103 Avoca Street, Randwick. Eastern Suburbs plumbers since 1930

Open 24/7 02 9398 1397

Hot water repairs and new systems

No hot water? We repair and replace gas and electric systems, often the same day.

Plumber talking to a customer about his hot water system
  • Licensed since 1930Six generations, same family
  • MPA membersMaster Plumbers Association, 90+ years
  • Licence 494711CNSW contractor licence
  • Fully insuredWorkers comp and unlimited common law cover
  • Lifetime guaranteeOn our workmanship
  • Champion Awards finalist2026 Australian Trades Small Business awards

Repair or replace

We've been fixing and installing hot water systems around the Eastern Suburbs for a long time. Our plumbers and gas fitters work on gas and electric units, storage tanks and continuous flow.

We carry parts for the major brands, so a lot of repairs get done on the spot. If the system is on its way out, we'll tell you straight and give you a price for a new one before any work starts.

Customer showing a plumber the problem in her bathroom

Brands we work on

Rheem, Rinnai, Dux, Bosch, Vulcan, Aquamax, Thermann and the rest. If it heats water, we've probably had our hands on one. For a new system we'll recommend a brand and size that suits the house and the people in it, not whatever happens to be on special.

Hot water work

  • Repairs to gas and electric systems
  • Like for like replacements, often within 24 hours
  • Upgrades to continuous flow
  • Relief valves, thermostats and elements
  • Strata and commercial hot water plant
  • After hours call outs when the hot water dies

Picking a new system

Like for like is the quickest and cheapest swap, and most of the time that's the right call. If the old tank has been running out of hot water, a bigger tank or a continuous flow unit fixes that for good. If there's gas at the property, gas continuous flow is hard to beat for a family home. For units and smaller places, an electric storage unit is often the simplest.

We'll talk through the options on the day. Where it sits, what the gas or power supply can handle, and what the strata or council rules say about putting it outside. Then you get one price for the unit, the install, the valves and the certificate.

Hot water in unit blocks

A lot of our hot water work is in strata buildings. That ranges from swapping the unit in a single apartment to looking after the central plant that feeds a whole block. If a shared system has gone down, we treat it as an emergency, because it's everyone's shower.

Signs it's time

Rusty water, a leaking tank, a valve that keeps dripping or a system that's well past ten years old. The video below covers what to look for.

Common questions

My hot water has died. How fast can you replace it?

Usually the same day or the next morning. We carry common sizes and can get most units quickly, so a like for like swap is often done within 24 hours of your call.

Should I repair it or replace it?

If it's under about ten years old and it's a valve, thermostat or element, repair. If the tank itself is leaking or rusting, it's done, and a repair is throwing money away. We'll tell you which it is before you spend anything.

Why does the hot water keep running out?

Either the tank is too small for the household, an element or thermostat has failed so it's only heating half the tank, or the tank has sediment in the bottom. All three are fixable. We check which one it is first.

Gas or electric, storage or continuous flow?

If you have gas, continuous flow gives you endless hot water and takes up almost no room. Storage units are cheaper up front and simpler. Electric is the easy choice in units with no gas. We'll recommend what suits the property, not the dearest option.

Do you do hot water after hours?

Yes. We answer 24/7, and a family with no hot water counts as an emergency. Call 02 9398 1397.

Do I get a certificate?

Yes. Gas installs get a certificate of compliance, and every new system is installed to the standard with the right valves and tempering. That matters for insurance and for strata.

Where we do hot water work

Based in Randwick and working right across the Eastern Suburbs, including:

Handy videos

Google reviews

What our customers say

4.884 Google reviewsRead them on Google

These plumbers are great. They come on time, they know what they're doing and the prices are fair. We have used them for strata work and I have also used them myself. Highly recommended!

Kim WilsonStrata and home · Google review

We have been using McElroy Plumbing for close to 20 years, their response to our calls has been immediate and the problem fixed promptly in a first class manner and the costs reasonable. We recently had a hot water failure and a new one installed within 24 hrs. We would recommend McElroy for any plumbing job.

Max McLeodCustomer for 20 years · Google review

All the plumbers that have been sent out to our place from McElroy Plumbing are professional, friendly, on time and get the job done. They explain what the issue is and provide solutions. Very proactive, great work and affordable. What more do you want in your plumbers?

Jim VartisHome · Google review

Got a plumbing problem?

Call the Randwick office any time, 24/7. Or send us the details and we'll get back to you with a quote.

Call nowGet a quote