Ready to book your hot water systems job?
Serving the entire Illawarra from our Shellharbour base.
Recent hot water systems jobs across the Illawarra
Real on-site photos from hot water systems work we've completed across Shellharbour, Kiama and Wollongong.

Like-for-like changeover to a 170L Rinnai Hotflo — new gas line, tundish, copper relief and certificate of compliance issued same-day.

New Rinnai gas storage cylinder installed on a fresh base — copper flow & return, isolation valve and tempering all sorted, old unit removed.

Rheem Metro Max continuous flow unit installed alongside the rainwater tank and pressure pump — gas, water and condensate all tied in.

New Rheem Stellar electric storage unit installed on a fresh concrete pad — tempering valve, flex connectors and tundish all done.

New Hotflo Plus electric storage unit hard up against the brick wall — tempering valve, isolation cock and tundish all done, tidy concrete pad.
Hot Water Systems — FAQ
Quick answers about our hot water systems service. Don't see your question? Browse all FAQs or call 0466 442 293.
Hot Water Systems — areas we cover
Local hot water systems across the Illawarra — Shellharbour, Kiama and Wollongong LGAs.
Related services
From the blog
- Hot Water System: Repair or Replace? An Illawarra Plumber's Honest ViewTanks over 10 years old, body rust, or repeat thermostat failures usually mean it's replacement time. Here's how we work it out on-site.5 min read · Hot Water
- Rheem vs Rinnai vs Dux: Which Hot Water Brand Lasts Longest in NSW?After 15 years of warranty call-outs across the Illawarra, here's what we actually see fail first — and which brand we'd put in our own house.7 min read · Buyer's Guide
- How Long Does a Hot Water System Last? Signs Yours Is About To DieThe average tank in the Illawarra makes it 10–12 years. Here are the 7 warning signs it's getting close — and what you can do at year 5 to add years to its life.6 min read · Hot Water