Hot water Lilli Pilli
Updated October 2026
Lilli Pilli is one of the Shire's quiet waterfront pockets, tucked between Caringbah South and the Port Hacking estuary. The homes here skew large. Multiple bathrooms, big families, ensuites off every second bedroom, and in many cases a hot water system that was sized for the house as it was twenty years ago, not as it is now after a renovation or two.
We are a referral service, not a plumbing company. We connect you with licensed hot water plumbers who know Lilli Pilli and can size a system properly for a bigger household.
The Lilli Pilli problem: undersized systems
The classic call from Lilli Pilli is not a dead unit. It is a unit that runs out. Two showers running, a dishwasher going, and the third person gets cold water. That is a capacity problem, and the fix is a bigger tank or a switch to continuous flow.
For a four or five person home with three bathrooms, plumbers typically talk in terms of a 315L storage tank or a continuous-flow unit, sometimes two continuous-flow units on larger waterfront homes so the far end of the house is not waiting on a long pipe run. If your street has gas, gas continuous flow handles back-to-back showers without a tank at all.
The other common failure is simple age. A storage tank that is weeping from the body is finished. A leaking tank means replacement, not repair. Leaking valves, failed elements and thermostats, on the other hand, are standard repair jobs and often fixed in one visit.
Replacement without the cold-shower wait
Same-day replacement is the norm for standard sizes. Larger 315L tanks and twin continuous-flow setups can take an extra day to arrange, so if your system is over ten years old and showing rust at the base, it pays to plan the swap before it forces the issue.
Pricing runs from around $800 to $2,500 installed for electric storage, more for gas, continuous flow and heat pumps. Heat pumps attract incentives that can cut thousands off the price, and the installer quotes the net figure. For big households, note that heat pump recovery is slower than gas, so sizing matters even more.
Whether it is no hot water this morning or a planned upgrade, start here.
Frequently asked questions
What size hot water system suits a Lilli Pilli family home?
For three or more bathrooms, think 315L storage or continuous flow. The licensed hot water plumbers we work with will count your bathrooms and people before quoting, not just match the old unit.
We keep running out of hot water. Is the system broken?
Probably not. It is likely undersized for the household. An electric storage tank can be upsized, or you can move to continuous flow and never run out.